[evla-sw-discuss] [ngas-alerts] Upgrade EVLA Lustre clients Tomorrow

[Vivek Dhawan]

CBE is back up, but Kerry still has WIDAR under maintenance. I'll send
an email after I get to use the system.

On Wed, February 22, 2017 10:57, K. Scott Rowe wrote:
| Everything is back up.  Please let me know if you see any problems.
|
| I had to power cycle cbe-node-16 and cbe-node-21 but otherwise the CBE cluster
| rebooted correctly and is now using the new lustre-2.4.3 client.
|
| nmngas01 was apparently injesting a 30GB VLBA file when I rebooted it.
| Because of this it tried to move it to the bad-files area which is on
| / and does not have enough space for a 30GB file.  Stephan moved this
| file to Volume30 for now and John will look into putting it where it
| really belongs.  In the future, the procedure should be to stop
| injestion before rebooting these machines.
|
| mctest and mcahmmer came up without issue but last time we upgraded
| them I think Bryan had to start some process.  Does anyone know what
| that might be?
|
|
| On Feb 21 08:30, K. Scott Rowe wrote:
| }Two weeks ago, I switched all the machines that mount the EVLA Lustre
| }system to the new EVLA lustre system.  I did not upgrade the version
| }of Lustre on these machines.  I specificly wanted that to be a
| }seperate step in case we had to roll back and because this step takes
| }some time.  Now I am ready to upgrade the version of Lustre on these
| }machines.
| }
| }This process involves:
| } - Upgrade mchammer and mctest from RHEL6.7 to RHEL6.8. ~2 hours
| } - Upgrade the Lustre client on nmngas01 and nmngas02 ~30 minutes
| } - Upgrade the Lustre client on cbe-master and cbe-node-* ~30 minutes
| }
| }The whole process should take about 3 hours.  It will require a reboot
| }of every machine listed above.
| }
| }I would like to do this on Feb. 22 starting about 9am and probably
| }finishing around noon.  Please let me know if this is unaccaptable for
| }any reason.
| }
| }Thanks
| }
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