Maintenance2010x11x08 < LCGTier2

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KeyWords: SysAdmin, [[Maintenance]]

---+!! Scheduled Downtime on 2010-11-08

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. In this case, the first working Monday is the 8th.

It will start on Monday at 9:30 and last until Monday at 17:00.

*The queues will be drained 20 hours before*. We will reserve an scheduled downtime until Tuesday 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%

---++ Lustre Filesystem check (JT)

We have to do a fsck on Lustre to ensure consistency.

---++ Upgrade glibc libraries (PF)

On the rest of the nodes not applied yed, to fix a security hole. Then we will restart all machines.

---++ Upgrade torque client on Arc01/02 (PO)

The one which is installed doesn't want to work with a failed over lrms.

---++ Add a couple of roles to /ops mapping (PO) 

At the end they told us it should look like this:
<verbatim>"/ops/Role=NULL/Capability=NULL" .ops
"/ops/Role=lcgadmin" opssgm
"/ops/Role=lcgadmin/Capability=NULL" opssgm
"/ops/Role=pilot" .ops
"/ops/Role=pilot/Capability=NULL" .ops
"/ops/*" .ops   (matches also /ops/NGI/Germany) </verbatim>

-- Main.PabloFernandez - 2010-10-18