VTL - AIX TSM client tape device configuration

Asset ID:	1-72-1014747.1
Update Date:	2011-06-21
Keywords:

Solution Type Problem Resolution Sure

Solution 1014747.1 : VTL - AIX TSM client tape device configuration - audit fails

Applies to:

Sun StorageTek VTL Value System
Sun StorageTek VTL Plus Storage Appliance
Sun StorageTek VTL Storage Appliance
Linux x86
Oracle Solaris on x86 (32-bit)
.
***Checked for relevance on 21-06-2011*** (dd-mm-yyyy)

Symptoms

Library audit fails
Mismatch between TSM element number, drive and RMT
Tape serial number mismatch

Cause

Mismatch between TSM element number, drive and RMT
TSM had physical tape drive assigned to virtual tape drive
Tape serial number mismatch

Solution

There are several identifiers associated with each tape drive:

Serial number assigned to the drive at the factory
Element number assigned according to where the drive is placed in the library
LUN number assigned either by software or by setting a parameter or a switch on the drive
Device address assigned by the operating system on the client system

In a VTL, these are augmented by:

VTL Drive Name Assigned in the VTL
Fibre Channel Target WWPN, the VTL Fibre Channel Port Name for this drive
Fibre Channel Initiator WWPN, the Client system Fibre Channel Port Name for this drive

All these identities must line up. That is to say, whether the backup software addresses a tape drive by element number or LUN number or device address, the same drive must respond.

To keep item in sync, maintain a table with all the information for all the tape drives. At a minimum, track the seven pieces of information outlined above. The following pieces of information can be supplied by the VTL Console:

VTL Drive Name Assigned in the VTL
Serial number assigned to the drive at the factory
Element number assigned according to where the drive is placed in the library
LUN number assigned either by software or by setting a parameter or a switch on the drive

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Previously Published As
STKKB79561

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