zfs discuss - Oct 2010 - Changing vdev controller

I have a 14 drive pool, in a 2x 7 drive raidz2, with l2arc and slog devices
attached.
I had a port go bad on one of my controllers (both are sat2-mv8), so I need to
replace it (I have no spare ports on either card). My spare controller is a LSI
1068 based 8 port card.

My plan is to remove the l2arc and slog from the pool (to try and minimize any
glitches), export the pool, change the controller, re-import and the add the
l2arc and slog. Is that basically the correct process, or are there any tips for
avoiding potential issues?

Thanks.
-- 
This message posted from opensolaris.org

> From: zfs-discuss-bounces at opensolaris.org [mailto:zfs-discuss-
> bounces at opensolaris.org] On Behalf Of Dave
> 
> I have a 14 drive pool, in a 2x 7 drive raidz2, with l2arc and slog
> devices attached.
> I had a port go bad on one of my controllers (both are sat2-mv8), so I
> need to replace it (I have no spare ports on either card). My spare
> controller is a LSI 1068 based 8 port card.
> 
> My plan is to remove the l2arc and slog from the pool (to try and
> minimize any glitches), export the pool, change the controller, re-
> import and the add the l2arc and slog. Is that basically the correct
> process, or are there any tips for avoiding potential issues?
You really don''t need to do that.  You can just export (or shutdown)...
swap
controllers, and bring it up again.  No need to remove the l2arc or slog.