IBM TS2340 User Guide - Page 442
Querying Primary and Alternate Path Configuration (Control Path Failover)
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Windows - Utility Program (ntutil) Querying Primary and Alternate Path Configuration (Control Path Failover) To check if the control path failover has been enabled in the device driver and display the primary and alternate paths, you may use the Windows utility program ntutil. Open a tape library from ntutil library mode, choose option "get changer bus info". If you have multiple paths configured for Changer0, lists of multiple Changer0s are output. Each one is associated with a different bus address. One of them is marked as "Primary". The other Changer0s that are not marked as Primary are alternate paths for Changer0. The following is an example of the output of "get changer bus info" option from ntutil. Changer0 and Changer1 have failover enabled, and Changer2 does not have failover enabled. There are one path for Changer1 and two paths for Changer0. For Changer0, the path with SCSI address 03.01.00.01 is the primary path, and the path with SCSI address 03.01.03.01 is an alternate path. DEVICE NAME SERIAL FAILOVER SCSI ADDRESS ACTIVE PRIMARY Changer1 0000000T00390401 YES 03.01.04.01 YES PRIMARY Changer0 0000000T003904E5 YES 03.01.00.01 YES PRIMARY Changer0 0000000T003904E5 YES 03.01.03.01 YES Changer2 0000000T00361234 NO 03.01.02.01 YES PRIMARY Querying Primary and Alternate Path Configuration (Data Path Failover) To check if the data path failover has been enabled in the device driver and display the primary and alternate paths, you may use the Windows utility program ntutil. Open a tape library from ntutil base mode, choose option "get tape bus info". If you have multiple paths configured for Tape0, lists of multiple Tape0s are output. Each one is associated with a different bus address. One of them is marked as "Primary". The other Tape0s that are not marked as Primary are alternate paths for Tape0. The following is an example of the output of this option from ntutil. Tape0, 1, and 3 have failover enabled. Tape2 does not have failover enabled. Tape3 has two paths configured. The path with the SCSI address 03.01.05.00 is the primary path, and the path with SCSI address 03.01.07.00 is an alternate path. DEVICE NAME SERIAL FAILOVER SCSI ADDRESS ACTIVE PRIMARY Tape1 Tape2 Tape3 Tape3 Tape0 000001300486 YES 1200019801 NO 000001350051 YES 000001350051 YES 000001365066 YES 03.01.01.00 03.01.08.00 03.01.05.00 03.01.07.00 03.01.00.00 YES PRIMARY YES PRIMARY YES PRIMARY YES YES PRIMARY 424 IBM Tape Device Drivers Installation and User's Guide