From mboxrd@z Thu Jan 1 00:00:00 1970 From: adfas asd Subject: Re: Remote NAS Date: Wed, 23 Sep 2009 08:44:41 -0700 (PDT) Message-ID: <840059.86859.qm@web38806.mail.mud.yahoo.com> References: <20090923152927.GC9409@cthulhu.home.robinhill.me.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <20090923152927.GC9409@cthulhu.home.robinhill.me.uk> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids --- On Wed, 9/23/09, Robin Hill wrote: > > My goal is to have two large drives in the HTPC and > two out in the > > garage NASed, in RAID10 so that if my HTPC is stolen > or there's a fire > > I'll still have my data. But no one here seems > to know how to specify > > the HTPC drives as one side of the mirror and the > garage drives as the > > other. > > > You have two drives in RAID10 currently, and you want to go > to four. > Are you meaning to increase the capacity as well or do you > just want the > two remote drives to be a mirror of your current two > drives? Both more capacity, and remote storage. > > Needless to say I'd like performance to be good, but > that's starting > > to look hopeless. > > > I'd recommend getting two smaller drives, and having two > separate > mirrored pairs - the smaller array for the OS and database > and the > larger one for recording. Keep one of each size > within the HTPC and one > of each in the garage. You can also use the > write-mostly option to make > the kernel read from the local drives where possible. But what I'm saying there doesn't seem to be a way in mdadm to specify --one side-- of the mirror here, and the other side, there. Thanks for the tip on write-mostly.