Lin_tape and Control Point Failover

[dmarsee]

Greetings. I have a RHEL 4 box running TSM 5.4.3.0 using lin_tape(d) 1.23.0 and ibmatl 6.7.5.0 to access a shared 3584 library managed by another TSM server. I've added the appropriate options line to /etc/modprobe.conf to implement tape path and control point failover, and while the tape path failover looks fine:

cat /proc/scsi/IBMtape
lin_tape version: 1.23.0
lin_tape major number: 253
Attached Tape Devices:
Number model SN HBA FO Path
0 03592J1A 000001234567 qla2xxx Primary
1 03592J1A 000002345678 qla2xxx Primary
2 03592J1A 000003456789 qla2xxx Primary
3 03592J1A 000004567890 qla2xxx Primary
4 03592J1A 000001234567 qla2xxx Alternate
5 03592J1A 000002345678 qla2xxx Alternate
6 03592J1A 000003456789 qla2xxx Alternate
7 03592J1A 000004567890 qla2xxx Alternate

the control point failover does not:

cat /proc/scsi/IBMchanger
lin_tape version: 1.23.0
lin_tape major number: 253
Attached Tape Devices:
Number model SN HBA FO Path
0 03584L22 0000000A12345678 qla2xxx NA
1 03584L22 0000000A12345678 qla2xxx NA

It sees both paths to the library, but does not set them up as a Primary-Alternate pair like I expected or as the docs say it should. The 3584 library does have the failover path feature code installed. Is this what I should be seeing since this server is not the library manager, or should I see the Primary-Alternate failover paths anyway, or does it even matter if it's set up Primary-Alternate or not since it shows both paths to the library control point? I am planning to migrate the library manager function to this TSM server, but am hesitant to do so until I have this control point failover question resolved. Any insight is appreciated.

Regards,

Dmarsee

 

[moon-buddy]

I believe that what you are seeing is correct since as you said "since this server is not the library manager".