<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">An STS is more expensive, is only suitable for use when the two supplies are phase-synchronized, and typically runs at 99% thermal efficiency.<div class=""><br class=""></div><div class=""><div class=""><div class="">While UPS power feeds should be phase-syncronized to mains, there are certain failure modes where they’ll drift, resulting in A and B losing sync; additionally, your colo provider might be powering your rack’s A and B supplies from different phases (if not today, then maybe tomorrow - it’s their prerogative)</div><div class=""><br class=""></div><div class="">Also: The only reason an STS switches to a replacement supply is if the normal supply has failed, so it’s difficult to imagine how that can be a no-break operation anyway.<br class=""></div><div class=""><br class=""></div><div class="">A relay or contactor driven ATS typically has a high MTBF, doesn’t care about input phases at all, and runs with the same thermal efficiency as a piece of wire.<br class=""><div class=""><br class=""></div></div><div class="">The break in an ATS is circa 50 mSec, which is well within the endurance of the capacitors in the cheapest switch mode power supply you’re capable of buying. </div><div class=""><br class=""></div><div class="">I’ve never seen IT equipment notice a rack ATS changeover.</div><div class=""><br class=""></div><div class=""> - mark</div><div class=""><br class=""><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Aug 10, 2017, at 4:24 AM, James Braunegg <<a href="mailto:james.braunegg@micron21.com" class="">james.braunegg@micron21.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class="">Dear All<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class="">Anyone with single power supply devices please do not look at getting an ATS, get a STS !!!<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="" class="">Short version<o:p class=""></o:p></span></b></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class="">ATS (Automatic Transfer Switch) will typically break power before it makes, thus the connected device could reboot !!<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class="">STS (Static Transfer Switch) will make power before it breaks, providing no break to the power !<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class="">An example of a recommended device is below<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><a href="https://www.vertivco.com/en-asia/products-catalog/critical-power/power-transfer-switches/liebert-lts-63-to-400a/" style="color: purple; text-decoration: underline;" class="">https://www.vertivco.com/en-asia/products-catalog/critical-power/power-transfer-switches/liebert-lts-63-to-400a/</a><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">Kindest Regards,<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class=""><o:p class=""> </o:p></span></div><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse: collapse;"><tbody class=""><tr class=""><td style="padding: 0cm 0cm 11.25pt;" class=""><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse: collapse;"><tbody class=""><tr class=""><td valign="top" style="padding: 0cm;" class=""><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse: collapse;"><tbody class=""><tr class=""><td style="padding: 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; line-height: 15pt;" class=""><b class=""><span style="font-size: 11.5pt; font-family: Arial, sans-serif; color: rgb(100, 113, 122);" class="">James Braunegg<o:p class=""></o:p></span></b></div></td></tr><tr class=""><td style="padding: 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; line-height: 12.75pt;" class=""><span style="font-size: 9pt; font-family: Arial, sans-serif; color: rgb(100, 113, 122);" class=""><o:p class=""></o:p></span></div></td></tr></tbody></table></td><td valign="top" style="padding: 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-family: 'Times New Roman', serif;" class=""><span id="cid:image005.png@01D311D2.C83558A0"><image005.png></span></span><span style="font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""></o:p></span></div></td><td valign="top" style="padding: 0cm;" class=""><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse: collapse;"><tbody class=""><tr class=""><td style="padding: 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; 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color: rgb(100, 113, 122);" class="">Follow us on </span><span style="" class=""><a href="https://twitter.com/micron21" title="Follow Micron21 on Twitter" style="color: purple; text-decoration: underline;" class=""><span style="font-size: 9pt; font-family: Arial, sans-serif; color: rgb(100, 113, 122);" class="">Twitter</span></a></span><span style="font-size: 9pt; font-family: Arial, sans-serif; color: rgb(100, 113, 122);" class=""> for important service and system updates.<o:p class=""></o:p></span></div></td></tr></tbody></table></td></tr><tr class=""><td style="padding: 0cm;" class=""><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="735" style="width: 367.5pt; border-collapse: collapse;"><tbody class=""><tr class=""><td style="padding: 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; line-height: 12.75pt;" class=""><span style="font-size: 9pt; font-family: Arial, sans-serif; color: rgb(100, 113, 122);" class="">This message is intended for the addressee named above. It may contain privileged or confidential information. If you are not the intended recipient of this message you must not use, copy, distribute or disclose it to anyone other than the addressee. If you have received this message in error please return the message to the sender by replying to it and then delete the message from your computer.