We have a tech on site tomorrow morning in Brisbane to do live works on a major DC panel, they need a look out with a torch, insulating matting and a few other things but it's legal. James
On Thu, 10 Aug 2017, at 16:04, Sam Silvester wrote: > I also am unaware of such a law. Simon, can you advise? > > I'm told in QLD that live works are not permitted, but I am in SA so I > have not really bothered too much to check if that is hearsay or true.> > On Thursday, 10 August 2017, Jared Hirst > <jared.hi...@serversaustralia.com.au> wrote:>> >> Hi Simon, >> >> Maybe it could be helpful to the Ausnog list to point us to that law >> you refer too?>> >> As I personally have never heard or seen this done in any DC in >> Australia, or the world in the past 15 years I have been housing gear >> in Data Centres.>> >> I agree that gear should have 2N, and it doesn’t affect me, but there >> are people that have equipment that have single fed devices, and I >> believe you don’t allow self installed STS devices to be installed? I >> could be wrong.>> >> In any case, it would be interesting to see the law the requires you >> to shut down boards.>> >> Regards, >> >> Jared Hirst >> Servers Australia Pty Ltd >> Phone: +61 2 8115 8801 >> Email: jared.hi...@serversaustralia.com.au >> >> *From:* AusNOG <ausnog-boun...@lists.ausnog.net> on behalf of Simon >> Cooper <s...@inbox.com> *Sent:* Thursday, August 10, 2017 8:39:13 AM >> *To:* ausnog@lists.ausnog.net *Subject:* Re: [AusNOG] NextDC >> Melbourne - Scheduled Power Maintenance - 15th August>> >> Thanks guys, appreciate the feedback. >> >> 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.>> >> 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.>> >> 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.>> >> 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).>> >> 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.>> >> 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.>> >> Thanks, >> Simon >> COO, NEXTDC >> >>> -----Original Message----- >>> *From:* nat...@nightsys.net >>> *Sent:* Thu, 10 Aug 2017 05:39:02 +1000 >>> *To:* sh...@rackcentral.com >>> *Subject:* Re: [AusNOG] NextDC Melbourne - Scheduled Power >>> Maintenance - 15th August>>> >>> 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).>>> >>> 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?>>> >>> 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?>>> >>> 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)>>> >>> Nathan. >>> >>> On Wed, Aug 9, 2017 at 3:43 PM, Shaun McGuane >>> <sh...@rackcentral.com> wrote:>>> >>>> Here is the entire scheduled maintenance windows for all the halls >>>> we occupy.____>>>> __ __ >>>> DataHall 2____ >>>> A Feed - Tuesday 8th August 2017 07:00 UTC +10 until 16:00 UTC +10. >>>> B Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC >>>> +10.____>>>> __ __ >>>> DataHall 3____ >>>> A Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC +10 >>>> B Feed - Monday 14th August 2017 07:00 UTC +10 until 16:00 UTC >>>> +10____>>>> __ __ >>>> DataHall 4____ >>>> >>>> B Feed - Tuesday 15th August 2017 07:00 UTC +10 until 16:00 UTC >>>> +10.____>>>> __ __ >>>> >>>> __· __So looks like no power on 3 data halls B feeds on the >>>> same day. ____>>>> __· __Data Hall 2 was scheduled for A rail on >>>> the 8th of >>>> August but has been re-scheduled with no new date of works.____>>>> __· >>>> __Data Hall 3 was scheduled for A rail on the ____ >>>> __ __ >>>> Problem is that I have 3x separate dates on 3 separate e-mails for >>>> Data Hall 3 and I have requested a revised clarification ____>>>> Just now >>>> on the above as there has already been re-schedules for >>>> Data Hall 2 and 3.____>>>> __ __ >>>> This feels like it’s going sideways and it has not even >>>> started.____>>>> __ __ >>>> Regards____ >>>> Shaun____ >>>> __ __ >>>> __ __ >>>> *From:* AusNOG [mailto:ausnog-boun...@lists.ausnog.net] *On Behalf >>>> Of *Murat Sener *Sent:* Wednesday, 9 August 2017 3:20 PM *To:* >>>> Matthew VK3EVL <hit...