Upgrade file systems from version 3 to 4 - using vxupgrade

[Amy Ng_2]

Is it safe to run vxupgrade command on a busy system? I found the following from HP support. Has anyone run this program while the database/application is still running?

The vxupgrade command can upgrade an existing Version 3 VxFS file system to the Version 4

layout while the file system remains online.

However there is also some risk involved and it would probably be best to do this after a backup is taken.

Thanks,
Amy

[James R. Ferguson]

Hi Amy:

The actual upgrade take only a few seconds. The manpages for 'vxupgrade(1M)' describe what happens and the caveats of doing a version change. See the notes in the manpages!

As with anything, if you want absolute safety, backup your filesystem beforehand.

http://docs.hp.com/en/B2355-60105/vxupgrade.1M.html

Regards!

...JRF...

[Steven E. Protter]

Shalom Amy,

HP says it is safe. I've done it in HP's labs a few times on busy systems and there was no negative impact

I would never do it on a production system, only after setting a maintenance window and having a backup of the filesystem to be upgraded.

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