[Moller] [Jlab-scicomp-briefs] REMINDER of planned farm work this Thursday morning

[Bryan Hess]

This Thursday, August 8th 2019 starting at 8am there will be an interruption in some farm and ifarm services to bring four new Lustre storage servers into service. The following changes will be visible to farm and ifarm users:

  *   ifarm machines will be rebooted
  *   A reservation will be placed on the farm to pause it at 8am on that morning. Farm jobs scheduled to complete before that time will execute, others will be queued until the maintenance work is done.
  *   Once the filesystem changes are made the farm will be restarted. We do not anticipate this lasting past the morning.
  *   Some /cache areas will be repopulated after the change, but no files will be deleted unless they have been written to tape.
  *   The remaining CentOS 6 machine, ifarm1101, will be decommissioned. If you have CentOS 6 dependencies going forward, please submit an incident report to https://jlab.service-now.com<https://jlab.service-now.com/> and we will assist with the transition

After August 8th data will continue to be migrated from the old lustre filesystem to the new system in a series of steps coordinated with individual workgroups.

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