I have a customer who wants to use RAID disk mirroring as a backup strategy before upgrades are applied. i.e. pull a disk from the RAID array and replace it with a blank then remirror before the upgrade.
A few weeks ago I was reading a document on the Cisco web site that stated this was not supported. I want to show this documentto the customer but cannot find it. Can anyone provide a link to it?
work flow wise Cisco are probably stating it may not be needed now due to Partitioning with CUCM5/6/7 as you upgrade on the non-active Partition and in theory you have the DRS as well. However I`ve always pulled a disk at least on the Pub. before the upgrade just in case- power the pub off, pull out the disk A, power on again test disk, power off again push back disk A , pull disk B power up and test. Others may have other ideas
This isn't supported because it's not needed. The /partB partitioning within the appliance model makes this irrelevant. Also, current install scripts check the array health and size and may fail if the array shows degraded.
Also, the SAN/storage guys/gals I work with say "nothing causes array failures on SATA like a rebuild".
This seems like a waste of billable time. Take a DRS backup and ensure you have recovery media handy as your secondary recovery plan.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...