@itglowz.com>; ausnog@lists.ausnog.net>>>> >>>> *Subject:* Re: [AusNOG] NextDC Melbourne - Scheduled Power >>>> Maintenance - 15th August____>>>> >>>> __ __ >>>> 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.____>>>> __ __ >>>> __ __ >>>> __ __ >>>> ____ >>>> *Murat Sener* Datacentre Manager____ >>>> *PREMIER* Technology Solutions *P. *1300 76 76 48 *F. *1300 76 >>>> 76 49 *M. *0450 604 350 ____>>>> __ __ >>>> *How am I doing? Let us know!* SIMPLY CLICK ON A FACE TO GIVE >>>> FEEDBACK ____>>>> *GREAT____* >>>> *AVERAGE____* >>>> *BAD____* >>>> ____ >>>> ____ >>>> ____ >>>> __ __ >>>> *From:* AusNOG [mailto:ausnog-boun...@lists.ausnog.net] *On Behalf >>>> Of *Matthew VK3EVL *Sent:* Wednesday, 9 August 2017 3:13 PM *To:* >>>> ausnog@lists.ausnog.net *Subject:* Re: [AusNOG] NextDC Melbourne - >>>> Scheduled Power Maintenance - 15th August____>>>> __ __ >>>> What about both feeds happening on the same day at the same >>>> time?____>>>> __ __ >>>> On 9/08/2017 2:55 PM, Shaun McGuane wrote:____ >>>>> HI Damien,____ >>>>> ____ >>>>> My apologies that’s correct – but isn’t anyone concerned about the >>>>> works being completed during business hours?____>>>>> What about >>>>> increased loading of the active rail once one of them >>>>> is switched off for these works?____>>>>> ____ >>>>> Regards____ >>>>> Shaun____ >>>>> ____ >>>>> ____ >>>>> *From:* Damien Gardner Jnr [mailto:rend...@rendrag.net] *Sent:* >>>>> Wednesday, 9 August 2017 2:39 PM *To:* <ausnog@lists.ausnog.net> >>>>> <ausnog@lists.ausnog.net>; Shaun McGuane <sh...@rackcentral.com> >>>>> *Subject:* Re: [AusNOG] NextDC Melbourne - Scheduled Power >>>>> Maintenance - 15th August____>>>>> ____ >>>>> It says 7am -> 4pm in what you quoted? (UTC+10 is AEST)____ >>>>> ____ >>>>> On Wed, 9 Aug 2017 at 2:36 pm, Shaun McGuane >>>>> <sh...@rackcentral.com> wrote:____>>>>>> HI Noggers,____ >>>>>> ____ >>>>>> Has anyone seen this scheduled maintenance notification happening >>>>>> next week?____>>>>>> They maybe upgrading feeds or boards throughout the >>>>>> datacentre – >>>>>> has everyone seen this notification of works?____>>>>>> It appears to be >>>>>> happening starting 5PM through to 2AM AEST for >>>>>> all Datahalls on the same date.____>>>>>> ____ >>>>>> ____ >>>>>> *WHAT:* >>>>>> 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. >>>>>> >>>>>> *WHEN:* A Feed - Tuesday 15th August 2017 07:00 UTC +10 until >>>>>> 16:00 UTC +10. B Feed - Tuesday 15th August 2017 07:00 UTC +10 >>>>>> until 16:00 UTC +10.>>>>>> >>>>>> *HOW AM I AFFECTED?* 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:____>>>>>> ____ >>>>>> Regards____ >>>>>> Shaun____ >>>>>> ____ >>>>>> ____ >>>>>> ____ >>>>>> _______________________________________________ >>>>>> AusNOG mailing list >>>>>> AusNOG@lists.ausnog.net >>>>>> http://lists.ausnog.net/mailman/listinfo/ausnog____ >>>>> -- ____ >>>>> Damien Gardner Jnr >>>>> VK2TDG. Dip EE. GradIEAust >>>>> rend...@rendrag.net - http://www.rendrag.net/_ _-- >>>>> We rode on the winds of the rising storm, >>>>> We ran to the sounds of thunder. >>>>> We danced among the lightning bolts, >>>>> and tore the world asunder____ >>>>> >>>>> ____ >>>>> ___________________________________________________ >>>>> AusNOG mailing list____ AusNOG@lists.ausnog.net____ >>>>> http://lists.ausnog.net/mailman/listinfo/ausnog____>>>> __ __ >>>> >>>> MESSAGE PROTECTED BY *PREMIER TECHNOLOGY SOLUTIONS*[1] - POWERED >>>> BY *MAILGUARD*[2]. Report this message as spam[3] >>>> ____>>>> >>>> MESSAGE PROTECTED BY *PREMIER TECHNOLOGY SOLUTIONS*[4] - POWERED >>>> BY *MAILGUARD*[5]. >>>> ____>>>> >>>> _______________________________________________ >>>> AusNOG mailing list >>>> AusNOG@lists.ausnog.net >>>> http://lists.ausnog.net/mailman/listinfo/ausnog >>>> > _________________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net > http://lists.ausnog.net/mailman/listinfo/ausnog Links: 1. http://www.premiertech.com.au 2. http://www.mailguard.com.au/mg 3. https://console.mailguard.com.au/ras/1RqQHQIE5J/6DWUZjiMDnlts7JYyCLNB3/0 4. http://www.premiertech.com.au 5. http://www.mailguard.com.au/mg
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