Kashyap, But when i use a LSI 3081E-R HBA (mptsas driver) the disk ordering is ALWAYS the same, and always in correct order. I would like to keep that functionality when upgrading to the newer 9211-8i HBA. Kind regards, Caspar Smit 2011/5/13 Desai, Kashyap <Kashyap.Desai@xxxxxxx>: > Smit, > > Disk ordering is not done by mpt2sas driver. > Ordering is purely depend upon How FW discovers drivers and repots it to Driver. > > e.a if you have slow spinning driver at slot-0, it can be reported by FW at the end, though it is attached to slot-0. > > In summary, Disk ordering is not guaranteed. > > ~ Kashyap > >> -----Original Message----- >> From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi- >> owner@xxxxxxxxxxxxxxx] On Behalf Of Caspar Smit >> Sent: Friday, May 13, 2011 4:04 PM >> To: linux-scsi@xxxxxxxxxxxxxxx >> Subject: Re: mpt2sas: bug in disk ordering? >> >> Hello again, >> >> I tried with Debian Squeeze with the latest backports kernel 2.6.38, >> which has mpt2sas version 07.100.00.00 >> and now the disks are ordered this way: >> >> /dev/sdb = slot 3 >> /dev/sdc = slot 2 >> /dev/sdd = slot 1 >> /dev/sde = slot 0 >> /dev/sdf = slot 7 >> /dev/sdg = slot 6 >> /dev/sdh = slot 5 >> /dev/sdi = slot 4 >> >> So there's more consistency here but still ordered backwards (per port) >> >> Kind regards, >> >> Caspar Smit >> >> >> 2011/5/13 Caspar Smit <c.smit@xxxxxxxxxx>: >> > Hi all, >> > >> > I'm having a minor issue with the disk ordering using an LSI 9211-8i >> > (mpt2sas) controller. >> > >> > If i go into the controllers SAS config utility during boot I can >> > identify the disks in the slots. >> > >> > disk 0 -> slot 0, disk 1 -> slot 1, etc.. everyhting is fine. >> > >> > When I boot into debian linux lenny (using the latest backports >> > 2.6.32-31 kernel, this kernel has version 02.100.03.00 of the mpt2sas >> > driver) >> > >> > The disks are ordered this way: >> > >> > /dev/sda = internal SSD connected to the MB >> > >> > /dev/sdb = slot 0 >> > /dev/sdc = slot 1 >> > /dev/sdd = slot 2 >> > /dev/sde = slot 3 >> > /dev/sdf = slot 7 (!) >> > /dev/sdg = slot 4 >> > /dev/sdh = slot 5 >> > /dev/sdi = slot 6 >> > >> > So it seems the first 4 disks connected to SAS port 1 are ordered >> > correctly and the last 4 disks are not. >> > >> > When I check /dev/disk/by-path i see the following: >> > >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 pci-0000:04:00.0-sas- >> > 0x500605b001d161b0:1:0-0x4433221103000000:0 -> ../../sdb >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:1-0x4433221102000000:0 -> >> > ../../sdc >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:2-0x4433221101000000:0 -> >> > ../../sdd >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:3-0x4433221100000000:0 -> >> > ../../sde >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:4-0x4433221104000000:0 -> >> > ../../sdf >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:5-0x4433221107000000:0 -> >> > ../../sdg >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:6-0x4433221106000000:0 -> >> > ../../sdh >> > lrwxrwxrwx 1 root root 9 2011-05-13 10:52 >> > pci-0000:04:00.0-sas-0x500605b001d161b0:1:7-0x4433221105000000:0 -> >> > ../../sdi >> > >> > This LOOKS as it should but right now it is not really correct >> because >> > 1:7 indicates that it should be physical slot 7 (sdi is in slot 6 and >> > not in slot 7) >> > >> > When i use the sas2ircu command line util to LOCATE the disks and I >> > use 1:7 to locate, slot 7 lights up (NOT disk sdi) >> > >> > Is this behavior fixed in a newer version of the driver, and if so >> > what is the corresponding patch to fix this? >> > >> > Kind regards, >> > >> > Caspar Smit >> > >> -- >> 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 > -- 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
