we have done the "disk replace" method mentioned and it worked without a flaw.  it took a few weeks but we actually were able to remove 6 physical
shelves with no downtime other than a planned cf takeover->uncable loops of unused shelves->cf giveback.


--
Daniel Leeds
Manager, Storage Operations
Edmunds, Inc.
1620 26th Street, Suite 400 South
Santa Monica, CA 90404

310-309-4999 desk
310-430-0536 cell



-----Original Message-----
From: owner-toasters@mathworks.com on behalf of Nils Vogels
Sent: Thu 11/13/2008 1:16 PM
To: Ray Van Dolson
Cc: toasters@mathworks.com
Subject: Re: Removing a shelf.

Hey Ray,

On Thu, Nov 13, 2008 at 9:31 PM, Ray Van Dolson <rvandolson@esri.com> wrote:
>
> An aggregate spans two shelves, one of which is the shelf that needs to
> be returned.  This aggregate contains a FlexVol currently in use.  I'd
> like to preserve the FlexVol but remove the shelf.

If you can afford the downtime, you could offline the aggregate
concerned, swap the disks into the shelf that can remain, and online
the aggregate again. Should be a few minutes.

Another way, which does take a lot longer, is to use "disk replace" to
copy the used disks from their old position to their new ones. No
downtime, but the disks get copied one at a time, which can be a few
hours.

HTH & HAND

--
Simple guidelines to happiness:
Work like you don't need the money,
Love like your heart has never been broken and
Dance like no one can see you.