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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi Simon,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thank you for getting back to the group we appreciate your input
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D;mso-fareast-language:EN-US">J</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">We are aware of the legal requirement to complete the checks every 5 years. Generally as we have seen in the industry
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">thermals are taken of the boards to check for any hot spots which are then rectified, by a means of a maintenance window.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">If the hot spot is behind a breaker or within a breaker then an outage is a requirement to either replace the breaker or tighten
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Any loose connections, however if bus bars need to be tightened we have seen many cases of these being completed live using<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">the appropriate OH&S safety equipment and Safe Work Method Statement.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">For sake of clarification, and from what you have explained, NextDC seem to be taking the safe route by de-energising
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The boards rather than work on them live. Is this because the design of the boards does not allow enough room for a
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">safe work space and you deem this an OH&S high risk?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The law component is the actual testing and not the outage itself.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Kind Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Shaun McGuane<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Simon Cooper [mailto:simon.cooper@nextdc.com]
<br>
<b>Sent:</b> Friday, 11 August 2017 11:14 PM<br>
<b>To:</b> Shaun McGuane <shaun@rackcentral.com><br>
<b>Cc:</b> ausnog@lists.ausnog.net<br>
<b>Subject:</b> RE: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi Shaun,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Happy to clarify, and sorry it’s taken me a while to get back to the group.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Under the Electrical Safety Act compliance with AS3000 is mandatory.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Under AS3000, and specifically AS3439, the owner of an electrical system (NEXTDC in this case) is responsible to institute a system of maintenance
(aka planned maintenance program). Through that system the manufacturers recommendations should be addressed as well as the recommendations of AS2467. It specifically goes on to state that “Doing so will minimise the risk of injury or breakdown and any
consequent human suffering and/or loss of supply.”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">AS2467 suggests that indoor switchgear be examined (examination is more than inspection) at 5 year intervals. Examination includes ensuring that
bus mounts and restraints are adequately torqued.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Typical circuit breakers O&M manual advise that the devices are examined and tested in their 5<sup>th</sup> year of operation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Clearly complying to the above is best practice. Equally, no responsible owner would want to be in the position of having failed to comply, then
to have something happen and have to explain how they had made all reasonable efforts to mitigate risk.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">In order to comply, both to examine the switchgear and to complete the circuit breaker manufacturer’s advice, the switch board needs to be de-energised.
WH&S practises dictate this, as do other parts of AS3000. There are certain circumstances under which work can be done on or near live boards, and certainly inspection is one of those – but examination is not and neither is testing a circuit breaker.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Not quite as punchy as one of the ten commandments, but fundamentally - it’s all based on safety.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Trust that helps. As mentioned earlier, happy to discuss offline. Have a great weekend everyone.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Simon Cooper</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><br>
Chief Operating Officer<br>
Direct: +61 7 3177 4721<br>
Mobile: +61 488 235 624<br>
Email: <a href="mailto:simon.cooper@nextdc.com">simon.cooper@nextdc.com</a><br>
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:red">NEXT</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#606060">DC
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">(ASX: NXT)<br>
</span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:red"><a href="http://www.nextdc.com">www.nextdc.com</a></span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Shaun McGuane [<a href="mailto:shaun@rackcentral.com">mailto:shaun@rackcentral.com</a>]
<br>
<b>Sent:</b> Friday, 11 August 2017 4:58 PM<br>
<b>To:</b> Simon Cooper <<a href="mailto:simon.cooper@nextdc.com">simon.cooper@nextdc.com</a>><br>
<b>Cc:</b> <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a><br>
<b>Subject:</b> RE: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi Simon,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">For the sake of clarification and not to question NextDC’s position, would you mind sharing with us the
