<!-- keep this as a security measure: * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.LCGAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.LCGAdminGroup #uncomment this if you want the page only be viewable by the internal people #* Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.LCGAdminGroup --> KeyWords: SysAdmin, [[Maintenance]] ---+!! Scheduled Downtime on 2010-09-06 Our Phoenix Cluster needs some maintenance operations that require a downtime. We will take the next maintenance window (first Monday of the month) to do them. It will start on Monday 6 at 9:30 and last until Monday 6 at 17:00. *All queues will be drained three days before*. We will reserve an scheduled downtime until Tuesday 7th at 17:00 for safety, but will open the queues and exit the downtime as soon as we check all the systems work properly. ---++!! Summary of interventions %TOC% ---++ Upgrade dCache version to 1.9.5-22 (FG, PF) dCache is still moving forward with the Golden Release that will be around for long time, and we want to be up-to-date. It solves a number of bugs, some may have already affected us, some may not. We will then upgrade the version from 1.9.5-19 to 1.9.5-22. That requires to shut down the service, but we will try to bring it up as soon as possible so that, even though we are in downtime, transfers from/to other sites still work. ---++ Upgrade of gLite to revision 18 (PF, FG) A new release of gLite is out, we want to upgrade all grid machines to the latest possible version. ---++ Upgrade to Lustre 1.8.4 (JT) A new version of Lustre is out. It solves a known bug in the MDS that has affected us. ---++ Upgrade the driver on the OSSs to access the JBots in Lustre (JT) Also, there is a new release of the driver that controls the disk controllers in the OSS's. We think that it may solve some stability issues with the disks. ---++ Update some host certificates (PF) The following certificates are about to expire: storage01-02, se01-28, *vobox, mon, ce01, arc01, and we will update them all. ---++ Enable Hyper-Threading on all WNs (ALL) And that requires also some work in Torque and Moab Will -- Main.PabloFernandez - 2010-08-30
MaintenanceForm
When
Monday 6, September 2010
Downtime required
yes
Done
no
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Topic revision: r2 - 2010-09-01 - PabloFernandez
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