We recently just upgraded from 7.7.2 to 8.1.2 and we have been experiencing this issue where some VMs in the policy will run and others will fail with 6 and 156.
VMs will flip flop with failure and succeed but all have this in its job details:
Sep 2, 2019 8:24:11 PM - Info nbjm (pid=49500) starting backup job (jobid=324433) for client xxxxxxx, policy VSPHERE_VMIP_DMZ_xxxxxxx, schedule Diff-Incr
Sep 2, 2019 8:24:11 PM - Info nbjm (pid=49500) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=324433, request id:{62E04202-A3F2-4555-BE68-5B2325894649})
Sep 2, 2019 8:24:11 PM - requesting resource DataDomain
Sep 2, 2019 8:24:11 PM - requesting resource xxxxxxxx.NBU_CLIENT.MAXJOBS.xxxxxx
Sep 2, 2019 8:24:11 PM - granted resource xxxxxxx.NBU_CLIENT.MAXJOBS.xxxxxxxxx
Sep 2, 2019 8:24:11 PM -granted resource MediaID=@aaaab;DiskVolume=xxxxxxxx;DiskPool=xxxxxxx;Path=xxxxxxxx;StorageServer=xxxxxdedupe;MediaServer=xxxxx
Sep 2, 2019 8:24:11 PM - granted resource xxxxxxx
Sep 2, 2019 8:24:11 PM - estimated 128863274 kbytes needed
Sep 2, 2019 8:24:11 PM - Info nbjm (pid=49500) started backup (backupid=xxxx_1567470251) job for client xxxxx, policy VSPHERE_VMIP_DMZ_xxxxx, schedule Diff-Incr on storage unit xxxxxx using backup host xxxxxxx
Sep 2, 2019 8:24:11 PM - started process bpbrm (pid=289432)
Sep 2, 2019 8:24:12 PM - Info bpbrm (pid=289432) xxxxxx is the host to backup data from
Sep 2, 2019 8:24:12 PM - Info bpbrm (pid=289432) reading file list for client
Sep 2, 2019 8:24:13 PM - Info bpbrm (pid=289432) accelerator enabled
Sep 2, 2019 8:24:16 PM - Info bpbrm (pid=289432) starting bpbkar32 on client
Sep 2, 2019 8:24:16 PM - connecting
Sep 2, 2019 8:24:16 PM - connected; connect time: 0:00:00
Sep 2, 2019 8:24:31 PM - Info bpbkar32 (pid=288800) Backup started
Sep 2, 2019 8:24:32 PM - Info bpbkar32 (pid=288800) accelerator enabled backup, archive bit processing:<disabled>
Sep 2, 2019 8:24:33 PM - Info bptm (pid=293528) start
Sep 2, 2019 8:24:33 PM - Info bptm (pid=293528) using 1048576 data buffer size
Sep 2, 2019 8:24:33 PM - Info bptm (pid=293528) setting receive network buffer to 4195328 bytes
Sep 2, 2019 8:24:33 PM - Info bptm (pid=293528) using 256 data buffers
Sep 2, 2019 8:24:36 PM - Info bptm (pid=293528) start backup
Sep 2, 2019 8:24:38 PM - begin writing
Sep 2, 2019 8:26:52 PM - Info bpbkar32 (pid=288800) INF - Backing up vCenter server xxxxxxx, ESX host xxxxxxxx, BIOS UUID sxxx, Instance UUID xxxxx, Display Name xxxxx, Hostname xxxxxxxxxx
Sep 2, 2019 8:28:20 PM - Info bpbkar32 (pid=288800) accelerator sent 0 bytes out of 0 bytes to server, optimization 0.0%
Sep 2, 2019 8:28:20 PM - Info bptm (pid=293528) waited for full buffer 1 times, delayed 14136 times
Sep 2, 2019 8:28:20 PM - Info bptm (pid=293528) EXITING with status 90 <----------
Sep 2, 2019 8:28:21 PM - Info bpbkar32 (pid=288800) bpbkar waited 0 times for empty buffer, delayed 0 times.
Sep 2, 2019 8:28:23 PM - Error bpbrm (pid=289432) could not send server status message to client
Sep 2, 2019 8:28:26 PM - Critical bpbrm (pid=289432) unexpected termination of client xxxxxxxxx
Sep 2, 2019 8:28:26 PM - Info bpbkar32 (pid=0) done. status: 6: the backup failed to back up the requested files
Sep 2, 2019 8:28:26 PM - end writing; write time: 0:03:48
User backup failed (6)
