vxupgrade after OS upgrade...

[Sheriff Andy]

Greetings,

We ran an update-ux from 11.0 to 11.11. Afterwards we have the following message in our syslog;

vmunix: msgcnt 11 vxfs: mesg 080: Disk layout versions older than Version 4 will not be
vmunix: supported in the next release. It is advisable to upgrade
vmunix: to the latest layout version now. See vxupgrade(1M) for
vmunix: information on upgrading a VxFS file system and see the
vmunix: VxFS Release Notes for information on disk layout support.

I noticed in other threads that on 11.0 systems that you are not to vxupgrade /, /var, /usr, /opt.

Does this apply for 11.11 as well?

Are there any filesystems that can not be vxupgraded on a 11.11 system?

What recommendations do you have when running the vxupgrade against a production system (besides running an ignite tape backup)?

[A. Clay Stephenson]

There are no equivalent restrictions for 11.11 so feel free to vxupgrade everything (except /stand). The entire process takes only seconds to complete and I have done it many times on live systems (after first doing my best to crash vxupgrade on a Sandbox) without incident.

The only "gotcha" that comes to mind is if you ever have to vgimport these filesystems back to an 11.0 box; unless you have OnlineJFS 3.3 installed on 11.0 then your filesystems will no longer be readable on 11.0.

[James R. Ferguson]

Hi Andy:

On 11i you can indeed update any of the vg00 filesystems to VxFS version-4. See the manpages for 'vxupgrade' for more details:

http://docs.hp.com/en/B2355-60127/vxupgrade.1M.html

The upgrade of the layout version occurs in just a few seconds, though paranoid administrators like a good backup (e.g. Ignite) for insurance. Besides, you do routine Ignite backups anyway, right? :-))

Regards!

...JRF...

[Sheriff Andy]

Thk you much for your responses,

Is there any limitation if I do a nfs mount?

On a 11.11 system, what is the highest vxfs version that I can go to?

Andy

[James R. Ferguson]

Hi:

On 11.11, JFS versino 3.3 or JFS version 3.5 will support a version-4 layout.

Regards!

...JRF...

[Sheriff Andy]

So version 4 is the highest that I can go with 11.11 OS and my Online JFS is 3.5?

Thx again,
andy

[James R. Ferguson · Accepted solution]

Hi (again) Andy:

> So version 4 is the highest that I can go with 11.11 OS and my Online JFS is 3.5?

That is correct. On HP-UX 11.11, VxFS 3.5 supports disk layout versions 2, 3 or 4.

At HP-UX 11.23, VxFS 3.5 only supports disk layout versions 4 and 5. Hence, it is advisable to migrate to layout version 4 for future mount capability.

Regards!

...JRF...