My Oracle Support Banner

SL150 - Library Cannot be Seen by Net Backup, Drives Can be Seen, Robtest Cannot See the TLD Device (Doc ID 1552924.1)

Last updated on JULY 25, 2022

Applies to:

StorageTek SL150 Modular Tape Library - Version All Versions and later
Information in this document applies to any platform.
Windows Enterprise Server 2008 R2
Brocade 425/825 Driver version: HBA
EMC DS-5100B Switch 6.4.2a
HP ULTRIUM 5 (driver version
Symantec Netbackup
"Unknown Media Changer" being used.
SL150 1.82 Firmware


Unable to see the SL150 from Netbackup

LT05 Drives are seen and can be configured into Netbackup.

Robtest shows "TLD(5) cannot be found".

Host Configuration Manager switch software shows library seen but with no OS device name (is blank). Other libraries on the same switch loop show OS device names.

Library is seen at device level in Windows Enterprise 2008 R2 OS

"Unknown Media Changer" being used.

SL150 has no apparent errors.

Diagnostic steps taken by customer

1. Power down sl150
2. Power down media servers
3. Powered up sl150 - 'displays online'
4. Started each media server sequentially
5. Robot appears in both media server as 'unknown changer'
6. Run 'Robtest' from cmd line on media servers. TLD(5) cannot be found.
7. Drives can be seen and added in NetBackup. But robot cannot be seen.


The library was installed in the rack a few months ago and has been idle and not connected during this period as customer was waiting for a new fibre switch to be installed. This work was completed and switch zoned.

On Initial startup, errors were seen in SL150:

Errors first seen ,0017,2012-10-25T18:16:47.058,9080,MAG_OPEN_OR_UNLATCHED,,,,,,,,,,,Resolved
O,0035,2013-03-28T14:01:56.578,9114,ROBOT_UNSPECIFIED_FAILURE,3,Robot,,,,,,,,,Inspect/replace robot
I,,2013-04-10T14:09:20.428,,,,,,,,,,,,,----> Library Start-up Detected <----
I,,2013-04-15T15:14:56.655,,,,,,,,,,,,,----> Library Start-up Detected <----
O,0002,2013-04-15T15:27:36.171,9080,MAG_OPEN_OR_UNLATCHED,1,Module 1 Left Magazine,2,Module 1 Chassis,3,Robot,,,,,Close magazine. Reseat/replace controller. Inspect/replace module chassis

Robot was replaced but connection issues with TLD(5) unaffected.

SL150 Microcode updated to 1.82 as attempt at resolution.

Switch Upgrade to 6.4.2a as attempt at resolution.

HP LTO5 drivers upgraded to as attempt at resolution.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.