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NVP vProxy: Understanding VMware VM backup levels and sizes shown in NetWorker

Summary: This KB provides a general overview of how VMware VM backup levels and sizes that are reported in NetWorker.

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Instructions

NetWorker supports the following backup levels for VMware VMs:
  • Full - Entire VM is backed up.
  • Incremental - Only changes since previous full or incremental backups are written to disk. Incremental data is calculated by VMware Change Block Tracking (CBT).
  • Skip - No backup is performed.
  • Logs Only - Only used for SQL backups that are performed with MSVMAPPAGENT. This is used to only backup the database transaction logs.
 The backup level is set in the backup action:
image.png
 

Virtual Synthetic Full:

NetWorker only supports backing up directly to a Data Domain disk device; once on the Data Domain, the data can be cloned (copied) to tape, Cloud Boost, or other supported clone devices. This also means that data must be cloned (copied) back to a Data Domain device to perform recoveries. 

Since the backup is performed to Data Domain, the resulting backup on the target device is a new full backup regardless of the backup level performed. NetWorker uses Data Domain virtual synthetic technology to create a synthetic full backup. This means that any backup can be used for a full image restore if needed. Since all backups are "virtual synthetic fulls," NetWorker supports scheduling "forever incremental" backups for VMs; however, the first backup of any VM is performed as level full. 

Monitoring:

VM backup levels appear as level "full" in NetWorker regardless of the backup level scheduled. For example, the NetWorker Management Console's (NMC) monitoring window shows:

image.png

The save set details as seen in the NetWorker server's media database (mm) show levels full: mminfo -kot

[root@nsr ~]# mminfo -kvot
 volume        type   client           date     time         size ssid      fl   lvl name
VMBackupPool.002 Data Domain vcsa.amer.lan 09/26/2024 09:00:10 PM 114 GB 3824550812 cr full vm:503ea434-0331-8ed6-8b19-b9cd408cce7a:vcsa.amer.lan
VMBackupPool.002 Data Domain vcsa.amer.lan 09/26/2024 09:00:11 PM 104 GB 3807773596 cr full vm:503ebedd-f10f-3109-3a01-ab59180c700a:vcsa.amer.lan
VMBackupPool.002 Data Domain vcsa.amer.lan 09/26/2024 09:00:12 PM 104 GB 3790996380 cr full vm:503e73d1-0586-cc5a-6748-fa3dc7d54047:vcsa.amer.lan
VMBackupPool.002 Data Domain vcsa.amer.lan 09/26/2024 09:00:13 PM 104 GB 3774219164 cr full vm:503ebd5c-db03-255f-b9c4-ec4bf6738647:vcsa.amer.lan
VMBackupPool.002 Data Domain vcsa.amer.lan 09/26/2024 09:00:14 PM 104 GB 3757441948 cr full vm:503e47a3-d13b-64cd-df1a-9184f0ffd45e:vcsa.amer.lan

The expanded mminfo details will report the backup level performed:

mminfo -S -q ssid=SSID

For example:

[root@nsr ~]# mminfo -S -q ssid=3790996380
ssid=3790996380 savetime=09/26/2024 09:00:12 PM (1727398812) vcsa.amer.lan:vm:503e73d1-0586-cc5a-6748-fa3dc7d54047:vcsa.amer.lan
  level=full   sflags=vrF      size=107479425880 files=1          insert=09/26/2024
  create=09/26/2024 complete=09/26/2024 browse=10/03/2024 09:00:10 PM retent=10/03/2024 11:59:59 PM
  clientid=0bc290fc-00000004-6663510c-6663794c-00085000-592bbe56
         **backup start time: 1727398812;
              *backup_device: Data Domain;
                *backup_mode: VSS;
         *occupiedvmdiskutil: 16584376320;
         *policy action name: "backup: 1727398811";
                *policy name: "VMware Protection: 1727398811";
       *policy workflow name: "Full VM: 1727398811";
*policy_workflow_action_path: /VMware Protection/Full VM/backup;
             *proxy_hostname: nsr-vproxy01.amer.lan;
*ss data domain backup cloneid: 1727398811;
*ss data domain dedup statistics: "v1:1727398811:107438073630:53930194:52145905";
             *SSID directory: Yes;
            *totalvmdiskutil: 106648563712;
           *vcenter_hostname: vcsa.amer.lan;
            *vm_backup_level: incr;
                    *vm_info: \
...
...

 

VM Backup Size:

Regardless if nsrcapinfo or mminfo is used, the VM backups always display the full provisioned size of the VM in VMware. It does not reflect the amount of data backed up in an incremental backup. For example, a VM shows a provisioned space of 100 GB in VMware:

image.png

In NetWorker, there is a discrepancy in the size of the VM shown by mminfo or nsrcapinfo when compared to the size of the VM shown in VMware.

