disk image is incompatible with this system

[Donny Jekels]

I imported a volume group on 11i.v1 that was previously exported from 11i.v2.

now I try to mount it and it fails.

vxfs mount: /dev/itanium/lvol1 disk image is incompatible with this system

any ideas, before I open a call with HP CSS?

[Sridhar Bhaskarla]

Hi,

What's the JFS versions on v2 and v1 and how were the filesystems created on v2?. I haven't worked on itaniums yet but I believe the ones you are importing are of higher version than your 11.v1 can recognize.

-Sri

[Donny Jekels]

i don't have access to the itanium box anymore, it was a loaner from hp.

[Sridhar Bhaskarla]

Hi Donny,

11iV1 -> JFS Version 4

11iv2 -> JFS Version 5

The filesystem created with Version 5 are not compatible to lower versions. However, filesystems with lower versions can be mounted on 111v2 systems.

I don't know if "Itanium to Pa-Risc" is playing a role here in addition to the version mismatch.

Run

'fstyp -v /dev/itanium/lvol1' and
'fstyp -v /dev/vg00/lvol3' and note the Versions.

-Sri

[Donny Jekels]

is there no patch available to assist with this shortcomming?

[Patrick Wallek]

I don't think there is going to be much you can do. I wouldn't call your problem a "shortcoming" if the problem is indeed JFS v4 vs. JFS v5.

If that is truly the case, I think you are going to be out of luck. The latest version of JFS for 11.11 is JFS 4, which I believe is part of VxFS 3.3 and VxFS 3.5. I hope you have a good backup and that it won't take too long to restore the data.

[Sridhar Bhaskarla]

Hi Donny,

I could advise you to install Veritas Filesystem 3.5 (version 5) by getting it from software.hp.com but rather I shouldn't.

I was checking the release notes

http://docs.hp.com/hpux/onlinedocs/5990-6737/5990-6737.html

Disk and File Management -> VERITAS File System (VxFS) 3.5

While the release notes doesn't say if the default layout is 4 or 5, it does say Version 5 enables bla..bla.. I know the layout is 4 on 11i but still need to confirm if the default layout on v2 is 5.

Even if it is, if the issue is due to compability between Pa-Risc and Itanium, then installing the product would be of no good.

So, if I were you, I would be very careful.

BTW, what did you get when you run 'fstyp -v /dev/itanium/lvol1' command?

-Sri

[Donny Jekels]

I looks like I am out of luck.

However for those interrested. HP support engineer told me if we have a need to float vg's (export & import) between 11i.v1 and 11i.v2 then we should create those filesystems with ver 4.

mkfs -F vxfs -o version=4 /dev/vgXX/lvolXX

I don't see a need for this in our environment.

Thanks for all your support.
Donny