How to modify file system layout ?

[j773303]

OS: 11.23

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

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

[Devender Khatana · Accepted solution]

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

[Joseph Loo]

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.

[Devender Khatana]

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

[Adisuria Wangsadinata_1]

Hi,

The answer is NO.

The disk layout versions cannot be downgraded.

Hope this information can help you.

Cheers,
AW

[Sivakumar TS]

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

[Arunvijai_4]

Downgrade is not possible with VXFS.

-Arun