[root@nsr ~]# mminfo -kot -q vmname=win-client01.amer.lan
 volume        type   vm_name         date     time         size ssid      fl backup_size
VMBackupPool.001 Data Domain win-client01.amer.lan 09/23/2024 05:10:00 PM 104 GB 4260485415 cr 104 GB
VMBackupPool.002 Data Domain win-client01.amer.lan 09/23/2024 05:39:24 PM 104 GB 4210155532 cr 104 GB
VMBackupPool.002 Data Domain win-client01.amer.lan 09/23/2024 09:00:11 PM 104 GB 4109504283 cr 104 GB
VMBackupPool.002 Data Domain win-client01.amer.lan 09/24/2024 10:41:44 AM 104 GB 3941781417 cr 104 GB
VMBackupPool.002 Data Domain win-client01.amer.lan 09/24/2024 09:00:13 PM 104 GB 3807600797 cr 104 GB
VMBackupPool.002 Data Domain win-client01.amer.lan 09/25/2024 09:00:10 PM 104 GB 4143231516 cr 104 GB
VMBackupPool.002 Data Domain win-client01.amer.lan 09/26/2024 09:00:12 PM 104 GB 3790996380 cr 104 GB

In VMware, the size of the VM is bytes in binary kilo (1024) from bytes; whereas, in NetWorker, the size of the VM is shown in metric kilo (1000) from KiB. Binary kilo is in units of KiB, MiB, GiB, TiB and so forth. Metric kilo units are in KB, MB, GB, TB, and so forth.
 

NOTE: It does not accurately represent the amount of data sent per backup. See Data Saved Per Backup section.


When converting a VM save sets size in bytes to binary kilo, the size matches what is reported in VMware.

Run the following mminfo command with an expanded sumsize column. The expanded sumsize column shows the provisioned size in bytes instead of the converted unit size.

mminfo -kot -q vmname=vm_name -r "savetime,ssid,sumsize(15)"

Example:

[root@nsr ~]# mminfo -kot -q vmname=win-client01.amer.lan -r "savetime,ssid,sumsize(15)"
  date   ssid                  size
...
09/26/2024 3790996380   107479425880

The unit shown in NetWorker is Bytes. To match VMware, bytes must be converted to a binary kilo unit (GiB):

Size_in_Bytes / 1024 = KiB / 1024 = MiB / 1024 = GiB

Example:

107479425880 Bytes / 1024 = 104960376.83 KiB / 1024 = 102500.36 MiB / 1024 = 100.09 GiB

Once converted to binary kilo we can see that the size is a near 1:1 match between NetWorker and VMware. 

NetWorker 19.9.0 and later:

NetWorker 19.9.0 along with vProxy 4.3.0-46 (and later) added functionality to capture the total provisioned size of all disk drives and the total space usage of the data/files of a VM during VM backups. This data is viewable for backups completed after using 19.9 & 4.3.0-46 using two new mminfo -r flags.
  • totalvmdiskutil - Shows the total provisioned size (in bytes) of all disks drives configured on the VM.
  • occupiedvmdiskutil - Total space occupied (in bytes) by the data/files on the VM.
mminfo -kot -r "vmname(20),ssid,savetime,totalvmdiskutil,occupiedvmdiskutil"
 vm_name            ssid         date totalvmdiskutil occupiedvmdiskutil
winclient02         4249867714 05/01/2023 96058994688 39817691136
linuxclient01       4233090498 05/01/2023 15435038720 8569937920
NOTE: This data only represents the configured size of the VM and how much disk space is used by the VM at the time of backup. It does not reflect the amount of data sent to the Data Domain during the backup.

Data Saved Per Backup:

mminfo output:


The full mminfo report for a save set will show the "Changed Bytes" of each VMDK on the VM. This represents the amount of data backed up in the save set specified. 

