Problem with Celerra NDMP backup

[marekkedzierski]

Hi.. I have a problem with backup of EMC Celerra using NDMP.. After successful backup ndmp tape drive path is turned down .. I thought it could be SSO problem so I've created dedicated tape drive only for Celerra but still the same error..

Maybe you know where could I find logs from Celerra regarding tape operations or maybe you had the same errors  ?

marekk

[Karthikeyan_Sun]

Vendor:??

OS:??

Hardware:??

NAS Version:??

Let us know the details!

[marekkedzierski]

EMC Celerra NS20

os type "DartOS" 

os version "EMC Celerra File Server.T.5.6.42.501"

Master/Media Server: Windows 2003 SP2 x86

[Karthikeyan_Sun]

Did you find anything in the Windows Event Log?

[marekkedzierski]

You porbably think about this document..

http://seer.entsupport.symantec.com/docs/279687.htm

But os version on Celerra is much older.

marekk

[Karthikeyan_Sun]

But can u able to find any thing in the Event Log and  bptm logs !

[marekkedzierski]

ltid debug logs shows this:

20:33:20.741 [3520.3524] <4> LtidProcCmd: Pid=476, Data.Pid=476, Type=204, Param1=0, Param2=0, LongParam=0
20:33:20.741 [3520.3524] <6> DownDrivePath: DOWNing path c80t0l0 for HP.ULTRIUM4-SCSI.000 on host ********
20:33:20.741 [3520.3524] <6> WriteEntry: Updating drive HP.ULTRIUM4-SCSI.000 at path c80t0l0 on attach host server_2.***.***
20:33:20.773 [3520.3524] <16> emmlib_NdmpUserIdQuery: (0) queryNdmpCredentials failed, emmError = 2000003, nbError = 0
20:33:20.788 [3520.3524] <16> DownDrivePath: (-) Translating EMM_ERROR_FilerNotExist(2000003) to 328 in the device management context
20:33:20.788 [3520.3524] <6> DownDrivePath: failed retrieving alternative path for drive HP.ULTRIUM4-SCSI.000. retval = 328

It's strange becasue Creditenials are configured properly, I can verify and probe Cellera host.. but for example after 30 minutes after backup NDMP path is turned off and next backup ends with errors because of no drives available. I have to manually change drive state to up to turn on ndmp path.

bptm doesnt show any errors.

marekk

Message Edited by Marek Kedzierski on 01-05-2009 05:14 AM

[marekkedzierski]

Event Application logs for AVR shows this:

ndmp_public_session_create() failed: Unable to retrieve authentication challenge from NDMP server

[Andy_Welburn]

Altho' we don't utilise EMC filers, there certainly appears to be some authentication issue here?

Have trawled thru' the Knowledgebase etc tho' all I could find, that hasn't already been suggested, is the following posting which may be of use:

NDMP ERROR

Have you made any changes recently that may have affected this backup, or is it something that has never worked?