My Oracle Support Banner

LTO-4 - Some Drives Are Seen Under Lib Admin at 1GB, Others Are Seen on the Same Switch at 4GB (Doc ID 1307170.1)

Last updated on JULY 25, 2022

Applies to:

IBM LTO4 Tape Drive - Version Not Applicable and later
Information in this document applies to any platform.


Some drives are seen under lib admin at 1GB, others are seen on the same switch at 4GB.
(Library at 3.17.03   Drives at 91VF)


Recommended to have all drive set with loop_id=126 for soft addressing. Also check the switch port link speed and topology settings.

Port loop_id already set to 126 for all drives, switch ports in auto-neg (same results when forced to 4GB).

Have seen similar issues with switch firmware.


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.