[Solid_software] Fwd: [Jlab-scicomp-briefs] REMINDER of planned farm work this Thursday morning

[Zhiwen Zhao]

Dear All

Any files on /cache now may need to be fetched from tape again after the 
change tomorrow

Zhiwen


-------- Forwarded Message --------
Subject: 	[Jlab-scicomp-briefs] REMINDER of planned farm work this 
Thursday morning
Date: 	Tue, 6 Aug 2019 19:25:08 +0000
From: 	Bryan Hess <bhess at jlab.org>
To: 	jlab-scicomp-briefs at jlab.org <jlab-scicomp-briefs at jlab.org>



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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