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11-20-2007 02:24 AM
11-20-2007 02:24 AM
RHEL 4 server can't see tape drives
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: COMPAQ Model: ESL9000 Series Rev: 3.31
Type: Medium Changer ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 01
Vendor: HP Model: Ultrium 1-SCSI Rev: E38W
Type: Sequential-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 02
Vendor: HP Model: Ultrium 1-SCSI Rev: E38W
Type: Sequential-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 03
Vendor: HP Model: Ultrium 1-SCSI Rev: E38W
Type: Sequential-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 04
Vendor: HP Model: Ultrium 1-SCSI Rev: E38W
Type: Sequential-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 05
Vendor: COMPAQ Model: NS ROUTER E1200 Rev: 5929
Type: RAID ANSI SCSI revision: 04
This is what it sees:
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: COMPAQ Model: ESL9000 Series Rev: 3.31
Type: Medium Changer ANSI SCSI revision: 02
Any ideas on what I'm missing here? I have verified that both of the servers from the examples above or in the correct zone in the SAN.
Thanks
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11-20-2007 12:31 PM
11-20-2007 12:31 PM
Re: RHEL 4 server can't see tape drives
#lspci|grep -i fibre
For lpfc/emulex cards
#/usr/sbin/lpfc/lun_scan all
for qlogic/qla2xxx cards
echo "1" >/proc/scsi/qla2xxx/1/issue_lip
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "1" >/proc/scsi/qla2xxx/2/issue_lip
echo "- - -" > /sys/class/scsi_host/host2/scan
assuming there are two hba cards configured.
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11-20-2007 10:06 PM
11-20-2007 10:06 PM
Re: RHEL 4 server can't see tape drives
Compare the files /etc/modules.conf between a system that works and the one that doesn't.
You'll probably find the following line, on the one that works.
options scsi_mod max_scsi_luns=255
Add it to the one that doesn't work then rebuild the kernel with mkinitrd.
Hope this helps,
Regards,
Rob
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11-22-2007 02:53 AM
11-22-2007 02:53 AM
Re: RHEL 4 server can't see tape drives
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11-22-2007 11:04 AM
11-22-2007 11:04 AM
Re: RHEL 4 server can't see tape drives
Reading your message indicates the issue is with the NSR on your tape library. I recommend you check the maps on the NSR.
The rules go as follows:-
The Active Fabric Device (AF) Lun0 should be seen under the following conditions
Windows â Should be seen as the first device presented in the map.
Linux â Should be seen as the last device presented in the map.
Make a different map for the relevant OS, and assign the HBA to the appropriate map.
Regards
Anthony
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