IBM Tape
From Leo's Notes
Last edited on 30 December 2021, at 01:07.
IBM tape devices are interfaced with the lin_tape device driver and is loaded as a Linux kernel module. Servers that require access to tape devices include Tivoli Storage Manager (for server or storage agents) or IBM Spectrum Archive. The lin_taped daemon creates the special device files that correspond to the tape devices.
After the lin_tape module is loaded, you can see all attached tape devices with /proc/scsi/IBMtape:
## On a TSM server with access to only LTO7 drives:
[root@tsm ~]# cat /proc/scsi/IBMtape
lin_tape version: 3.0.18
lin_tape major number: 243
Attached Tape Devices:
Number model SN HBA SCSI FO Path
0 ULT3580-TD7 00078D15CE lpfc 1:0:0:0 Primary
1 ULT3580-TD7 00078D15D3 lpfc 1:0:1:0 Primary
2 ULT3580-TD7 00078D1255 lpfc 1:0:2:0 Primary
3 ULT3580-TD7 00078D12D2 lpfc 1:0:3:0 Primary
4 ULT3580-TD7 00078D15CE lpfc 2:0:0:0 Alternate
5 ULT3580-TD7 00078D15D3 lpfc 2:0:1:0 Alternate
6 ULT3580-TD7 00078D125C lpfc 2:0:2:0 Primary
7 ULT3580-TD7 00078D1586 lpfc 3:0:0:0 Primary
8 ULT3580-TD7 00078D159C lpfc 3:0:1:0 Primary
9 ULT3580-TD7 00078D125C lpfc 3:0:2:0 Alternate
10 ULT3580-TD7 00078D1586 lpfc 4:0:0:0 Alternate
11 ULT3580-TD7 00078D159C lpfc 4:0:1:0 Alternate
12 ULT3580-TD7 00078D12D2 lpfc 4:0:2:0 Alternate
13 ULT3580-TD7 00078D1255 lpfc 4:0:3:0 Alternate
## On a LTFSEE server with access to LTO8 drives on the same tape library:
[root@ltfs ~]# cat /proc/scsi/IBMtape
lin_tape version: 3.0.52
lin_tape major number: 240
Attached Tape Devices:
Number model SN HBA SCSI FO Path
0 ULT3580-TD8 000780765B qla2xxx 5:0:0:0 Primary
1 ULT3580-TD8 000780765B qla2xxx 3:0:0:0 Alternate
2 ULT3580-TD8 0007807A0B qla2xxx 3:0:1:0 Primary
3 ULT3580-TD8 0007807A4B qla2xxx 3:0:2:0 Primary
4 ULT3580-TD8 0007807A0B qla2xxx 5:0:1:0 Alternate
5 ULT3580-TD8 0007807A4B qla2xxx 5:0:2:0 Alternate
Additionally, the tape changers can be viewed with cat /proc/scsi/IBMchanger.
[root@tsm ~]# cat /proc/scsi/IBMchanger
lin_tape version: 3.0.18
lin_tape major number: 243
Attached Changer Devices:
Number model SN HBA SCSI FO Path
0 03584L32 0000078BA6130401 lpfc 1:0:0:1 Primary
1 03584L32 0000078BA6130401 lpfc 2:0:0:1 Alternate
2 03584L32 0000078BA6130401 lpfc 3:0:1:1 Alternate
3 03584L32 0000078BA6130401 lpfc 4:0:1:1 Alternate
[root@ltfs ~]# cat /proc/scsi/IBMchanger
lin_tape version: 3.0.52
lin_tape major number: 240
Attached Changer Devices:
Number model SN HBA SCSI FO Path
0 03584L32 0000078BA6130402 qla2xxx 3:0:0:1 Primary
1 03584L32 0000078BA6130402 qla2xxx 5:0:0:1 Alternate
2 03584L32 0000078BA6130402 qla2xxx 3:0:2:1 Alternate
3 03584L32 0000078BA6130402 qla2xxx 5:0:2:1 Alternate
See Also
- Installing lin_tape driver: https://www.ibm.com/support/pages/installing-lintape-device-driver