topic Re: How to modify file system layout ? in Operating System - HP-UX

How to modify file system layout ?

j773303 — Fri, 20 Jan 2006 00:58:09 GMT

OS: 11.23

Problem: As below, version is 6, is it possible modify to 4 ?

#fstyp -v /dev/vg00/lvol6
vxfs
version: 6

Re: How to modify file system layout ?

Devender Khatana — Fri, 20 Jan 2006 01:22:37 GMT

Hi,

No it is not possible.

Capture from "man vxupgrade"

Disk layout versions cannot be downgraded, for example, you cannot change a file system from disk layout version 4 to disk layout version

HTH,
Devender

Re: How to modify file system layout ?

Joseph Loo — Fri, 20 Jan 2006 01:23:27 GMT

hi,

is that not the VxFS 4.1 file system which employs Disk Layout Version 6? if so, why do u need to downgrade since it also supports version 4 and 5.

btw, did u apply a patch to upgrade from version 4 to 6?

regards.

Re: How to modify file system layout ?

Devender Khatana — Fri, 20 Jan 2006 01:24:37 GMT

Hi Again,

It got posted a bit earlier.

Disk layout versions cannot be downgraded, for example, you cannot change a file system from disk layout version 4 to disk layout version 3.

HTH,
Devender

Re: How to modify file system layout ?

Adisuria Wangsadinata_1 — Fri, 20 Jan 2006 01:25:32 GMT

Hi,

The answer is NO.

The disk layout versions cannot be downgraded.

Hope this information can help you.

Cheers,
AW

Re: How to modify file system layout ?

Sivakumar TS — Fri, 20 Jan 2006 01:39:53 GMT

Hi,

The vxupgrade command can upgrade an existing Version 3 VxFS file
system to the Version 4 layout while the file system remains online.
vxupgrade can also upgrade a Version 2 file system to the Version 3
layout. See vxupgrade(1M) for details on upgrading VxFS file
systems.You cannot downgrade a file system that has been upgraded.

The above is an extract from

http://docs.hp.com/en/B3929-90011/B3929-90011.pdf

Hope this helps,

Siva

Re: How to modify file system layout ?

Arunvijai_4 — Fri, 20 Jan 2006 01:41:51 GMT

Downgrade is not possible with VXFS.

-Arun