L700/18/1400 - LTO4 Drive Mount Issues With Code 3.18.02, FSC3E0A, FSC3E15

Asset ID:	1-72-1442032.1
Update Date:	2012-04-03
Keywords:

Solution Type Problem Resolution Sure

Solution 1442032.1 : L700/18/1400 - LTO4 Drive Mount Issues With Code 3.18.02, FSC3E0A, FSC3E15

Applies to:

Sun StorageTek L700e Tape Library - Version: Not Applicable and later   [Release: N/A and later ]
Sun StorageTek L1400 Tape Library - Version: Not Applicable and later    [Release: N/A and later]
Sun StorageTek L180 Tape Library - Version: Not Applicable and later    [Release: N/A and later]
Information in this document applies to any platform.

Symptoms

L700e Library is installed with LTO2 & LTO4 drives.
After upgrading Library code from 3.15.02 to 3.18.02, mount operations on all LTO4 drive are failing intermittently.
LT02 operations are not affected.

Below FSCs are logged for mount operation on LTO4 drives from ACSLS or directly from L700.

3E0A --- ERR_DRV_CMD_TTI_FAILURE, - DRV Command Failed - TTI communication to drive failed.
3E15 --- ERR_DRV_CONN_STATE_NOT_FUNCTIONAL - DRV Drive Connection State Transition - Drive not functional.

FSC3E0A
FSC3E15

Changes

Code upgrade from 3.15.02 to 3.18.0.

Cause

This issue is due to a Bug in library code 3.18.02 effecting LTO4 Drives.

6921499 : Code bug in L700 code at 3.18.02 that is not present in 3.17.03
<BUG:6921499> - REPORT THE CODE BUG IN L700 CODE AT 3.18.02 THAT IS NOT PRESENT IN 3.17.03, THE SITE IS NOW RUNNING
http://monaco.sfbay.sun.com/detail.jsf?cr=6921499

--Taken from the Bug Number --
The reported FSCs when the drives fail and the firmware levels are:
1. The IBM LTO 4s fail with 3E0A and 3E15, code is at 94D7
    "3E15 is "Drive not functional"
    "3E0A is "TTI communication to drive failed"

2. The HP LTO 4s fail with 3E0A and 3E13, code is at H58S
    "3E13 is "Drive not responding"

Solution

There is no plan to fix this Bug as the L700/L180/L1400 are EOSL. (End of Service Life)
Option is to downgrade code to 3.17.02.

References

<NOTE:1284437.1> - L700/L700e - Problem with SAMFS Loading LTO2 Media into LTO4 Drives
<NOTE:1016845.1> - L180/700/1400 - Requiring Firmware to Support IBM LTO Gen-4 Drive in Library

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