VXFS

[Rodolph]

Hello ,

Is there any problem if I migrate FS with JFS 3.1 or JFS 2.xx towards FS in JFS 3.3 ?

[Hai Nguyen_1]

Rodolph,

I do not forsee any problem. However, you may want to read readme note, release note... to find out it you have to follow any specific procedure.
Good luck.

Hai

[Stefan Farrelly]

The migration is easy. The only possible problem is with installing JFS3.3 (if youre not on 11.11) as it requires a different license from HP in the US which takes time to get (unlike normally using a codeword).

[H.Merijn Brand (procura]

Be aware that older (unmaintained) OS's might not connect flawlessly after the upgrade anymore.

Here I had to disable all outgoing NFS connections for AIX-4.2, since it would hang for all transfers > 2kb :(

NFS-3 -> AIX-4.2 was OK

[Sajid_1]

hello,

this document will be helpful TKB - KBRC00004126 -
http://support1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000062390749

Once you upgraded, you cannot mount those filesystems with a vxfs prior release.

[Rodolph]

My question is :
i have a HP-UX with running a 10.20 with JFS 3.1 for example, a other HP-UX with running in 11.00 with JFS 3.3 for example.
Can I migrate FS from JFS3.1 vxfs to JFS 3.2 or 3.3 ? Or must I have JFS in the both servers the same revison of JFS ?

thanks .

[S.K. Chan · Accepted solution]

First 2 things (maybe you've already know this)..
- JFS version (eg 3.1, 3.3)
- JFS disk layout version (eg: 3, 4)
JFS disk layout version 4 (which comes default on 11.11 onwards) can only be used by JFS version 3.3
JFS disk layout version 3 (10.20 and 11.0) can be used by both JFS version 3.1 and 3.3
The dfference between JFS disk layout version 3 and 4 is that verwion 4 supports ACL that's it.

Now to answer your question ..
1) Yes you can migrate from JFS 3.1 to 3.3
2) No you don't have to have both on the same JFS version, they work just fine (10.20 with JFS 3.1 and 11.0 with JFS 3.3) but I would recommend the upgrade to 3.3 which performs better plus it supports ..
=> ACLs
=> Version 4 disk layout
=> vxtunefs (tuning JFS FS)

[Wodisch_1]

Hi Rodolph,

in addition to S.K.'s reply:
the commands to handle ACLs have changed, too!
For HP-UX 10.20 you had "lsacl" and "chacl", but with JFS3.3 you will have to use "getacl" and "setacl"...

HTH,
Wodisch