Mark,
The setting on the storage unit is set to a max of 40 concurrent backup jobs. The "limit jobs per policy" attribute on the policy itself is unchecked. This particular policy handles backups of VM's on our 5.1 environment, which currently has 34 datastores.
Nagalla,
Please see my response above to Mark about number of VM's backing up at a time. The other answers are below in asterisks.
***********Parent job detail status - *******************
2/17/2014 11:51:14 AM - Info nbjm(pid=17128) starting backup job (jobid=494119) for client PDC00ETST101W, policy Z_test, schedule E-Test
2/17/2014 11:51:14 AM - Info nbjm(pid=17128) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=494119, request id:{52268BAD-7AB1-4181-8EEE-0C15A97F0220})
2/17/2014 11:51:14 AM - requesting resource PDCDD_SU_1
2/17/2014 11:51:14 AM - requesting resource pdc00nbua801w.ohlogistics.com.NBU_CLIENT.MAXJOBS.PDC00ETST101W
2/17/2014 11:51:14 AM - requesting resource pdc00nbua801w.ohlogistics.com.NBU_POLICY.MAXJOBS.Z_test
2/17/2014 11:51:14 AM - granted resource pdc00nbua801w.ohlogistics.com.NBU_CLIENT.MAXJOBS.PDC00ETST101W
2/17/2014 11:51:14 AM - granted resource pdc00nbua801w.ohlogistics.com.NBU_POLICY.MAXJOBS.Z_test
2/17/2014 11:51:14 AM - granted resource MediaID=@aaaae;DiskVolume=PDCDisk2;DiskPool=PDCDD_DP;Path=PDCDisk2;StorageServer=pdc00ddma901;MediaServer=pdc00nbua802w
2/17/2014 11:51:14 AM - granted resource PDCDD_SU_1
2/17/2014 11:51:14 AM - estimated 0 Kbytes needed
2/17/2014 11:51:14 AM - begin Parent Job
2/17/2014 11:51:14 AM - begin VMware, Start Notify Script
2/17/2014 11:51:14 AM - Info RUNCMD(pid=17584) started
2/17/2014 11:51:14 AM - Info RUNCMD(pid=17584) exiting with status: 0
Status 0
2/17/2014 11:51:14 AM - end VMware, Start Notify Script; elapsed time: 00:00:00
2/17/2014 11:51:14 AM - begin VMware, Step By Condition
Status 0
2/17/2014 11:51:14 AM - end VMware, Step By Condition; elapsed time: 00:00:00
2/17/2014 11:51:14 AM - begin VMware, Read File List
Status 0
2/17/2014 11:51:14 AM - end VMware, Read File List; elapsed time: 00:00:00
2/17/2014 11:51:14 AM - begin VMware, Create Snapshot
2/17/2014 11:51:14 AM - started
2/17/2014 11:51:15 AM - Info bpbrm(pid=4936) PDC00ETST101W is the host to backup data from
2/17/2014 11:51:15 AM - Info bpbrm(pid=4936) reading file list from client
2/17/2014 11:51:15 AM - Info bpbrm(pid=4936) start bpfis on client
2/17/2014 11:51:15 AM - Info bpbrm(pid=4936) Starting create snapshot processing
2/17/2014 11:51:15 AM - Info bpfis(pid=4400) Backup started
2/17/2014 11:51:15 AM - started process bpbrm (4936)
2/17/2014 11:51:18 AM - snapshot backup of client PDC00ETST101W using method VMware_v2
2/17/2014 11:52:34 AM - end writing
Status 0
2/17/2014 11:52:34 AM - end VMware, Create Snapshot; elapsed time: 00:01:20
2/17/2014 11:52:34 AM - begin VMware, Policy Execution Manager Preprocessed
Status 0
2/17/2014 12:01:33 PM - end VMware, Policy Execution Manager Preprocessed; elapsed time: 00:08:59
2/17/2014 12:01:33 PM - begin VMware, Validate Image
Status 0
2/17/2014 12:01:33 PM - end VMware, Validate Image; elapsed time: 00:00:00
2/17/2014 12:01:33 PM - begin VMware, Delete Snapshot
2/17/2014 12:01:36 PM - Info bpbrm(pid=3916) Starting delete snapshot processing
2/17/2014 12:01:36 PM - Info bpfis(pid=0) Snapshot will not be deleted
2/17/2014 12:01:36 PM - started process bpbrm (3916)
2/17/2014 12:01:40 PM - Info bpfis(pid=4572) Backup started
2/17/2014 12:02:59 PM - end writing
Status 0
2/17/2014 12:02:59 PM - end VMware, Delete Snapshot; elapsed time: 00:01:26
Status 0
2/17/2014 12:02:59 PM - end Parent Job; elapsed time: 00:11:45
the requested operation was successfully completed(0)
***************Backup job detail status******************
2/17/2014 11:52:34 AM - Info nbjm(pid=17128) starting backup job (jobid=494123) for client PDC00ETST101W, policy Z_test, schedule E-Test
2/17/2014 11:52:34 AM - estimated 0 Kbytes needed
2/17/2014 11:52:34 AM - Info nbjm(pid=17128) started backup (backupid=PDC00ETST101W_1392659554) job for client PDC00ETST101W, policy Z_test, schedule E-Test on storage unit PDCDD_SU_1
2/17/2014 11:52:36 AM - Info bpbrm(pid=7608) PDC00ETST101W is the host to backup data from
2/17/2014 11:52:36 AM - Info bpbrm(pid=7608) reading file list from client
2/17/2014 11:52:36 AM - Info bpbrm(pid=7608) starting bpbkar32 on client
2/17/2014 11:52:36 AM - started process bpbrm (7608)
2/17/2014 11:52:37 AM - Info bpbkar32(pid=9664) Backup started
2/17/2014 11:52:37 AM - Info bptm(pid=6964) start
2/17/2014 11:52:37 AM - Info bptm(pid=6964) using 1048576 data buffer size
2/17/2014 11:52:37 AM - Info bptm(pid=6964) setting receive network buffer to 1048576 bytes
2/17/2014 11:52:37 AM - Info bptm(pid=6964) using 64 data buffers
2/17/2014 11:52:37 AM - connecting
2/17/2014 11:52:37 AM - connected; connect time: 00:00:00
2/17/2014 11:52:41 AM - Info bptm(pid=6964) start backup
2/17/2014 11:52:44 AM - begin writing
2/17/2014 12:01:16 PM - Info bptm(pid=6964) waited for full buffer 856 times, delayed 2908 times
2/17/2014 12:01:16 PM - Info bpbkar32(pid=9664) bpbkar waited 2105 times for empty buffer, delayed 5346 times.
2/17/2014 12:01:29 PM - Info bptm(pid=6964) EXITING with status 0 <----------
2/17/2014 12:01:29 PM - Info bpbrm(pid=7608) validating image for client PDC00ETST101W
2/17/2014 12:01:33 PM - end writing; write time: 00:08:49
the requested operation was successfully completed(0)
*****VCenter version is 5.1.0******
*****This particular media server is also the backup host.****
*****PowerPath is installed on the media server, but is has come to light that even though the policy is set to san, and the jobs complete, it may actually not be backing up over san at all, so multipathing might be a mute point. ;-( ****
*****Backup speed for ms-windows types to DD range from about 210KB/s up to 57MB/s*****