> -----Original Message----- > From: Lukas Kolbe [mailto:lkolbe@xxxxxxxxxxxxxxxxxxxxxxxx] > Sent: Wednesday, November 18, 2009 7:09 PM > To: Desai, Kashyap > Cc: linux-scsi@xxxxxxxxxxxxxxx > Subject: Re: Bug 14579 - Devices disappear... and Bug 14577 - Data > corruption with Adaptec > > Desai, Kashyap wrote: > > >> >Subject line is related to *Adaptec* and there are some places LSI > >> >related issue is pointed out. Little confusing to me. Is it possible > to > >> >rewrite what is an issue related to LSI card? > >> > >> Sorry for that one. This system has an Adaptec Controller for its > >> Storage array and an LSI controller for the tape library. Bug 14577 is > >> about a possible data corruption on 2.6.32-rc6 that seems to be either > a > >> hardware error (currently trying to find that out) or a regression in > >> 2.6.32-rc6, as 2.6.30 is very happy with its storage. > >OK. In data corruption condition only LSI driver and controller are > >involved? I mean can I nullify Adaptec controller's roll in your test? > > No, it is the other way round. We have 24 1TB Seagate harddisks > connected in a RAID 60 to the adaptec controller, and a Tandberg T80 > with two IBM Ultrium-HH4 tape drives connected to the LSI controller. > > The system is installed on an LVM volume within the RAID 60. > The data corruption occurs when we try to boot 2.6.32-rc6, we get write > errors and the boot process stops somewhere. So, it seems the data > corruption is related _only_ with the Adaptec Controller, the RAID array > or the harddisks. > > >> Finally, the real problem here is Bug 14579 that is about the systems > >> problems when using the tape library. > >> > >> >From dmesg log I can figure out 3.04.07 is mpt fusion driver version. > >> >Please update LSI driver using latest upstream driver version 3.04.13. > >> And see what a result is. > >> > >> Thanks for the pointer. Linus' current tree contains 3.04.12 - where > can > >> I find 3.04.13? > > > >It is there in 2.6.32-rc5. Not sure in which exact rc version it is > >included, but I have 2.6.32-rc5 tree in my setup and for that kernel > >mptfusion version is 3.104.13 > > Okay, I grep'ed for 3.04 in the source and only got one reference to the > older version number. But there lies the problem: Unless we can fix the > Adaptec-Bug first (or confirm it is a hardware issue), we can't boot > 2.6.32-rc on that machine to test the new LSI driver version. Is it > easily possible to backport/include the mptfusion in 2.6.30? OK. So I get it now. You are working to solve major issue which is related to your RAID 60 + Adaptec controller. If you want to upgrade LSI driver, we can always go for latest driver. I can provide you latest driver source tar ball. Back porting to 2.6.30 is fine. > > Thanks for the help and kind regards, > -- > Lukas Kolbe -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