</span><span style="font-size: 9pt; font-family: Arial, sans-serif; color: rgb(100, 113, 122);" class=""><o:p class=""></o:p></span></div></td></tr></tbody></table></td></tr></tbody></table><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class=""><o:p class=""> </o:p></span></div><div class=""><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(225, 225, 225); padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span lang="EN-US" class="">From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">mailto:ausnog-bounces@lists.ausnog.net</a>]<span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Matthew Smee<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, 10 August 2017 12:00 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August<o:p class=""></o:p></span></div></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="">+1<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="">Every DC agreement I’ve seen (3) have mentioned that you are responsible for supplying it with power and they aren’t responsible if it loses power (i.e. use an ATS).<span class="Apple-converted-space"> </span></span><span style="font-size: 8pt; font-family: Arial, sans-serif; color: rgb(77, 77, 77);" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span lang="EN-US" class="">From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">mailto:ausnog-bounces@lists.ausnog.net</a>]<span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Sam Silvester<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, 10 August 2017 10:14 AM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>Shaun McGuane <<a href="mailto:shaun@rackcentral.com" style="color: purple; text-decoration: underline;" class="">shaun@rackcentral.com</a>><br class=""><b class="">Cc:</b><span class="Apple-converted-space"> </span><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">If you have single fed equipment in your rack that needs planning before it can be shut down, do you not run a totally forseeable and preventable risk then should that one feed trip?<o:p class=""></o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">This is what ATS are for.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Sam<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><br class=""><br class="">On Thursday, 10 August 2017, Shaun McGuane <<a href="mailto:shaun@rackcentral.com" style="color: purple; text-decoration: underline;" class="">shaun@rackcentral.com</a>> wrote:<o:p class=""></o:p></div><blockquote style="border-style: none none none solid; border-left-width: 1pt; border-left-color: rgb(204, 204, 204); padding: 0cm 0cm 0cm 6pt; margin: 5pt 0cm 5pt 4.8pt;" class=""><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">HI Simon,</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Thank you for your input to the list.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">While you may have provided notifications well in advance, your schedule provided has been changed multiple times and this creates confusion.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Without asking for further clarification last night I would never have received the following updated schedule from Craig Armstrong today.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Data Hall 2 – B feed (west/blue PDU side) Tuesday 15<sup class="">th</sup><span class="Apple-converted-space"> </span>Aug, A feed has been pushed back to later date around November, you will receive official notice once new date confirmed.<o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Data Hall 3 –A and B feed has been pushed back to later date around October/November, you will receive official notice once new date confirmed.<o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Data Hall 4 –A and B feed has been pushed back to later date around October/November, you will receive official notice once new date confirmed.<o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">From the latest update today, It appears that most of the works are being postponed for the time being</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Not all devices within racks support 2 feeds and planning is involved with these devices, which is why it is crucial to receive accurate information about any pending outages or upgrades<br class="">to the NextDC DataCentres which affect services.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Additionally, I have not received these updates via the normal NextDC E-Mail communication method, so I am sure other customers will be wondering whats happening too.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Happy to have a conversation offline about this feel free to give me a call on my mobile.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Regards</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class="">Shaun</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="color: rgb(31, 73, 125);" class=""> </span><o:p class=""></o:p></div><div class=""><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(225, 225, 225); padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span lang="EN-US" class="">From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">mailto:</a><a target="_blank" class=""></a><a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog-bounces@lists.ausnog.net</a>]<span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Simon Cooper<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, 10 August 2017 8:39 AM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a target="_blank" class=""></a><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August</span><o:p class=""></o:p></div></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks guys, appreciate the feedback.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">At NEXTDC we work very hard to keep critical infrastructure maintenance that impacts racks or the environment within the data hall to an absolute minimum.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">However, some works are required to happen from time to time by law and one of those activities is a de-energisation and inspection of each of our major switchboards. This is all about ensuring that the electrical system is safe, and is an unavoidable piece of work. Rightly so.