topic Re: Moving Filesystems in Operating System - HP-UX

Moving Filesystems

Mike Smith_2 — Wed, 07 Apr 2004 08:52:44 GMT

Hello all,

I'm going to be relocating some data to newer disks. Normally I'd just use this to move them as I had done before...

find . ! -type c -exec cpio -pmud /newpath {} \;

However, what's different this time is that some files are much larger than 2GB, so I don't think cpio can do it.

Forgive me if this sounds basic, but how else would one do this?

Thanks in advance...

Re: Moving Filesystems

Geoff Wild — Wed, 07 Apr 2004 08:56:01 GMT

Try vxdump:

vxdump -0 -f - -s 1000000 -b 16 /oldpath| (cd /newpath ; vxrestore rf -) &

Rgds...Geoff

Re: Moving Filesystems

Sanjay Kumar Suri — Wed, 07 Apr 2004 08:57:03 GMT

I will recommend fbackup/frecover.

sks

Re: Moving Filesystems

Marco Santerre — Wed, 07 Apr 2004 08:58:34 GMT

Not sure if that could be in option in your case, but have you thought of pvmove. If you're moving a whole filesystem, you could do something like this :

vgextend vgname /dev/dsk/newdisk
pvmove -n /dev/vgname/lvname /dev/dsk/oldisk /dev/dsk/newdisk

hope this helps

Re: Moving Filesystems

Todd McDaniel_1 — Wed, 07 Apr 2004 09:00:01 GMT

IF they are the same size disks/LUNS.

I would add them to the same VG then mirror them and break the mirror...after they sync.

Re: Moving Filesystems

Mike Smith_2 — Wed, 07 Apr 2004 09:42:24 GMT

Thanks for all the quick replies...

I'll look into vxdump, fbackup, and pvmove.

I would use Mirrordisk, but the new volumes will be larger.

Re: Moving Filesystems

Mark Grant — Wed, 07 Apr 2004 09:46:31 GMT

It doesn't always matter if the new disks are larger. It depends how the volume group was created. If the max number of physical extents times the extent size gives you a figure larger than your new disks you can still use the mirror option.

Re: Moving Filesystems

RAC_1 — Wed, 07 Apr 2004 09:50:55 GMT

pvmove is restricted to moving data winthin VG.

If your files systems are within same VG, pvmove is OK. Otherwise you fback/frecover and vxdump option.

Anil