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Explanation of the Law that you are referring to with your response from yesterday?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">As if you are the only datacentre following this law then others need to follow suite and it would be good<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">To understand if something is not being done that other providers are legally bound to do.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Kind Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Shaun McGuane<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net">mailto:ausnog-bounces@lists.ausnog.net</a>]
<b>On Behalf Of </b>Jared Hirst<br>
<b>Sent:</b> Friday, 11 August 2017 10:17 AM<br>
<b>To:</b> Mark Newton <<a href="mailto:newton@atdot.dotat.org">newton@atdot.dotat.org</a>>; Nathan Brookfield <<a href="mailto:nathan.brookfield@simtronic.com.au">nathan.brookfield@simtronic.com.au</a>><br>
<b>Cc:</b> <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a>; <a href="mailto:ausnog-request@lists.ausnog.net">
ausnog-request@lists.ausnog.net</a>; Chad Kelly <<a href="mailto:chad@cpkws.com.au">chad@cpkws.com.au</a>><br>
<b>Subject:</b> Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August<o:p></o:p></span></p>
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<p class="MsoNormal">Mark,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Totally agree. I would just like to know what law Simon was referring too?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<br>
<br>
Jared Hirst<br>
Servers Australia Pty Ltd<br>
Phone: +61 2 8115 8801<br>
Email: <a href="mailto:jared.hirst@serversaustralia.com.au">jared.hirst@serversaustralia.com.au</a><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> AusNOG <<a href="mailto:ausnog-bounces@lists.ausnog.net">ausnog-bounces@lists.ausnog.net</a>>
on behalf of Mark Newton <<a href="mailto:newton@atdot.dotat.org">newton@atdot.dotat.org</a>><br>
<b>Sent:</b> Friday, August 11, 2017 4:54:10 AM<br>
<b>To:</b> Nathan Brookfield<br>
<b>Cc:</b> <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a>; <a href="mailto:ausnog-request@lists.ausnog.net">
ausnog-request@lists.ausnog.net</a>; Chad Kelly<br>
<b>Subject:</b> Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August</span>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt">As someone who has run colo facilities before:<br>
<br>
It should be made completely clear during customer onboarding that the facility operator can temporarily shut down a power feed at any time. Advance warning should be desirable but optional.<br>
<br>
If there is risk involved in doing that, it’s your job to mitigate it. The facility operator doesn’t know which bits of equipment in your tenancy are critical, and they’ve already told you to dual-feed where possible and use a rack-mount ATS for single-corded
equipment.<br>
<br>
Power work should be done during business hours, because it’s almost impossible to get emergency support or source replacement equipment out of hours.<br>
<br>
If it isn’t safe to take a power feed offline during business hours, then you (the customer) have a design problem to solve.<br>
<br>
- mark<br>
<br>
<br>
<br>
<br>
> On Aug 10, 2017, at 6:56 AM, Nathan Brookfield <<a href="mailto:Nathan.Brookfield@simtronic.com.au">Nathan.Brookfield@simtronic.com.au</a>> wrote:<br>
> <br>
> Chad,<br>
> <br>
> That's all well and good but when you're paying a premium price for services of this fashion you expect a certain level of service. There is a risk no matter what when switching from power supplies taking extra load they would not usually take as well as
swing load issues with PDU's.<br>
> <br>
> I completely agree with your sentiment but the risk is not to be ignored especially during those times.<br>
> <br>
> Kindest Regards,<br>
> Nathan Brookfield (VK2NAB)<br>
> <br>
> -----Original Message-----<br>
> From: AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net">mailto:ausnog-bounces@lists.ausnog.net</a>] On Behalf Of Chad Kelly<br>
> Sent: Thursday, August 10, 2017 2:54 PM<br>
> To: <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a>; <a href="mailto:ausnog-request@lists.ausnog.net">
ausnog-request@lists.ausnog.net</a><br>
> Subject: Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August<br>
> <br>
> <br>
> <br>
> On 8/10/2017 10:13 AM, <a href="mailto:ausnog-request@lists.ausnog.net">ausnog-request@lists.ausnog.net</a> wrote:<br>
>> From the latest update today, It appears that most of the works are <br>
>> being postponed for the time being<br>
>> <br>
>> Not all devices within racks support 2 feeds and planning is involved <br>
>> with these devices, which is why it is crucial to receive accurate information about any pending outages or upgrades to the NextDC DataCentres which affect services.<br>
> If these services are mission critical then you really should have duel PSU units, so that when one feed gets taken offline the equipment automatically switches to the other feed. They won't just disconnect both feeds at once because that would be stupid
and if the entire DC was offline for too much time then that would put the owners in a rather awkward situation legally, as after say 8 or 10 hours of downtime it wouldn't be good for the owners lets put it that way.<br>
> If the single PSU units are a part of a customers co-located equipment then really your terms of service agreement should exclude liability under your maintenance clauses.<br>
> I don't understand why anyone would be using single PSU equipment in a DC environment now a days when you can buy refurbished servers that come with two PSU as standard even when you buy them without raid.<br>
> Also for anything that is really really mission critical you should have it hosted in multiple datacentres anyway so if something stupid does happen that you can't control you at least still have services online as the load balanced services would just switch.<br>
> Regards Chad.<br>
> <br>
> --<br>
> Chad Kelly<br>
> Manager<br>
> CPK Web Services<br>
> Phone 03 5273 0246<br>
> Web <a href="http://www.cpkws.com.au">www.cpkws.com.au</a><br>
> <br>
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