VxVM Data Migration

[raver_1]

Dear Gurus,

I am seeking your advice on the migration we are about to perform.

Currently, we are using S/W RAID 1/0 (VxVM Striped-Mirror) to manage our volumes that reside on a OLD ext storage.
Recently, we purchased a NEW ext storage that will be configured with H/W RAID1/0.

We planned to perform the migration using VxVM volume level mirroring and once they are in-sync, we will unmirror the OLD storage
My concern is that I do not want anymore S/W RAID after the migration since it is already RAIDed on the H/W level.
How can I remove the Striped-Mirror configuration for the volumes on the NEW storage?

Is there a way to backup the VxVM configuration so that I can revert if anything goes wrong?

I would appreciate if you guys could share with me the approach/commands to accomplish the above-mentioned.

Thank you.


Cheers,
raver

[Tom Ward_1]

Hello raver,

I've been through something similar on some Solaris boxes with Veritas. Normally you can't mirror striped to non-striped plexes. You can get around it by making a donar volume and using the plex from it. You'll be using the command line. The GUI doesn't support this.

Add the LUNs from the HW Raid to the disk group.

Make a new volume of the same size with the HW disk. Use vxprint -ht output to get the parameters that you need.

Remove the plex from the new volume and attach it to the old SW volume.

After they are mirrored up, remove the original plex that has the stripe.

Sorry I can't list the commands, but I don't have my notes now. I'd suggest you open a support call with Veritas or HP if you have support.

Regards,
Tom

[raver_1]

Thanks for the advice!