Remote NDMP Restore hangs after media gets positioned.

Article:TECH165098  |  Created: 2011-07-20  |  Updated: 2011-07-20  |  Article URL http://www.symantec.com/docs/TECH165098
Article Type
Technical Solution

Product(s)

Issue



Remote NDMP Restore hangs after media gets positioned.


Error



From the job details

Feb 21, 2011 3:42:08 PM - mounted <media_id>; mount time: 0:00:38
Feb 21, 2011 3:42:09 PM - positioning <media_id> to file 5
Feb 21, 2011 3:42:28 PM - positioned <media_id>; position time: 0:00:19

Restore hangs at this point.


BPTM log (/usr/openv/netbackup/logs/bptm) to just stop immediately after attempting to read the tape information after the mount -

11:21:52.648 [18933] <4> read_backup: begin reading backup id <backup_id> (restore), copy 1, fragment 1, from media id <media_id> on drive <drive_name> (index #)
11:21:52.648 [18933] <2> io_close: closing /usr/openv/netbackup/db/media/tpreq/drive_<drive_name>, from bptm.c.15923
11:21:52.651 [18933] <2> process_tapealert: TapeAlert returned 0x00000000 0x00000000 (from tpunmount)
 


Environment



NetBackup 7.0.1 Master Servers doing NDMP restores to NetBackup 7.0 and lower media servers.


Cause



NetBackup 7.0.1 introduces the ability to perform multiplex backup of remote NDMP servers.
The 6.5.x media server is not capable of performing a multiplex NDMP restore.

 

In the bprd log (/usr/openv/netbackup/logs/bprd) determined that there was a media server at NetBackup 6.5.2 level in this environment -

12:00:40.960 [24775] <2> local_getHostInfo: platform of client 2ksewrwww1.tak.bup is Linux, RedHat2.6
12:00:41.030 [24775] <2> bpcr_get_uname_rqst: bpcr.c: 3777 count=22, buffer=UNAME_SYSNAME = Linux
12:00:41.030 [24775] <2> bpcr_get_uname_rqst: bpcr.c: 3777 count=43, buffer=UNAME_NODENAME = 2ksewrwww1.taketwo.online
....
12:00:41.310 [24775] <2> getPatchLevel: level = >6.5.2<


Solution



Per TechNote TECH145842 the workaround was to create NON_MPX_RESTORE touch file on the master server. This did not work in this case.

Only applying engineering binary for ET2245820 resolved the problem.


Supplemental Materials

SourceETrack
Value2245820
Description

7.0.1 NDMP restore fails with a Status Code 25 from a 6.5.4 media server.


SourceETrack
Value2331618
Description

NDMP remote restore gets as far as positioning tape but then unmounts the tape without restoring anything.




Article URL http://www.symantec.com/docs/TECH165098


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