MSL 6000 problem

Xishan — Sun, 25 May 2008 11:35:08 GMT

Hi all...
for the last 2 weeks or so...im trying to re-configure MSL 6000 tape library through data protector 5....but have failed miserably...
the library was working fine untill one day...when scheduled backup sessions started failing...ive tried a lot of things...like:
a. RSM polling disabling...
b. Tape driver update...
c. Re-installing DP 5
d. Windows robotic driver disabling...
e. Drive clean operations...
f. Backup on new LTO-3 cartridges...
but evreything has failed...
Can somebody please help me out in this regard...
Please...any good idea/suggestion/solution is welcome...
Following is the output of a failed backup session...

------------------------------------------------------------------------
[Warning] From: BSM@cellmanager.xxx "Newbackup" Time: 5/25/2008 5:17:11 PM
Medium 4b01110a:47b14372:0f08:0001 in prealloc list of the device "HP:Ultrium 3-SCSI_1_cellmanager"
is poor.

[Normal] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:17:16 PM
STARTING Media Agent "HP:Ultrium 3-SCSI_1_cellmanager"

[Normal] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:17:19 PM
By: UMA@cellmanager.xxx@Changer0:0:2:0
Loading medium from slot 8 to device Tape0:0:0:1C

[Critical] From: UMA@cellmanager.xxx "HP:MSL6000 Series_cellmanager" Time: 5/25/2008 5:18:05 PM
Changer0:0:2:0
Tape Alert [11]: The voltage supply to the library is outside the specified range.
There is a potential problem with the power supply or failure of a
redundant power supply.

[Normal] From: VBDA@cellmanager.xxx "C:" Time: 5/25/2008 5:18:11 PM
STARTING Disk Agent for cellmanager.xxx:/C "C:".

[Major] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:01 PM
[90:51] Tape0:0:0:1C
Cannot write to device (Details unknown.)

[Critical] From: VBDA@cellmanager.xxx "C:" Time: 5/25/2008 5:20:01 PM
Received ABORT request from SM => aborting.

[Critical] From: VBDA@cellmanager.xxx "C:" Time: 5/25/2008 5:20:01 PM
Connection to Media Agent broken => aborting.

[Normal] From: VBDA@cellmanager.xxx "C:" Time: 5/25/2008 5:20:01 PM
ABORTED Disk Agent for cellmanager.xxx:/C "C:".

[Critical] From: UMA@cellmanager.xxx "HP:MSL6000 Series_cellmanager" Time: 5/25/2008 5:20:05 PM
Changer0:0:2:0
Tape Alert [11]: The voltage supply to the library is outside the specified range.
There is a potential problem with the power supply or failure of a
redundant power supply.

[Major] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:07 PM
[90:161] Cannot write filemark. (Details unknown.)

[Critical] From: UMA@cellmanager.xxx "HP:MSL6000 Series_cellmanager" Time: 5/25/2008 5:20:10 PM
Changer0:0:2:0
Tape Alert [11]: The voltage supply to the library is outside the specified range.
There is a potential problem with the power supply or failure of a
redundant power supply.

[Major] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:14 PM
[90:135] Cannot eject medium. ([1117] The request could not be performed because of an I/O device error. )

[Normal] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:14 PM
Tape0:0:0:1C
Tape Alert [10]: You cannot eject the cartridge because the tape drive
is in use. Wait until the operation is complete before ejecting the cartridge.

[Critical] From: UMA@cellmanager.xxx "HP:MSL6000 Series_cellmanager" Time: 5/25/2008 5:20:14 PM
Changer0:0:2:0
Tape Alert [11]: The voltage supply to the library is outside the specified range.
There is a potential problem with the power supply or failure of a
redundant power supply.

[Critical] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:14 PM
[90:56] Tape0:0:0:1C
Cannot close device (Details unknown.)

[Major] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:14 PM
[90:64] By: UMA@cellmanager.xxx@Changer0:0:2:0
Cannot unload exchanger medium (Details unknown.)

[Normal] From: BMA@cellmanager.xxx "HP:Ultrium 3-SCSI_1_cellmanager" Time: 5/25/2008 5:20:14 PM
ABORTED Media Agent "HP:Ultrium 3-SCSI_1_cellmanager"

[Critical] From: BSM@cellmanager.xxx "Newbackup" Time: 5/25/2008 5:20:14 PM
None of the Disk Agents completed successfully.
Session has failed.

[Normal] From: BSM@cellmanager.xxx "Newbackup" Time: 5/25/2008 5:20:14 PM

Backup Statistics:

Session Queuing Time (hours) 0.00
----------------------------------------
Completed Disk Agents ........ 0
Failed Disk Agents ........... 1
Aborted Disk Agents .......... 0
----------------------------------------
Disk Agents Total ........... 1
========================================
Completed Media Agents ....... 0
Failed Media Agents .......... 1
Aborted Media Agents ......... 0
----------------------------------------
Media Agents Total .......... 1
========================================
Mbytes Total ................. 2 MB
Used Media Total ............. 1
Disk Agent Errors Total ...... 2

==================================================================
==========
Session failed!
==================================================================
==========

Re: MSL 6000 problem

TTr — Sun, 25 May 2008 17:18:12 GMT

> the library was working fine untill one day...when scheduled backup sessions started failing...

Did you consider that there is a HW failure in the tape drive? The backup sessions didn't start failing on their own. A flaky tape drive can cause a lot of problems. Any tape that is getting touched by it because of the retries, it get marked as BAD and a new tapes get loaded and very soon you end up with the whole pool being bad.

Do some read and write tests with the drive by manually loading a non-DP tape to it.

Re: MSL 6000 problem

JurajG — Tue, 03 Jun 2008 17:39:26 GMT

1. did it work before? what has changed? who has changed it?
2. SCSI or fibre attached?
3. can you load a tape using [web interf, OCP] and try LTT write/read test?
4. can devbra -dev correctly detect devices assiging ID to devices?
5. generate a complete LTT support ticket and try to get an overview on clearly visible problems or open HW call with HPCS

br, juraj

topic MSL 6000 problem in StoreEver Tape Storage

MSL 6000 problem

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Re: MSL 6000 problem