T10000 - Drive Is Not Operational in OS-Linux FSC 376D

Asset ID:	1-72-2133445.1
Update Date:	2018-05-17
Keywords:

Solution Type Problem Resolution Sure

Solution 2133445.1 : T10000 - Drive Is Not Operational in OS-Linux FSC 376D

Related Items


Sun StorageTek T10000 Tape Drive

Related Categories


PLA-Support>Sun Systems>TAPE>Tape Hardware>SN-TP: STK T-Series Drive

T10000C Tape Drive becomes un-accessible  to Linux OS after FSC 376D

In this Document

Symptoms

Cause

Solution

References

Oracle Confidential PARTNER - Available to partners (SUN).
Reason: INTERNAL Information
Created from <SR 3-9888002201>

Applies to:

Sun StorageTek T10000 Tape Drive - Version Not Applicable to Not Applicable [Release N/A]
Linux x86-64

Symptoms

Tape drive does not reply on "mt stat" after a drive hardware failure.
Drive is not operational after FSC 376D

Cause

FSC Dictionary Description:
MODEL = T10000C
FSC = 376D
(FSC Match Found in Rev. 3.62)
FSC: 376D RO_FSC_READ_TIMEOUT_NO_AT_SPEED_DETECTED
MIM Code: TOLERANCE
FRU: MEDIA CONF: 50%
FRU: HARDWARE CONF: 50%
Summary: |SERVO RAMP UP |ERROR | *** |

Field Text:
The read code timed out waiting for an interrupt to occur. The servo never indicated that it had acquired the correct track.

On this type of failure (FSC 376D) tape drives falls into a error recovery which the OS kernel times out on.

Solution

OS Kernel update to be able to adjust timer "eh_timeout" value larger than 10 seconds.

The BUG has been closed with the following:

Servo engineering team says that any attempted code fix for this would bring serious risk implications.

References

<BUG:20129434> - DWD- T10KC FCS 376D SENDS: ASC=0X44/ASCQ=0XB6 TO LINUX HOST, JOB DIES.
<NOTE:1307534.1> - SL3000/SL8500 - How to Collect Log Snapshot From SL8500 or SL3000 Library

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