[AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August
Matt Perkins
matt at spectrum.com.au
Fri Aug 11 22:47:57 EST 2017
It would be really nice if the next DC engineer responsible posted a
nice Blog post with the technical details. The vacuum is causing more
damage then it's worth i would think at this point.
Matt.
On 11/8/17 10:34 pm, Chad Kelly wrote:
>
> Hi I did post the following link to the list the other day.
>
> http://www.ohsrep.org.au/faqs/ohs-reps-@-work-electrical-safety-/electrical-equipment-what-are-the-lawsguidelines
> but this could also just be a NextDC OH&S policy as well, as
> regulation from government in the tech space can be interesting as
> they are not always up to date with stuff.
>
>
>
> On 8/11/2017 10:05 PM, Sam Silvester wrote:
>> Hey Chad,
>>
>> That's a pretty general site you're pointing to.
>>
>> Could you possibly be a bit more specific? Clicked through a couple
>> of links on it but everything was very high level.
>>
>> As I noted elsewhere I am in SA but my employer is national so
>> keeping across all this is never a bad thing.
>>
>> Cheers,
>>
>> Sam
>>
>> On Friday, 11 August 2017, Chad Kelly <chad at cpkws.com.au
>> <mailto:chad at cpkws.com.au>> wrote:
>>
>> It comes under the Victorian Occupational Health and safety Act
>> 2004 from the bit of reading I did yesterday.
>>
>> https://www.worksafe.vic.gov.au/laws/ohs
>> <https://www.worksafe.vic.gov.au/laws/ohs>
>>
>>
>> On 8/11/2017 10:17 AM, Jared Hirst wrote:
>>> Mark,
>>>
>>> Totally agree. I would just like to know what law Simon was
>>> referring too?
>>>
>>> Regards,
>>>
>>> Jared Hirst
>>> Servers Australia Pty Ltd
>>> Phone: +61 2 8115 8801
>>> Email: jared.hirst at serversaustralia.com.au
>>> <javascript:_e(%7B%7D,'cvml','jared.hirst at serversaustralia.com.au');>
>>> ------------------------------------------------------------------------
>>> *From:* AusNOG <ausnog-bounces at lists.ausnog.net>
>>> <javascript:_e(%7B%7D,'cvml','ausnog-bounces at lists.ausnog.net');>
>>> on behalf of Mark Newton <newton at atdot.dotat.org>
>>> <javascript:_e(%7B%7D,'cvml','newton at atdot.dotat.org');>
>>> *Sent:* Friday, August 11, 2017 4:54:10 AM
>>> *To:* Nathan Brookfield
>>> *Cc:* ausnog at lists.ausnog.net
>>> <javascript:_e(%7B%7D,'cvml','ausnog at lists.ausnog.net');>;
>>> ausnog-request at lists.ausnog.net
>>> <javascript:_e(%7B%7D,'cvml','ausnog-request at lists.ausnog.net');>;
>>> Chad Kelly
>>> *Subject:* Re: [AusNOG] NextDC Melbourne - Scheduled Power
>>> Maintenance -, 15th August
>>> As someone who has run colo facilities before:
>>>
>>> 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.
>>>
>>> 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.
>>>
>>> Power work should be done during business hours, because it’s
>>> almost impossible to get emergency support or source replacement
>>> equipment out of hours.
>>>
>>> If it isn’t safe to take a power feed offline during business
>>> hours, then you (the customer) have a design problem to solve.
>>>
>>> - mark
>>>
>>>
>>>
>>>
>>> > On Aug 10, 2017, at 6:56 AM, Nathan Brookfield
>>> <Nathan.Brookfield at simtronic.com.au>
>>> <javascript:_e(%7B%7D,'cvml','Nathan.Brookfield at simtronic.com.au');>
>>> wrote:
>>> >
>>> > Chad,
>>> >
>>> > 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.
>>> >
>>> > I completely agree with your sentiment but the risk is not to
>>> be ignored especially during those times.
>>> >
>>> > Kindest Regards,
>>> > Nathan Brookfield (VK2NAB)
>>> >
>>> > -----Original Message-----
>>> > From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net
>>> <javascript:_e(%7B%7D,'cvml','ausnog-bounces at lists.ausnog.net');>]
>>> On Behalf Of Chad Kelly
>>> > Sent: Thursday, August 10, 2017 2:54 PM
>>> > To: ausnog at lists.ausnog.net
>>> <javascript:_e(%7B%7D,'cvml','ausnog at lists.ausnog.net');>;
>>> ausnog-request at lists.ausnog.net
>>> <javascript:_e(%7B%7D,'cvml','ausnog-request at lists.ausnog.net');>
>>> > Subject: Re: [AusNOG] NextDC Melbourne - Scheduled Power
>>> Maintenance -, 15th August
>>> >
>>> >
>>> >
>>> > On 8/10/2017 10:13 AM, ausnog-request at lists.ausnog.net
>>> <javascript:_e(%7B%7D,'cvml','ausnog-request at lists.ausnog.net');>
>>> wrote:
>>> >> From the latest update today, It appears that most of the
>>> works are
>>> >> being postponed for the time being
>>> >>
>>> >> 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 to
>>> the NextDC DataCentres which affect services.
>>> > 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.
>>> > 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.
>>> > 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.
>>> > 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.
>>> > Regards Chad.
>>> >
>>> > --
>>> > Chad Kelly
>>> > Manager
>>> > CPK Web Services
>>> > Phone 03 5273 0246
>>> > Web www.cpkws.com.au <http://www.cpkws.com.au>
>>> >
>>> > _______________________________________________
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>>
>> --
>> Chad Kelly
>> Manager
>> CPK Web Services
>> Phone 03 5273 0246
>> Webwww.cpkws.com.au <http://www.cpkws.com.au>
>>
>
> --
> Chad Kelly
> Manager
> CPK Web Services
> Phone 03 5273 0246
> Webwww.cpkws.com.au
>
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
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--
/* Matt Perkins
Direct 1300 137 379 Spectrum Networks Ptd. Ltd.
Office 1300 133 299 matt at spectrum.com.au
Level 6, 350 George Street Sydney 2000
Spectrum Networks is a member of the Communications Alliance & TIO
*/
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