Replacing drive ..Veritas question

[dandan123]

I have a V440 with 4 drives. Two of the drives are mirrored boot drives. The other two are mirrored and used for a database.

I have to replace the database drives with higher capacity drives.

If I break the mirror and then replace one drive and then recreate the mirror will it come up properly ?

My plan -

Break mirror, replace one drive, recreate mirror, wait for syncronize to finish.
Break mirror, replace the other drive, recreate mirror.

Will this work ?

TIA.

Dan

 

[kHz]

Veritas has commands to move your data to a new disk. I am not in front of a server right now that I can run vxdiskadm, but the commands are there.

 

[dandan123]

This server has slots only for 4 drives, I cannot add more drives. I have to remove a drive and then plug in a new drive.

 

[allesmueller]

dandan123,

from my point of view this procedure should perfectly work ...

BUT:
if you want to do eveything online (database running)
there are drawbacks which come to mind:
* you'll have inconsitent data on the mirror you remove - if something goes wrong - you're lost :/

* you should remove the mirror and the disk from the vm-config, not breaking it by pulling the disk - otherwise you may end up with duplicate entries in "vxdisk list" and other problems

* Last point would be resize volume/filesystem, since the mirror always has the same size as the original

However:
you should do an cold backup of the DB before beginning

HTH,
allesmueller

 

[dandan123]

I'm only concerned about the veritas part.

The server will not be live when I'm making these changes. The database will be shut down.

 

[kHz]

Log onto sunsolve and search for "replace veritas disk" ; there are a number of documents.