Scheduled Maintenance

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Scheduled Maintenance of OSCER Systems

We periodically schedule maintenance outages to perform preventative tasks to keep the systems running smoothly. The entire system will be taken offline during an outage and you will not be able to access the system or submit jobs. We notify all OSCER users via e-mail in advance of an upcoming maintenance outage.

Upcoming Scheduled Outages

There are currently no scheduled outages.

Past Scheduled Outages

Date	Maintenance Tasks
July 31, 2019	Upgrade the file system on home1 and home2 Perform routine maintenance on scratch servers
May 30, 2019	Increase RAM for the SLURM virtual machine Increase RAM for the LDAP virtual machine Upgrade firmware on all network switches Re-stack core network switches Standardize card versions across the cluster
April 11, 2019	Address performance issues with the high performance file system affecting very large scale jobs
January 30, 2019	Apply security patches
December 5, 2018	Maintenance tasks on the scratch file system Apply new configurations to the job scheduler (Slurm)
August, 22, 2018	Apply patches and firmware upgrades
July 25, 2018	Replace bad memory in one of the cluster virtualization nodes
April 25, 2018	Add metadata drivers to LUSTRE file system Deploy ZFS compression on NFS scratch servers 1 & 2
April 4, 2018	Apply security patch to the job scheduler (SLURM) Update firmware across the cluster
January 31, 2018	Upgrade the job scheduler (SLURM) to the latest version
January 5, 2018	Patch the Operating System to address the Meltdown security vulnerability
December 13, 2017	Upgrade firmware on Schooner's Ethernet switches
November 29 & 30, 2017	Upgrade LUSTRE scratch system version & firmware
September 6, 2017	Apply firmware upgrades to scratch and /home servers Apply kernel updates to scratch and /home servers Upgrade the job scheduler (SLURM)
June 21, 2017	Increase amount of scratch storage space
March 22, 2017	Apply critical kernel updates to address security vulnerabilities Upgrade the job scheduler (SLURM) to the latest version Re-cable several nodes in the cluster
December 14, 2016	Maintenance of Lustre (fast scratch)
September 28, 2016	Replace battery for storage controllers Apply firmware upgrades to Schooner disk drives
July 20, 2016	IB Core Split Re-cabling Fix IP v6 Addressing DTN Nodes SLURM PAM Tape Backups
June 22, 2016	IB Core Recable Firmware updates on support nodes Enable slow scratch Cable PDU MGMT ports Repair GID 9999