[Gllug] Fibre attached SCSI Drives - Qlogic 2100 & Chaparral K7413

[Christian Smith]

On Fri, 21 Nov 2003, Andy Young wrote:

>Hi all.
>
>I'm trying to rebuild an oldish server that has an disk array managed by
>a Chaparral K7413 controller attached to a Qlogic 2100 HBA.
>
>I've gone back to Redhat 7.0 which supports the QLA2100 out of the box
>(later Redhat distros support the 2200 and 2300 but not 2100).
>
>My server can 'see' the HBA and the drive array controller, but not the
>disks attached.
>The Qlogic firmware setup can run a disk check, so they are all plugged
>up OK.

The drives may appear on other luns of the controller. There is a way to 
make a kernel probe all luns in the config, or you can do it at run time.

Try:
# echo "scsi add-single-device 2 0 0 1" > /proc/scsi/scsi

which will probe for a device on controller 2, channel 0, device 0, lun 1. 
Your first drive should appear. Repeat for additional drives.


>
>cat /proc/scsi/scsi shows:
>
>Attached devices: 
>Host: scsi2 Channel: 00 Id: 00 Lun: 00
>  Vendor: CHAPTEC  Model: K7413            Rev: K2.0
>  Type:   Processor                        ANSI SCSI revision: 03
>
>... And the relevant part of "dmesg" output shows:
>
>(scsi): Found a QLA2100  @ bus 0, device 10, irq 18, iobase 0xd800
>scsi(2): Configure NVRAM parameters...
>scsi(2): Verifying loaded RISC code...
>scsi(2): Verifying chip...
>scsi(2): LIP reset occurred
>scsi(2): Waiting for LIP to complete...
>scsi(2): LIP occurred.
>scsi(2): LOOP UP detected
>scsi2: Topology - (Loop), Host Loop address 0x1
>scsi-qla0-adapter-node=0000000000000000;
>scsi-qla0-adapter-port=200000e08b01302a;
>scsi-qla0-target-0=2000005013b01787;
>scsi2 : QLogic QLA2100 PCI to Fibre Channel Host Adapter: bus 0 device
>10 irq 18
>        Firmware version:  1.19.10, Driver version 2.23
>scsi : 3 hosts.
>  Vendor: CHAPTEC   Model: K7413             Rev: K2.0
>  Type:   Processor                          ANSI SCSI revision: 03
>scsi(2:0:0:0): Enabled tagged queuing, queue depth 16.
>
>However I can't access the SCSI array with /dev/sda (or sdb or anything
>else!)
>
>>From what I can make out, I should be seeing a message along the lines
>of:
>
>Detected scsi disk sda at scsi2, channel 0, id 0, lun 0
>
>But I'm not :(
>
>Any advice on what route to take to troubleshoot this would be
>gratefully received.
>
>Many thanks,
>
>Andy.
>
>Andy Young
>Design Systems Administrator
>BBC Post Production
>
>*	mailto:andy.young at bbc.co.uk
>*	http://www.bbcresources.com/postproduction
>
>
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