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Service Disruption: MiStorage Silver (Value Storage) Maintenance

December 2 @ 10:00 pm - December 3 @ 7:00 am

The ITS Storage team will be applying an operating system patch on the MiStorage Silver (Value Storage) environment, which provides home directories for both Flux and Flux Hadoop.  The ITS maintenance window will be from December 2nd 11:00pm to December 3rd 7:00am (8 hours total) and ARC-TS will prepare Flux, Armis, and Flux Hadoop for the maintenance starting at 10:00pm.  This update might be potentially disruptive to the stability of the nodes and jobs running on them.

The ITS status page for this incident is here:  http://status.its.umich.edu/report.php?id=141155

For Flux and Armis users: we have created a reservation on Flux so no jobs will be running or impacted.  We will remove the reservation after we receive the update from the ITS storage team of a successful update.

For Flux Hadoop users:  The scheduler and user logins will be deactivated when the outage starts, and any user currently logged into the cluster will be logged out for the duration of the outage.  We will reactivate access when we have received the all-clear from the ITS storage team of a successful update.

Status updates will be posted on the ARC-TS Twitter feed: https://twitter.com/arcts_um  and if you have any questions, please email us at hpc-support@umich.edu.

Details

Start:
December 2 @ 10:00 pm
End:
December 3 @ 7:00 am
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