[Vagnekman-users] Re: Information about Ekman service windows during the next two to three weeks

[lama at pdc.kth.se]

Hello,

an update as of 2009-08-21:

We have gotten enough, if not all, of the replacement CPUs.
We will go ahead with replacement, Monday morning (2009-08-24.)

regards,
lars/pdc-staff.
- - - 
> an update as of 2009-08-20:
>
> The trucks with CPUs will arrive tomorrow Friday, 2009-08-21.
>
> Replacement work can start by Monday morning, 2009-08-24.
>
> New scheduling block set to Monday morning (09:00.)
>
> $
> $ spstatus           # or spq
> [..]
> ---- System Actualities ----
>
> Note: All reserved between 2009-08-24/09:00:00 and 2009-08-25/09:00:00 (24h)
> $
> $
>
> When we consider the 'CPU replacement assembly lines' to work smooth
> and safe enough, we will re-enable parts of the system where CPUs
> already have been replaced. Please consider the 24hour duration
> indicated above an early approximate.
>
> regards,
> lars/pdc-staff.
> - - - 
>   [..]
>
>> there are unfortunatelly further delays in the delivery of CPUs.
>>
>> The start of the upgrade is postponed until Thursday morning.
>> This is reflected in the output of, i.e. spstatus or spq
>>
>> ekman$
>> ekman$ spstatus
>> [..]
>> ---- System Actualities ----
>>
>> Note: All reserved between 2009-08-17/09:00:00 and 2009-08-17/12:00:00 (3h)
>> Note: All reserved between 2009-08-20/09:00:00 and 2009-08-21/09:00:00 (24h)
>> ekman$
>>
>> No jobs are allowed to execute over the above reservations. The
>> above window(s) are not static. Once the upgrade work is flowing,
>> we will try to make a sub-set of the system available for jobs.
>>
>> We are sorry for the inconvenience.
>>
>> regards,
>> lars/pdc-staff.
>>
>>   [..]
>>
>>>> Due to delays in delivery of the CPUs the update schedule will be
>>>> revised as follows:
>>>> All replacements will be carried out between 17/8 and 21/8. We will
>>>> make an effort to keep as many nodes as we can available during the
>>>> upgrade but there may be as few as about 230 nodes available during
>>>> that period (these 230 nodes were upgraded the last week).
>>>> Also - Please note that from now until all nodes has been updated
>>>> Ekman will contain nodes with two different CPU's. We expect the
>>>> performance difference to be very small but you should still be aware
>>>> that there may be some. If you want to know the cpu version on the
>>>> node you are running on you can always do:
>>>> grep "model name" /proc/cpuinfo | sort --unique
>
>   [..]
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