<o:p class=""></o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Every rack in a NEXTDC data centre has 2N power feeds offered to it, and we highly recommend that they are used for every device in the rack. This occasional maintenance is one of the many reasons we provide this capability. Any device using the 2N supplies (aka A & B feeds) will simply see its power swing from one feed to the other. Any rack that is drawing no more that its contracted power level will have no issue when all devices move from A to B or vice versa.<o:p class=""></o:p></div></div><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Our notifications were made well in advance, as we want to give customers time to consider the management of these works and we don't assume that every rack is perfectly deployed: We are here 24/7 to assist customers with rack inspections or specific circuit down tests or maybe a controlled move prior to the day (e.g. for devices that are single fed).<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Also, as we work though those discussions with customers we understand the timing in relation to their businesses, and we work very hard to coordinate schedules despite each switch board supporting many different customers and customer instances across the data centre. Occasionally that means we have to make a difficult decisions which may result in schedule changes. When that does happen, we do not compromise our notification periods.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I'll be happy to discuss these works with anyone - probably best offline or on the phone - but trust me when I say we are doing our absolute best to keep your data centre operating safely and reliably for many years to come.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks,<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Simon<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">COO, NEXTDC<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div><blockquote style="border-style: none none none solid; border-left-width: 1.5pt; border-left-color: blue; padding: 0cm 0cm 0cm 4pt; margin: 5pt 0cm 5pt 3.75pt;" class=""><div class=""><p class="MsoNormal" style="margin: 0cm 0cm 12pt; font-size: 11pt; font-family: Calibri, sans-serif;">-----Original Message-----<br class=""><b class="">From:</b><span class="Apple-converted-space"> </span><a target="_blank" class=""></a><a href="mailto:nathan@nightsys.net" style="color: purple; text-decoration: underline;" class="">nathan@nightsys.net</a><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Thu, 10 Aug 2017 05:39:02 +1000<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a target="_blank" class=""></a><a href="mailto:shaun@rackcentral.com" style="color: purple; text-decoration: underline;" class="">shaun@rackcentral.com</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August<o:p class=""></o:p></p></div><div class=""><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">This seems reasonable? As long as no single Data Hall has both A and B feeds removed simultaneously, that seems normal. Doing B on Hall 2 and A on Hall 3 on the same day does seem slightly adventurous, but not entirely unreasonable (mostly in terms of if something goes bad in both, staff get stretched thin remediating issues).<o:p class=""></o:p></div><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">A and B feeds are designed to provide redundancy to equipment, allowing one feed to fail and systems to continue on the other. Anything mission critical should be able to draw from either feed as required (dual PSU), and if there is a power deficit on one feed (causing circuits to trip), that would imply the circuits are incorrectly sized?<o:p class=""></o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">In addition, anything mission critical with a single power supply would be on an ATS you would assume, or a pair of equivalent devices installed with one on each rail?<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Things break in datacentres, planned maintenance happens sometimes, better than no maintenance at all :) The fact they are notifying you is better than not, and it being scheduled is probably still better than unscheduled :) (easier to ensure sufficient staffing to keep a close eye on things)<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Nathan.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div><div class=""><p class="MsoNormal" style="margin: 0cm 0cm 12pt; font-size: 11pt; font-family: Calibri, sans-serif;">On Wed, Aug 9, 2017 at 3:43 PM, Shaun McGuane <<a target="_blank" class=""></a><a href="mailto:shaun@rackcentral.com" style="color: purple; text-decoration: underline;" class="">shaun@rackcentral.com</a>> wrote:<o:p class=""></o:p></p><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Here is the entire scheduled maintenance windows for all the halls we occupy.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">DataHall 2<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">A Feed - Tuesday 8th August 2017 07:00 UTC +10 until 16:00 UTC +10.<br class="">B Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC +10.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">DataHall 3<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">A Feed - Tuesday 15<sup class="">th</sup> August 2017 07:00 UTC +10 until 16:00 UTC +10<br class="">B Feed - Monday 14<sup class="">th</sup><span class="Apple-converted-space"> </span>August 2017 07:00 UTC +10 until 16:00 UTC +10<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">DataHall 4<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">B Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC +10.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">· So looks like no power on 3 data halls B feeds on the same day.<span class="Apple-converted-space"> </span><o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">· Data Hall 2 was scheduled for A rail on the 8<sup class="">th</sup><span class="Apple-converted-space"> </span>of August but has been re-scheduled with no new date of works.