Re: problems with "LSISAS2008 6Gb/s SAS" kernel mpt2sas driver

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On 21/10/10 08:31, Louis-David Mitterrand wrote:
Hi,

I am setting up a new Dell T610 server with 8 WD Black Caviar sata3 1TB
disks on a LSISAS2008 controller:

	Oct 21 09:12:37 grml kernel: [   83.377388] mpt2sas0: LSISAS2008: FWVersion(02.1
5.63.00), ChipRevision(0x02), BiosVersion(07.01.09.00)

My layout is as follows:

- small un-encrypted raid1 boot partition on /dev/md0

- dm-crypt main partition on /dev/md1 (actuallly /dev/mapper/cmd1)

A recent grml64 is used to create the partitions, install the system and
run lilo.

When running lilo I get these errors from the controller:

	Oct 21 08:57:11 grml kernel: [40832.015207] mpt2sas0: fault_state(0x265d)!
	Oct 21 08:57:11 grml kernel: [40832.015210] mpt2sas0: sending diag reset !!


Any suggestion on fixing that problem would be welcome. I can send more
complete logs.

Looks like a firmware bug - do you have the latest firmware? Drive firmwares? Anything in the drive error logs (using smartctl)?

If not, then try opening a bug on the kernel bugzilla - LSI engineers read that (and sometimes even fix things).

Otherwise, you could try replacing with a straight SATA contoller, if that box doesn't have a SAS backplane - I've not been to impressed by the quality of engineering for LSI contollers, and SATA-on-SAS in general hasn't been very reliable IMO. Just go for a well supported SATA controller (e.g. Sil 3132 etc.).

Tim.


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