NDMP Backups to an "EMC Celerra File Server.T.5.4.27.2" with "IBM ULT3580-TD3" directly attached fail with "MOVER_HALTED media write error - reason = 5 (NDMP_MOVER_HALT_MEDIA_ERROR)"

Article:TECH55447  |  Created: 2007-01-12  |  Updated: 2013-09-16  |  Article URL http://www.symantec.com/docs/TECH55447
Article Type
Technical Solution


Environment

Issue



NDMP Backups to an "EMC Celerra File Server.T.5.4.27.2" with "IBM ULT3580-TD3" directly attached fail with "MOVER_HALTED media write error - reason = 5 (NDMP_MOVER_HALT_MEDIA_ERROR)"


Error



MOVER_HALTED media write error - reason = 5 (NDMP_MOVER_HALT_MEDIA_ERROR)


Solution



Observation:
When there is a communication issue between the EMC Filer and the Tape Drives, NetBackup NDMP backups will fail with "media write error".  Check the EMC Server Logs and contact EMC to verify Tape Drive connectivity.

EMC Server Logs:
2007-11-07 16:29:25: CAM: 3:  check_timeout (208) : c208t0l0 req afab4090 timeout (1800 sec 5521446652104 cyc)
func 01 flags 91 stat 00 cdb 3866af16000000000000

2007-11-07 16:29:25: FCP: 3:  c208t0l0: abort called
2007-11-07 16:29:25: DRIVERS: 4:  FCDMTL 3 [1.6.1] Abort received of type 7 from loop ID 129. of exchange 021f
2007-11-07 16:29:25: DRIVERS: 4:  FCDMTL 3 [1.6.1] Initiator command error: loop_id = 1., SCSI status = 0, EXM status = 13
2007-11-07 16:29:25: DRIVERS: 4:  FCDMTL 3 [1.6.1] CALLBACK: LOGOUT - address id 11aab, loop id 129.
 |_SCSI ERR ON #20800    camstat 0x04  bstat DeviceError
2007-11-07 16:29:25: NDMP: 3:  DartTapeInterface: write error
2007-11-07 16:29:25: NDMP: 3:  Tape write error: No error reported .
2007-11-07 16:29:25: NDMP: 3:  Medium error
2007-11-07 16:29:25: NDMP: 3:  < LOG type: 2, msg_id: 0, entry: Medium error, hasAssociatedMsg: 0, associatedMsgSeq: 0 >

Issue:
Arbitrated loops are not supported with DartOS 5.4, however they are supported in DartOS 5.3 and 5.5.  As IBM Ultrium3 drives are not supported until DartOS 5.5, upgrade the DartOS to newest 5.5 code in order to resolve both issues.

Resolution:
Contact EMC to obtain a new version of DartOS that supports both arbitrated loop and LTO3 drives.


 



Legacy ID



294042


Article URL http://www.symantec.com/docs/TECH55447


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