Yes, that is one of the rare cases where it could be useful to have a dedicated root volume/aggr. However, running wafl_iron should be a very rare event, and in the case of a single shelf system, it's my opinion that not consuming the space outweighs this possibility.

But each site needs to make their own determination on this.

-- Adam Fox adamfox@netapp.com

-----Original Message----- From: Eino Tuominen [mailto:eino@utu.fi] Sent: Wednesday, January 24, 2007 11:58 PM To: Glenn Walker Cc: Fox, Adam; Linux Admin; NetApp Toasters List Subject: Re: 1 disk shelf with 1 head....using just aggr0

Glenn Walker wrote:

Between the two above arguments, there aren't a lot of reasons not to put it all together.

One other reason I came up with: you cannot run wafl iron on rootvol or on an aggregate containing the rootvol on a live system. I once had to run wafl iron on a 4 shelf single aggr R200, and it was a _long_ downtime.

-- Eino Tuominen