Troubleshooting
Problem
The Tivoli Storage Manager Management Console or TSMDLST.EXE fails to create the required Tivoli Storage Manager device name for library and tape devices on the Windows platform.
Cause
Windows and Tivoli Storage Manager address SCSI devices with different addressing convention
Resolving The Problem
When the TSMNAME does not appear in the Management Console or TSMDLST, the path definition cannot be created within the IBM Tivoli Storage Manager server application. The following procedure can be used to manually build the TSMNAME and complete the device's configuration in Tivoli Storage Manager.
On the Windows platform, storage devices are accessed by their device names. These device names are built from a combination of SCSI Target ID, LUN, BUS and PORT (t.l.b.p). The Windows order of addressing the device name components is p.b.t.l, while that of Tivoli Storage Manager is t.l.b.p
1) Use the Windows registry to identify the Windows assignment of the address components for the device name. In the example below, we determine the device name for an IBM 3584 Library Changer.
+ Run REGEDIT, and go to HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SCSI
Traverse the registry tree to the lowest level, the Lun ID, for the device in question. Verify the Identifier value to represent the device correctly. For this example we see that the library changer is a 3584L32. Based on the path in the registry key, we determine that this 3584 has the following device address:
- Port 2,
- Bus 0,
- Target Id 3,
- LUN 1
TSM builds its device name in the following order: Target ID, LUN, Bus, Port. Therefore, the TSMNAME of this device would be: lb3.1.0.2
Use the manually determined Tivoli Storage Manager device name in the DEFINE PATH commands in Tivoli Storage Manager to complete the configuration of the device. Refer to the Tivoli Storage Manager Administrator's Guide for more details on defining library, drives, and path command syntax.
NOTE: The above procedure can also be used to determine the TSMNAME for a tape/optical drive. Once the address components are determined, order them appropriately in the form of mtt.l.b.p for a tape peripheral and opt.l.b.p for an optical peripheral.
Below is an example of what can be seen in the Windows registry for a 3584 Changer
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Document Information
Modified date:
17 June 2018
UID
swg21237828