From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Scobie Subject: Re: sd takes drive offline but md does not know Date: Sun, 30 Nov 2008 20:34:05 +1300 Message-ID: <493241ED.70402@sauce.co.nz> References: <4930FB21.2070108@sauce.co.nz> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: David Lethe Cc: Linux RAID Mailing List List-Id: linux-raid.ids David Lethe wrote: > What firmware, drivers & BIOS is the LSI controller running, and what is > exact model number? The card is the SAS3442E-R using the B3 version of the 1068 controller and has the latest public versions of BIOS and IT version of the firmware. > Several things to consider > - if you enabled SMART rather than telling the controller to enable > SMART for the individual drives, then this will cause a problem > depending on specifics of what you have .. especially if the controller > is running the RAID firmware. > - There are firmware issues with some LSI chipsets and > driver/bios/MPT-library revision logic which can cause bus resets. In > this case, the bus reset made the controller think the disk timed out to > whatever I/O operations the LSI controller told it to perform ... so the > controller took disk to offline state. At this stage I am no longer concerned about using smartmontools - the card has performed flawlessly in all other respects, so I will avoid it in future. I am concerned that when the drive was offlined, md was not made aware of it. Perhaps this is to be expected? Unfortunately this machine is in production now, so I cannot really participate in any more testing/debugging. Regards, Richard