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">· Data Hall 3 was scheduled for A rail on the<span class="Apple-converted-space"> </span><o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Problem is that I have 3x separate dates on 3 separate e-mails for Data Hall 3 and I have requested a revised clarification<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Just now on the above as there has already been re-schedules for Data Hall 2 and 3.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">This feels like it’s going sideways and it has not even started.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Regards<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Shaun<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span lang="EN-US" class="">From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">mailto:</a><a target="_blank" class=""></a><a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog-bounces@lists.ausnog.net</a>]<span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Murat Sener<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Wednesday, 9 August 2017 3:20 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>Matthew VK3EVL <<a target="_blank" class=""></a><a href="mailto:hitman@itglowz.com" style="color: purple; text-decoration: underline;" class="">hitman@itglowz.com</a>>;<span class="Apple-converted-space"> </span><a target="_blank" class=""></a><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a></span><o:p class=""></o:p></p><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August<o:p class=""></o:p></div></div></div></div></div><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><a name="m_-6104262177373382995_m_-63900791691279" class="">We have been told only Feed B in Data hall 2 will be effected as per original schedule and Feed A is yet to be rescheduled.</a><o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><div class=""><table class="MsoNormalTable" border="0" cellspacing="3" cellpadding="0" width="750" style="width: 375pt;"><tbody class=""><tr class=""><td width="84" rowspan="2" valign="bottom" style="width: 42pt; padding: 0cm;" class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span id="cid:image009.png@01D311D2.C83558A0"><image009.png></span><o:p class=""></o:p></p></td><td style="padding: 0cm;" class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class="">Murat Sener</b> Datacentre Manager<o:p class=""></o:p></p></td></tr><tr class=""><td style="padding: 0cm;" class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class="">PREMIER</b><span class="Apple-converted-space"> </span>Technology Solutions<br class=""><b class="">P.<span class="Apple-converted-space"> </span></b>1300 76 76 48 <span class="Apple-converted-space"> </span><b class="">F.<span class="Apple-converted-space"> </span></b>1300 76 76 49 <span class="Apple-converted-space"> </span><b class="">M.<span class="Apple-converted-space"> </span></b>0450 604 350<span class="Apple-converted-space"> </span><o:p class=""></o:p></p></td></tr></tbody></table><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="758" style="width: 378.75pt;"><tbody class=""><tr class=""><td width="450" style="width: 225pt; padding: 0cm;" class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class="">How am I doing? Let us know!</b><br class="">SIMPLY CLICK ON A FACE TO GIVE FEEDBACK<span class="Apple-converted-space"> </span><o:p class=""></o:p></p></td><td width="308" style="width: 153.75pt; padding: 0cm;" class=""><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="100%" style="width: 205px;"><tbody class=""><tr class=""><td valign="bottom" style="padding: 0cm;" class=""><p align="center" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;" class=""><b class="">GREAT</b><o:p class=""></o:p></p></td><td valign="bottom" style="padding: 0cm;" class=""><p align="center" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;" class=""><b class="">AVERAGE</b><o:p class=""></o:p></p></td><td valign="bottom" style="padding: 0cm;" class=""><p align="center" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;" class=""><b class="">BAD</b><o:p class=""></o:p></p></td></tr><tr class=""><td width="53" valign="top" style="width: 26.25pt; padding: 0cm;" class=""><p align="center" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;" class=""><a href="https://protect-au.mimecast.com/s/ZXg4BxUQRobS3?domain=crewhu.com" target="_blank" style="color: purple; text-decoration: underline;" class=""><span style="text-decoration: none;" class=""><span id="cid:image010.png@01D311D2.C83558A0"><image010.png></span></span></a><o:p class=""></o:p></p></td><td width="53" valign="top" style="width: 26.25pt; padding: 0cm;" class=""><p align="center" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;" class=""><a href="https://protect-au.mimecast.com/s/m4kKB9UQ4mAS1?domain=crewhu.com" target="_blank" style="color: purple; text-decoration: underline;" class=""><span style="text-decoration: none;" class=""><span id="cid:image011.png@01D311D2.C83558A0"><image011.png></span></span></a><o:p class=""></o:p></p></td><td width="53" valign="top" style="width: 26.25pt; padding: 0cm;" class=""><p align="center" style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;" class=""><a href="https://protect-au.mimecast.com/s/krZGBXug3DJiw?domain=crewhu.com" target="_blank" style="color: purple; text-decoration: underline;" class=""><span style="text-decoration: none;" class=""><span id="cid:image012.png@01D311D2.C83558A0"><image012.png></span></span></a><o:p class=""></o:p></p></td></tr></tbody></table></td></tr></tbody></table></div><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span lang="EN-US" class="">From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>AusNOG [<a target="_blank" class=""></a><a href="mailto:ausnog-bounces@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">mailto:ausnog-bounces@lists.ausnog.net</a>]<span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Matthew VK3EVL<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Wednesday, 9 August 2017 3:13 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a target="_blank" class=""></a><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August</span><o:p class=""></o:p></p></div></div><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">What about both feeds happening on the same day at the same time?