SUMMARY: Replacing disks in DiskSuite

From: Anthony Firmin <>
Date: Mon Oct 13 2003 - 08:29:26 EDT
Sorry I am late in sending out this summary.

Firstly, many thanks to all those who responded.

Due to my lack of experience with SDS I bottled out of that option and went
for what I thought was the easy option!!

As we use ufsdump to back up the disk I decided the quickest and easiest way
to carry out what I needed to do was...

Ensure backup was okay
Shutdown server
Replace both 36GB disks with 72GB disks
Boot from CDROM
Format the disks
Restore from the ufsdump
Reboot from disk

It all went to plan until I rebooted from the disk after the restore.  It
didn't seem to recognise the disks.  After several hours of frustration and
a few glasses of wine in the evening I realised that I needed to update the
/etc/path_to_inst file.  So the next morning I deleted it along with the
contents of the /dev/ and /devices directories, ran devfsadm -r / and then
did a boot -a and it all came up beautifully.

Brought the primary disk partitions into SDS and then created the mirrors.
Worked a treat.

Cheers to everyone,


-----Original Message-----
From: David Stempnakowski []
Sent: 06 October 2003 15:31
Subject: Re: Replacing disks in DiskSuite

If you follow the steps you outlined, you will only use 36GB of your 72GB
disk.  The best way I can think to do this would be to backup all your file
systems, break the mirror, format and partition the 72GB disk, restore from
tape and once you know you have a working, bootable disk insert the other
72GB and re-create the metadb's and mirrors.

David A Stempnakowski
Member HTML Writers Guild
Member International Webmasters Association

3Do not meddle in the affairs of system administrators for they are subtle
and quick to anger.2

> From: "Anthony Firmin" <>
> Reply-To:
> Date: Mon, 6 Oct 2003 11:38:52 +0100
> To: <>
> Subject: Replacing disks in DiskSuite
> I need your help!!!
> We have a Sun 480R with two 36GB internal disks and we need to replace
> with two 72GB disks.  Apart from swap there are only two partitions on the
> disk, / and /var.
> The way I plan on doing this is...
> Make sure the backups were successful
> Break the mirror
> Take the mirror disk offline
> Remove and replace the mirror disk
> Bring the disk online in Solaris
> Sync the mirror disk with the original
> Reboot from the mirror disk (after I've changed the boot device)
> Then repeat the process for the main disk.
> Now then, if I was doing this with Veritas this would be a piece of cake.
> But its a DiskSuite system which I have inherited and the amount I know
> about DS could be written on a postage stamp!!
> So what I need help with is the DS commands, and as a sanity check, is
> the right approach.
> Many, many thanks in advance,
> Anthony
> _______________________________________________
> sunmanagers mailing list
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Received on Mon Oct 13 08:29:23 2003

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