From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alberto Alonso Subject: Re: Implementing low level timeouts within MD Date: Tue, 30 Oct 2007 00:08:07 -0500 Message-ID: <1193720887.3876.8.camel@w100> References: <1193418753.4771.17.camel@w100> <1193425254.10336.290.camel@firewall.xsintricity.com> <1193521561.7690.14.camel@w100> <1193529329.10336.366.camel@firewall.xsintricity.com> <1193552822.6541.8.camel@w100> <1193678521.10336.486.camel@firewall.xsintricity.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1193678521.10336.486.camel@firewall.xsintricity.com> Sender: linux-raid-owner@vger.kernel.org To: Doug Ledford Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Mon, 2007-10-29 at 13:22 -0400, Doug Ledford wrote: > OK, these you don't get to count. If you run raid over USB...well...you > get what you get. IDE never really was a proper server interface, and > SATA is much better, but USB was never anything other than a means to > connect simple devices without having to put a card in your PC, it was > never intended to be a raid transport. I still count them ;-) I guess I just would of hoped for software raid to really don't care about the lower layers. > > > * Internal serverworks PATA controller on a netengine server. The > > server if off waiting to get picked up, so I can't get the important > > details. > > 1 PATA failure. I was surprised on this one, I did have good luck with with PATA in the past. The kernel is whatever came standard in Fedora Core 2 > > > * Supermicro MB with ICH5/ICH5R controller and 2 RAID5 arrays of 3 > > disks each. (only one drive on one array went bad) > > > > * VIA VT6420 built into the MB with RAID1 across 2 SATA drives. > > > > * And the most complex is this week's server with 4 PCI/PCI-X cards. > > But the one that hanged the server was a 4 disk RAID5 array on a > > RocketRAID1540 card. > > And 3 SATA failures, right? I'm assuming the Supermicro is SATA or else > it has more PATA ports than I've ever seen. > > Was the RocketRAID card in hardware or software raid mode? It sounds > like it could be a combination of both, something like hardware on the > card, and software across the different cards or something like that. > > What kernels were these under? Yes, these 3 were all SATA. The kernels (in the same order as above) are: * 2.4.21-4.ELsmp #1 (Basically RHEL v3) * 2.6.18-4-686 #1 SMP on a Fedora Core release 2 * 2.6.17.13 (compiled from vanilla sources) The RocketRAID was configured for all drives as legacy/normal and software RAID5 across all drives. I wasn't using hardware raid on the last described system when it crashed. Alberto