<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">On 9/08/2017 2:55 PM, Shaun McGuane wrote:<o:p class=""></o:p></p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">HI Damien,<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">My apologies that’s correct – but isn’t anyone concerned about the works being completed during business hours?<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">What about increased loading of the active rail once one of them is switched off for these works?<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Regards<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Shaun<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span lang="EN-US" class="">From:</span></b><span lang="EN-US" class=""><span class="Apple-converted-space"> </span>Damien Gardner Jnr [<a target="_blank" class=""></a><a href="mailto:rendrag@rendrag.net" style="color: purple; text-decoration: underline;" class="">mailto:rendrag@rendrag.net</a>]<span class="Apple-converted-space"> </span><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Wednesday, 9 August 2017 2:39 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a target="_blank" class=""><</a><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a>><span class="Apple-converted-space"> </span><a target="_blank" class=""><</a><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a>>; Shaun McGuane<span class="Apple-converted-space"> </span><a target="_blank" class=""><</a><a href="mailto:shaun@rackcentral.com" style="color: purple; text-decoration: underline;" class="">shaun@rackcentral.com</a>><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance - 15th August</span><o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">It says 7am -> 4pm in what you quoted? (UTC+10 is AEST)<o:p class=""></o:p></p></div><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">On Wed, 9 Aug 2017 at 2:36 pm, Shaun McGuane <<a target="_blank" class=""></a><a href="mailto:shaun@rackcentral.com" style="color: purple; text-decoration: underline;" class="">shaun@rackcentral.com</a>> wrote:<o:p class=""></o:p></p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">HI Noggers,<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Has anyone seen this scheduled maintenance notification happening next week?<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">They maybe upgrading feeds or boards throughout the datacentre – has everyone seen this notification of works?<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">It appears to be happening starting 5PM through to 2AM AEST for all Datahalls on the same date.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class="">WHAT:</b><br class="">NEXTDC M1 Melbourne data centre, with the assistance of specialist contractors, will conduct offline preventative electrical maintenance work on high-voltage and low-voltage main isolators. This will affect A and B feeds to the racks in Data Hall 2/3/4 on the 15th of August.<br class=""><br class=""><b class="">WHEN:</b><br class="">A Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC +10.<br class="">B Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC +10.<br class=""><br class=""><b class="">HOW AM I AFFECTED?</b><br class="">Due to the nature of the work a single feed will be removed as per the dates and times above. We recommend that customers balance the power between both power rails to minimise impact during this period. If you have single feed devices we recommend you:<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Regards<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Shaun<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></p></div></div><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">_______________________________________________<br class="">AusNOG mailing list<br class=""><a target="_blank" class=""></a><a href="mailto:AusNOG@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">AusNOG@lists.ausnog.net</a><br class=""><a href="https://protect-au.mimecast.com/s/pLG0B1fQrxkS1?domain=lists.ausnog.net" target="_blank" style="color: purple; text-decoration: underline;" class="">http://lists.ausnog.net/mailman/listinfo/ausnog</a><o:p class=""></o:p></p></blockquote></div></div><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">--<span class="Apple-converted-space"> </span><o:p class=""></o:p></p></div><div class=""><div class=""><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Damien Gardner Jnr<br class="">VK2TDG. Dip EE. GradIEAust<br class=""><a target="_blank" class=""></a><a href="mailto:rendrag@rendrag.net" style="color: purple; text-decoration: underline;" class="">rendrag@rendrag.net</a><span class="Apple-converted-space"> </span>- <a href="https://protect-au.mimecast.com/s/Ld1wBKUl1AwIG?domain=rendrag.net" target="_blank" style="color: purple; text-decoration: underline;" class="">http://www.rendrag.net/</a><u class=""><br class=""></u>--<br class="">We rode on the winds of the rising storm,<br class=""> We ran to the sounds of thunder.<br class="">We danced among the lightning bolts,<br class=""> and tore the world asunder<o:p class=""></o:p></p></div></div><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif; margin-bottom: 12pt;" class=""> <o:p class=""></o:p></p><pre style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: 'Courier New';" class="">_______________________________________________<o:p class=""></o:p></pre><pre style="margin: 0cm 0cm 0.0001pt; 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