The next regular scheduled maintenance day for CSCS systems is Wednesday September 7th.
On that day the following systems will be affected, with the expected downtimes as indicated:
* Front-end system:
Ela: no maintenance scheduled
* Cray XT5:
Rosa: 10:00 – 12:00 HW and SW upgrade
* Cray XE6:
Palu: 08:00 – 18:00 Intervention on the Metadata. All data on /scratch are at risk
* Viz and post-processing:
Eiger: 08:00 – 12:00 SW upgrade
Rigi: 08:00 – 12:00 SW upgrade
Julier: 10:00 – 11:30 No specific maintenance however it will be affected by the intervention on IB
* File System and Storage:
/home , /apps, /project: 10:00- 11:30 might experience short interruptions due to the
maintenance on IB
* Network:
10:10 – 11:20 IB maintenance .
IMPORTANT:
Be aware that beginning on Wednesday, the /scratch file system on
JULIER will be regularly cleaned of old data. We will apply the same cleaning policy
currently on rosa and palu. That is all files that are older than 30 days will be deleted.
The cleaning script runs every Sunday.
In the event that cleaning files older than 30 days still leaves the file
system filled to greater than 60% of its capacity, CSCS staff will take
further steps to free up space, and in particular we will begin by focusing
on the largest users of the /scratch file system.
Please note that scratch file systems are intended to be used for
temporary storage while a job is running, and important data should
be copied onto alternative storage facilities as soon as a job has completed.
Additionally, we are monitoring the usage of the “touch” command both on rosa
and palu. Please note that anyone found to be using this or any other commands
to prevent the cleaning policy and to keep using /scratch for long-term storage
will face serious consequences and will not be allowed to run any jobs for the
remainder of the allocation period.
Tags: Maintenance, Systems