From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Re: Which raid card to buy for Sarge Date: Thu, 01 Apr 2004 09:01:51 +0400 Sender: linux-raid-owner@vger.kernel.org Message-ID: <406BA23F.7000506@wasp.net.au> References: <406B9F3E.4020701@wasp.net.au> <1080795066.16499.15.camel@binkley> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1080795066.16499.15.camel@binkley> To: seth vidal Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids seth vidal wrote: >>One point. Hardware raid (and faux hardware raid) provides real hot swap with on-the-fly rebuilds. >>Linux software raid can't (yet). > > > umm. That's surprising. My software raid arrays running on dell > powervault 221s scsi boxes with adaptec 39160 controllers are > hotswappable and when I put in a new disk and add it to the array it > resyncs on the fly. > > Are you just talking about ide-based raid? Yes. ATA and SATA raid (Which is the majority of low budget linux software raid stuff) I realise scsi is hotswap. It comes with the turf. I would find it pretty hard to justify the expense of scsi for my 7 drive 1.4TB low speed array (Low speed because I never *need* more than about 2MB/s in any direction but I need heaps of space) Brad