disagree.

Outside of business hours costs more with limited staff around to
assist. They're doing you a favour by doing this because if your PSU
fails on server, you'll have time raise tickets with vendor and get
same day resolution.


Regards,

Peter Tiggerdine

GPG Fingerprint: 2A3F EA19 F6C2 93C1 411D 5AB2 D5A8 E8A8 0E74 6127


On Thu, Aug 10, 2017 at 3:14 PM, Chad Kelly <c...@cpkws.com.au> wrote:
>
> Hmm yes actually deciding to do this during business hours does appear to be
> an odd choice, even with two PSU in the server, they would be better off
> doing this out of business hours I would of thought.
> Regards Chad.
>
>
> On 8/10/2017 2:56 PM, Nathan Brookfield 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-boun...@lists.ausnog.net] On Behalf Of Chad
>> Kelly
>> Sent: Thursday, August 10, 2017 2:54 PM
>> To: ausnog@lists.ausnog.net; ausnog-requ...@lists.ausnog.net
>> Subject: Re: [AusNOG] NextDC Melbourne - Scheduled Power Maintenance -,
>> 15th August
>>
>>
>>
>> On 8/10/2017 10:13 AM, ausnog-requ...@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
>>
>> _______________________________________________
>> AusNOG mailing list
>> AusNOG@lists.ausnog.net
>> http://lists.ausnog.net/mailman/listinfo/ausnog
>
>
> --
> Chad Kelly
> Manager
> CPK Web Services
> Phone 03 5273 0246
> Web www.cpkws.com.au
>
> _______________________________________________
> AusNOG mailing list
> AusNOG@lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
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