vdRead failed with error [16000]

Just started getting some errors in VMWare backups after VMs were storage vmotioned to a newly provisioned LUN.
The Datastore LUN is presented to my Media Agents and I have verified that I can see the LUN on the Media Agents.
Not all VMs on the LUN are having backup issues.

Netbackup 7.6.1.2 or RHEL

I get an error 6 in the Activity Log after the snapshot has been created.  The cleanup of the snapshot is successful.
 

10/23/2015 03:55:06 - Info nbjm (pid=22342) starting backup job (jobid=917452) for client NTBIUT01, policy test_blc, schedule Weekly_Full_Wed_1800
10/23/2015 03:55:06 - estimated 0 kbytes needed
10/23/2015 03:55:06 - Info nbjm (pid=22342) started backup (backupid=NTBIUT01_1445586906) job for client NTBIUT01, policy test_blc, schedule Weekly_Full_Wed_1800 on storage unit blc_copy1 using backup host lxnbumablcp01.conseco.bak
10/23/2015 03:55:07 - started process bpbrm (pid=26518)
10/23/2015 03:55:07 - connecting
10/23/2015 03:55:07 - connected; connect time: 0:00:00
10/23/2015 03:55:10 - begin writing
10/23/2015 03:55:49 - end writing; write time: 0:00:39
10/23/2015 03:57:14 - Info bpbrm (pid=26518) NTBIUT01 is the host to backup data from
10/23/2015 03:57:14 - Info bpbrm (pid=26518) reading file list for client
10/23/2015 03:57:14 - Info bpbrm (pid=26518) starting bpbkar on client
10/23/2015 03:57:14 - Info bpbkar (pid=26521) Backup started
10/23/2015 03:57:14 - Info bpbrm (pid=26518) bptm pid: 26522
10/23/2015 03:57:14 - Info bptm (pid=26522) start
10/23/2015 03:57:15 - Info bptm (pid=26522) using 262144 data buffer size
10/23/2015 03:57:15 - Info bptm (pid=26522) using 30 data buffers
10/23/2015 03:57:16 - Info bptm (pid=26522) start backup
10/23/2015 03:57:49 - Critical bpbrm (pid=26518) from client NTBIUT01: FTL - cleanup() failed, status 6

10/23/2015 03:57:51 - Error bptm (pid=26522) media manager terminated by parent process
10/23/2015 03:57:56 - Info bpbkar (pid=0) done. status: 6: the backup failed to back up the requested files
the backup failed to back up the requested files  (6)

We did note this in the logs

EMCPOWER emcpower_parse_devname        : /nbcm_builds/NB/7.6.1.2/src/vxms/plugin/platforms/linux/osdep_emcpower.c.70 <INFO> : emcpower_parse_devname: is returning with ERROR
   10/22/2015 23:55:50 : vdRead:VixInterface.cpp:693 <ERROR> : Error 17592452332404352 in read with disk handle 46659552 startSector 0 numSectors 1
   10/22/2015 23:55:51 : readFlatSector:VixGuest.cpp:2500 <ERROR> : vdRead failed with error [16000] for [[vmd-pi-526] NTBIUT01/NTBIUT01.vmdk]. Issuing retry 1 of 3
   10/22/2015 23:55:55 : vdRead:VixInterface.cpp:693 <ERROR> : Error 17592452332404352 in read with disk handle 47317568 startSector 0 numSectors 1
   10/22/2015 23:55:56 : readFlatSector:VixGuest.cpp:2500 <ERROR> : vdRead failed with error [16000] for [[vmd-pi-526] NTBIUT01/NTBIUT01.vmdk]. Issuing retry 2 of 3
   10/22/2015 23:56:00 : vdRead:VixInterface.cpp:693 <ERROR> : Error 17592452332404352 in read with disk handle 49823232 startSector 0 numSectors 1
   10/22/2015 23:56:01 : readFlatSector:VixGuest.cpp:2500 <ERROR> : vdRead failed with error [16000] for [[vmd-pi-526] NTBIUT01/NTBIUT01.vmdk]. Issuing retry 3 of 3
   10/22/2015 23:56:05 : vdRead:VixInterface.cpp:693 <ERROR> : Error 17592452332404352 in read with disk handle 47381456 startSector 0 numSectors 1
   10/22/2015 23:56:05 : readFlatSector:VixGuest.cpp:2506 <ERROR> : Exiting with error in reading sector 0x0000000000000000 with sector run 0x0000000000000001 from disk [vmd-pi-526] NTBIUT01/NTBIUT01.vmdk
   10/22/2015 23:56:05 : resolvePartitions:VixGuest.cpp:2173 <ERROR> : Exited with VIX_PLG_EVDISKREAD
   10/22/2015 23:56:05 : resolvePartitions:VixGuest.cpp:2174 <ERROR> : Returning: 1026
   10/22/2015 23:56:05 : vixMapObjCtl:VixCoordinator.cpp:976 <ERROR> : Returning: 1026
   10/22/2015 23:56:05 : vix_map_objctl:libvix.cpp:1206

Ran across this article https://www.veritas.com/support/en_US/article.TECH... but it deals more with an error code 13, not a 6.

Thoughts?