JFS disk layout upgrade fro 3 to 4

[Neil Harris]

Hi folks

We are runing JFS 3.3 with layout 3 on 11.00. We also have onlineJFS. We wish to know can we upgrade to layout 4, so we can make full use of the facilities of onlineJFS.

Neil

[James R. Ferguson · Accepted solution]

Hi Neil:

# /usr/sbin/vxupgrade -n 4 /mount_point

Regards!

...JRF...

[Helen French]

Hi Neil:

Yes you can do that ! Check the command - vxupgrade and this thread:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x85637d4cf554d611abdb0090277a778c,00.html

HTH,
Shiju

[George A Bodnar]

Use the vxupgrade.

Do a "man vxupgrade" and read the warnings because there are some things you need to consider on an 11.0 system.

Once you hit 11i JFS 3.3 is the default and the limitations go away.

[James R. Ferguson]

Hi (again) Neil:

One addition comment/caution. Since you are on 11.0, do *not* upgrade /var or /opt. These are not supported by the recovery media in 11.0. Neither can you upgrade the root (/) filesystem or /usr. Remember, too, that once you have moved from version 3 to 4, there is no return path.

Regards!

...JRF...

[Neil Harris]

Smiles thanks for that James, I was not going to touch the core file systems. I have a minor problem with a couple of lvols on disk dedicated to oracle which onlineJFS will solve if they are layout 4.