Some SAN LUNs not visible with RHEL 5.3

[George Magklaras]

output of lspci -v?

The marking of LUN 2, how does it exactly appear in /sys/class/scsi_device/?

GM


Michal Ludvig wrote:
> Hi all,
> 
> I've got RHEL5.3 (x86) server with dual-port QLA2342 HBA (kernel module
> qla2xx) connected using FibreChannel to HP VA7410 disk array, one HBA
> port to each of the two SAN controllers.
> 
> I've got three LUNs created on the array:
> LUN 0:
>   Capacity:       1.0 GB
>   RGID:                 1
> 
> LUN 1:
>   Capacity:     301.4 GB
>   RGID:                 1
> 
> LUN 2:
>   Capacity:     100.0 GB
>   RGID:                 2
> 
> RGID is a "redundancy group" - RGID 1 is "owned" by the first SAN
> controller, RGID 2 by the second ctrlr.
> 
> However when I modprobe qla2xxx only LUN0 and LUN1 are attached as disks
> (sd). LUN2 is attached as 'scsi' and not accessible as a disk. The
> system knows that it exists, because there is an entry in
> /sys/class/scsi_device/ but is no accessible as a block device.
> 
> This is the relevant 'dmesg' output:
> 
> QLogic Fibre Channel HBA Driver
> ACPI: PCI Interrupt 0000:02:02.0[A] -> GSI 35 (level, low) -> IRQ 74
> qla2xxx 0000:02:02.0: Found an ISP2312, irq 74, iobase 0xd0040000
> qla2xxx 0000:02:02.0: LIP reset occured (f82b).
> scsi1 : qla2xxx
> qla2xxx 0000:02:02.0: LIP occured (f82b).
> qla2xxx 0000:02:02.0: LOOP UP detected (2 Gbps).
> qla2xxx 0000:02:02.0:
>  QLogic Fibre Channel HBA Driver: 8.02.00.06.05.03-k
>   QLogic QLA2342 - 133MHz PCI-X to 2Gb FC, Dual Channel
>   ISP2312: PCI (66 MHz) @ 0000:02:02.0 hdma-, host#=1, fw=3.03.26 IPX
> ACPI: PCI Interrupt 0000:02:02.1[B] -> GSI 34 (level, low) -> IRQ 82
> qla2xxx 0000:02:02.1: Found an ISP2312, irq 82, iobase 0xd0042000
> qla2xxx 0000:02:02.1: LIP reset occured (f827).
> scsi2 : qla2xxx
> qla2xxx 0000:02:02.1: LIP occured (f827).
> qla2xxx 0000:02:02.1: LOOP UP detected (2 Gbps).
> qla2xxx 0000:02:02.1:
>  QLogic Fibre Channel HBA Driver: 8.02.00.06.05.03-k
>   QLogic QLA2342 - 133MHz PCI-X to 2Gb FC, Dual Channel
>   ISP2312: PCI (66 MHz) @ 0000:02:02.1 hdma-, host#=2, fw=3.03.26 IPX
>   Vendor: HP        Model: A6218A            Rev: A140
>   Type:   Direct-Access                      ANSI SCSI revision: 03
>   Vendor: HP        Model: A6218A            Rev: A140
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> SCSI device sdb: 2097152 512-byte hdwr sectors (1074 MB)
> sdb: Write Protect is off
> sdb: Mode Sense: af 00 10 08
> SCSI device sdb: drive cache: write back w/ FUA
>  sdb: unknown partition table
> sd 2:0:0:0: Attached scsi disk sdb
>   Vendor: HP        Model: A6218A            Rev: A140
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> SCSI device sdc: 632164352 512-byte hdwr sectors (323668 MB)
> sdc: Write Protect is off
> sdc: Mode Sense: af 00 10 08
> SCSI device sdc: drive cache: write back w/ FUA
>  sdc: sdc1
> sd 2:0:0:1: Attached scsi disk sdc
>   Vendor: HP        Model: A6218A            Rev: A140
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> kjournald starting.  Commit interval 5 seconds
> [... and then, later on, when modules are loaded ...]
> scsi 1:0:0:0: Attached scsi generic sg3 type 0
> sd 2:0:0:0: Attached scsi generic sg4 type 0
> sd 2:0:0:1: Attached scsi generic sg5 type 0
> scsi 2:0:0:2: Attached scsi generic sg6 type 0
> 
> The last three lins are for LUN0, LUN1 (both accessible - 'sd' type) and
> LUN2 (inaccessible - 'scsi' type).
> 
> I tried all ports on the array as well as swapped the cables on HBA, so
> a HW problem of this type is unlikely.
> 
> Any ideas what's wrong?
> 
> Thanks!
> 
> Michal
>