Newer kernel not detecting devices?

[David]

I have here a server with an LSI SCSI card. On one channel is a tape changer, on the other an external RAID5 box with a number of disks in. All worked fine until a recent upgrade and now the disk array is not recognised.

lspci:

00:04.0 PCI bridge: Intel Corporation E7525/E7520 PCI Express Port B (rev 09)
)


On the old install, the following is seen:

/proc/scsi/sg/device_strs
PE/PV           1x2 SCSI BP             1.0
MegaRAID        LD 0 RAID1  286G        516A
E1600SR                                 0001 (the disk array)
HL-DT-ST        RW/DVD GCC-4243N        A102

uname -a:



On the new install:

/proc/scsi/sg/device_strs
HL-DT-ST        RW/DVD GCC-4243N        A102
PE/PV           1x2 SCSI BP             1.0
MegaRAID        LD 0 RAID1  286G        516A

uname -a:


dmesg output from both builds is attached to this message.

A livecd of the old OS still recognises the disk array as sdb1 correctly.



Regards,

David

The disk array is still recognised on machine startup in the SCSI card output on HBA 1, ID 0, LUN 0. The tape changer is recognised in the new install and has the correct devices assigned as before. The SCSI card used for the tape changer and disk array is an LSI Logic card. The MegaRAID is seperate, a Dell PERC which has the system disks attached. However, another PERC was tested instead of the LSI SCSI card which had the same problem. 00:02.0 PCI bridge: Intel Corporation E7525/E7520/E7320 PCI Express Port A (rev 09) 02:0c.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07) 02:0c.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07) 02:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller 4 (rev 06) Linux ubuntu 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux Linux ubuntu 2.6.22-14-server #1 SMP Sun Oct 14 23:34:23 GMT 2007 i686 GNU/Linux Is this an issue with modules/options or a problem with the distro (Ubuntu server)?

2.6.22-dmesg.gz
Description: application/gzip

2.6.20-dmesg.gz
Description: application/gzip