[AusNOG] NextDC Melbourne - Scheduled Power Maintenance -, 15th August

[Chad Kelly]

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


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 
> <mailto:jared.hirst at serversaustralia.com.au>
> ------------------------------------------------------------------------
> *From:* AusNOG <ausnog-bounces at lists.ausnog.net> on behalf of Mark 
> Newton <newton at atdot.dotat.org>
> *Sent:* Friday, August 11, 2017 4:54:10 AM
> *To:* Nathan Brookfield
> *Cc:* ausnog at lists.ausnog.net; 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> 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] On Behalf Of 
> Chad Kelly
> > Sent: Thursday, August 10, 2017 2:54 PM
> > To: ausnog at lists.ausnog.net; 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 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
Web www.cpkws.com.au

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