[Sigma-users] Sigma compute nodes down

Mats Kronberg kronberg at nsc.liu.se
Tue Jan 14 09:43:00 CET 2020


All Sigma compute nodes are now available.

//Mats


Mats Kronberg <kronberg at nsc.liu.se> writes:

> Dear Sigma users,
>
> Due to a partial power failure (one of three power subcentrals powering
> Tetralith and Sigma), most compute nodes in Sigma (all 104 "thin" nodes)
> went offline at 05:10 today.
>
> All running jobs on these nodes failed.
>
> Until power is restored to these compute nodes, only the four "fat"
> compute nodes and the Sigma login node are available.
>
> Estimated downtime: 4h (best case - after a quick inspection we press
> the reset switch on the subcentral and boot the nodes) to 1-2 days
> (something is damaged and we need to make repairs or move some compute
> nodes from Tetralith to Sigma).


-- 
Mats Kronberg
National Supercomputer Centre (NSC)


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