VMware incremental backups fail with status 13,84 to MSDP storage unit (deduplication). Error 2060022 (software error) appears in the pdplugin log.

Article:TECH194989  |  Created: 2012-08-15  |  Updated: 2013-02-20  |  Article URL http://www.symantec.com/docs/TECH194989
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Article Type
Technical Solution


Environment

Issue



VMware backups are failing with status 84 to MSDP storage unit (deduplication) after an upgrade to NetBackup 7.5.0.3


Error



From the Job Details:
25/06/2012 01:00:00 - Info nbjm(pid=4124) starting backup job (jobid=17199) for client client.example.net, policy VMWARE-ESX-SP, schedule Daily
25/06/2012 01:00:00 - Info nbjm(pid=4124) requesting MEDIA_SERVER_ONLY resources from RB for backup job (jobid=17199, request id:{B48EEF31-9E7A-4FDD-9C19-A2585431AD66})
25/06/2012 01:00:00 - requesting resource stu_dedup_sp
25/06/2012 01:00:00 - requesting resource pmanbusp.NBU_CLIENT.MAXJOBS.client.example.net
25/06/2012 01:00:00 - requesting resource pmanbusp.NBU_POLICY.MAXJOBS.VMWARE-ESX-SP
25/06/2012 01:00:01 - granted resource pmanbusp.NBU_CLIENT.MAXJOBS.client.example.net
25/06/2012 01:00:01 - granted resource pmanbusp.NBU_POLICY.MAXJOBS.VMWARE-ESX-SP
25/06/2012 01:00:07 - estimated 521242 Kbytes needed
25/06/2012 01:00:07 - begin Parent Job
25/06/2012 01:00:07 - begin Application Resolver, Start Notify Script
25/06/2012 01:00:07 - Info RUNCMD(pid=5276) started
25/06/2012 01:00:23 - end Application Resolver, Resolver Discovery; elapsed time: 00:00:16
25/06/2012 01:00:23 - begin Application Resolver, Policy Execution Manager Preprocessed
Status 84
25/06/2012 06:02:00 - end Application Resolver, Policy Execution Manager Preprocessed; elapsed time: 05:01:37
25/06/2012 06:02:00 - begin Application Resolver, Stop On Error
Status 0
25/06/2012 06:02:00 - end Application Resolver, Stop On Error; elapsed time: 00:00:00
25/06/2012 06:02:00 - begin Application Resolver, End Notify Script
25/06/2012 06:02:00 - Info RUNCMD(pid=7396) started
25/06/2012 06:02:00 - Info RUNCMD(pid=7396) exiting with status: 0
Status 0
25/06/2012 06:02:00 - end Application Resolver, End Notify Script; elapsed time: 00:00:00
Status 84
25/06/2012 06:02:00 - end Parent Job; elapsed time: 05:01:53
media write error(84)

The pdplugin log will show messages similar to:
07/20/12 11:47:35 [3964] [7660] [DEBUG] PDSTS: fbu_fill_bitmap: (1304)
stream_offset=9250666496, file_offset=1024, length=1024, fsize=518
07/20/12 11:47:35 [3964] [7660] [ERROR] PDSTS: fbu_fill_bitmap: (1303)
stream_offset(9250665984) + length(1024) > (1304) stream_offset(9250666496)
07/20/12 11:47:35 [3964] [7660] [ERROR] PDSTS: fbu_scan_buf: fbu_fill_bitmap()
failed (2060022:software error)

 

The VxMS logs will show:
Begin:vfm_get_extent [11:47:18.0976 : ]
In: offset=0   numExtent=1   numExtent=1 
Out:
maxext=1  retext=1
vfm_extent_t { byteoff = 18664390144 length = 512  flags = 256 mdnode = NULL
objid =(<vix>[STG_INF_VMS_01] PMASM201/PMASM201_1.vmdk)   }

End:(0)

Begin:vfm_get_extent [11:47:18.0976 : ]
In: offset=512   numExtent=1   numExtent=1 
Out:
maxext=1  retext=1
vfm_extent_t { byteoff = 18664390656 length = 512  flags = 256 mdnode = NULL
objid =(<vix>[STG_INF_VMS_01] PMASM201/PMASM201_1.vmdk)   }


Environment



This issue has been reported on NetBackup versions 7.5.0.3 and 7.5.0.4.


Cause



VMware incremental backups fail with status 13,84 to MSDP STU only, because of reading same byteoffset for the same file more than once.

 


Solution



The formal resolution for this issue (Etrack 2876252) is included in the following release:

  • NetBackup 7.5 Maintenance Release 5 (7.5.0.5)

NetBackup 7.5.0.5 is now available - please access the Related Article below for more information.

Workaround:
An Emergency Engineering Binary (EEB) replacement for the libstspipd library is available which contains a fix for this issue.  Please contact Symantec technical support, referencing this document and Etrack 2954551 (7.5.0.4).


Supplemental Materials

SourceETrack
Value2876252
Description

Type 5: VMware incremental backups fail with status 13,84 to MSDP STU only- need a 7.5.0.3 version of the binary


SourceError Code
Value84
Description

media write error




Article URL http://www.symantec.com/docs/TECH194989


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