1. Get the SSID of a VM backup:

mminfo -kot -q vmname=VM_NAME

2. Output the full mminfo report for the save set:

mminfo -aS -q ssid=SSID

Example:

root@lnx-nwserv:~# mminfo -aS -q ssid=2463462732
....
  \"disks\": [
    {
      \"display-name\": \"Hard disk 1\",
      \"datastore\": \"esx01-datastore\",
      \"datastore-moref\": \"datastore-11\",
      \"disk-key\": 2000,
      \"size-kb\": 104857600,
      \"thin\": true,
      \"disk_mode\": \"persistent\",
      \"disk_stats\": {
        \"Statistics\": {
          \"ProvisionedBytes\": 107374182400,
          \"UsedBytes\": 28354609152,
          \"ChangedBytes\": 166723584,
          \"SecondsTaken\": 67
        },
        \"DDStatistics\": {
          \"PreClientCompBytes\": 122079139,
          \"PostClientCompBytes\": 35083803,
          \"TotalSegments\": 18984,
          \"RedundantSegments\": 4798
        },
        \"BaseFileName\": \"[esx01-datastore] win-client01/win-client01.vmdk\"\

      }
    },
    {
      \"display-name\": \"Hard disk 2\",
      \"datastore\": \"esx01-datastore\",
      \"datastore-moref\": \"datastore-11\",
      \"disk-key\": 2001,
      \"size-kb\": 15728640,
      \"thin\": true,
      \"disk_mode\": \"persistent\",
      \"disk_stats\": {
        \"Statistics\": {
          \"ProvisionedBytes\": 16106127360,
          \"UsedBytes\": 16087384064,
          \"ChangedBytes\": 589824,
          \"SecondsTaken\": 28
        },
        \"DDStatistics\": {
          \"PreClientCompBytes\": 219923,
          \"PostClientCompBytes\": 36245,
          \"TotalSegments\": 62,
          \"RedundantSegments\": 35
        },
        \"BaseFileName\": \"[esx01-datastore] win-client01/win-client01_1.vmdk\
\"
...

Session Logs:

The amount of data that is backed up is reported in the summary of each backup session log: 
2022-10-20T02:04:57Z INFO:   [@(#) Build number: 54] DiskStats: Disk Label    |  Mode  | Bytes Moved |  Read Rate   |  Write Rate  |     Overhead  |   VDDK Wait   |   Total Time  | VM MORef  | VM Name                       
2022-10-20T02:04:57Z INFO:   [@(#) Build number: 54] DiskStats: ------------- | ------ | ----------- | ------------ | ------------ | ------------- | ------------- | ------------- | --------- | ------------------------------
2022-10-20T02:04:57Z INFO:   [@(#) Build number: 54] DiskStats: Total | | 8 GiB | 107 MiB/s | 293 MiB/s | 0:00:37 | 0:00:19 | 0:03:44 | vm-7002 | winclient02

These logs are available on the NetWorker server under /nsr/logs/polict/policy_name/workflow_name/
The session logs are also stored on the vProxy under: /opt/emc/vproxy/runtime/logs/recycle/vbackupd/

NOTE: The "DiskStats" are a rounded up value. The value shown is rounded up to the nearest next unit, in the above example this is GiB. The "ChangedBytes" information in the session logs or mminfo output reports the exact number of bytes which were sent during the backup.

Operating system commands (grep/Select-String) can be used to list the Total DiskStats per VM backup session instead of reviewing log files one by one. The size shown can help determine the amount of data sent during the VM backup. 
  • NetWorker server policy logs follow jobsdb rotation (72 hours default); after this time has passed, the backup logs are removed from the server.
  • vProxy backup session logs do not follow jobsdb rotation and reside on the vProxy for weeks/months depending on vProxy activity and space usage.
  • This information also displays the throughput of the backup session. 

Linux NetWorker server:

# grep -rnw "DiskStats: Total" /nsr/logs/policy/VMware/Image-Protection/ | grep -v "0 Bytes"
NOTE: This command outputs the disk stats of all VM backups but excludes any results where the backup did not send any data (no change). 
root@lnx-nwserv:~# grep -rnw "DiskStats: Total" /nsr/logs/policy/VMware/Image-Protection/ | grep -v "0 Bytes"
/nsr/logs/policy/VMware/Image-Protection/000020-lnx_client02-2024-2-5-11-32-42.log:662:2024-02-05T16:32:40Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       8 GiB |    113 MiB/s |    244 MiB/s |       0:00:17 |       0:00:35 |       0:02:23 | vm-1010  | lnx-client02
/nsr/logs/policy/VMware/Image-Protection/000021-lnx_nwserv-2024-2-5-11-33-25.log:668:2024-02-05T16:33:22Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      11 GiB |     72 MiB/s |    134 MiB/s |       0:00:17 |      157.0 ms |       0:03:06 | vm-4005| lnx-nwserv
/nsr/logs/policy/VMware/Image-Protection/000023-win_client01-2024-2-5-11-34-18.log:664:2024-02-05T16:34:14Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      19 GiB |    104 MiB/s |    265 MiB/s |       0:00:17 |       0:00:18 |       0:03:58 | vm-1009  | win-client01
/nsr/logs/policy/VMware/Image-Protection/000022-win_sql01-2024-2-5-11-35-59.log:670:2024-02-05T16:35:58Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      26 GiB |    104 MiB/s |    318 MiB/s |       0:00:17 |        1.8 us |       0:04:49 | vm-1012   | win-sql01
/nsr/logs/policy/VMware/Image-Protection/000024-lnx_client01-2024-2-5-11-44-12.log:663:2024-02-05T16:44:09Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       8 GiB |    112 MiB/s |    359 MiB/s |       0:00:16 |       0:00:16 |       0:01:59 | vm-1008  | lnx-client01
/nsr/logs/policy/VMware/Image-Protection/000025-win_client02-2024-2-5-11-45-7.log:666:2024-02-05T16:45:05Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      16 GiB |    112 MiB/s |    366 MiB/s |       0:00:16 |       71.2 ms |       0:02:55 | vm-1011 | win-client02
/nsr/logs/policy/VMware/Image-Protection/000026-win_sql02-2024-2-5-11-47-32.log:670:2024-02-05T16:47:27Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      21 GiB |     92 MiB/s |    350 MiB/s |       0:00:17 |        1.3 us |       0:04:44 | vm-1013   | win-sql02
/nsr/logs/policy/VMware/Image-Protection/032065-lnx_client02-2024-2-5-23-2-13.log:665:2024-02-06T04:02:10Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       5 GiB |     61 MiB/s |    338 MiB/s |       0:00:16 |      185.8 ms |       0:01:54 | vm-1010 | lnx-client02
/nsr/logs/policy/VMware/Image-Protection/032062-lnx_client01-2024-2-5-23-2-18.log:670:2024-02-06T04:02:15Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       5 GiB |     61 MiB/s |    333 MiB/s |       0:00:17 |       88.2 ms |       0:01:59 | vm-1008 | lnx-client01
/nsr/logs/policy/VMware/Image-Protection/032066-lnx_nwserv-2024-2-5-23-2-44.log:666:2024-02-06T04:02:39Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       5 GiB |     53 MiB/s |    326 MiB/s |       0:00:17 |       0:00:17 |       0:02:22 | vm-4005   | lnx-nwserv
/nsr/logs/policy/VMware/Image-Protection/032064-win_sql02-2024-2-5-23-5-29.log:672:2024-02-06T04:05:24Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       9 GiB |     55 MiB/s |    217 MiB/s |       0:00:17 |       82.6 ms |       0:04:50 | vm-1013   |win-sql02
/nsr/logs/policy/VMware/Image-Protection/032067-win_sql01-2024-2-5-23-5-30.log:674:2024-02-06T04:05:24Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       9 GiB |     52 MiB/s |    249 MiB/s |       0:00:17 |       0:00:33 |       0:05:07 | vm-1012   |win-sql01
/nsr/logs/policy/VMware/Image-Protection/032063-win_client02-2024-2-5-23-5-58.log:669:2024-02-06T04:05:56Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      11 GiB |     57 MiB/s |    279 MiB/s |       0:00:17 |       0:00:17 |       0:05:22 | vm-1011 | win-client02
/nsr/logs/policy/VMware/Image-Protection/032068-win_client01-2024-2-5-23-6-9.log:672:2024-02-06T04:06:07Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      12 GiB |     54 MiB/s |    226 MiB/s |       0:00:17 |        1.6 us |       0:04:56 | vm-1009| win-client01
/nsr/logs/policy/VMware/Image-Protection/096083-lnx_client01-2024-2-6-23-1-24.log:665:2024-02-07T04:01:19Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       4 MiB |      4 MiB/s |    312 MiB/s |       0:00:17 |        957 ns |       0:01:04 | vm-1008| lnx-client01
/nsr/logs/policy/VMware/Image-Protection/096086-lnx_client02-2024-2-6-23-2-31.log:671:2024-02-07T04:02:29Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       4 GiB |     52 MiB/s |    150 MiB/s |       0:00:16 |        1.2 us |       0:02:13 | vm-1010| lnx-client02
/nsr/logs/policy/VMware/Image-Protection/096084-win_client02-2024-2-6-23-3-11.log:668:2024-02-07T04:03:09Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       3 GiB |     39 MiB/s |    216 MiB/s |       0:00:16 |       72.9 ms |       0:02:24 | vm-1011| win-client02
/nsr/logs/policy/VMware/Image-Protection/096088-win_sql01-2024-2-6-23-3-14.log:668:2024-02-07T04:03:12Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       5 GiB |     55 MiB/s |    236 MiB/s |       0:00:17 |      141.7 ms |       0:02:39 | vm-1012   | win-sql01
/nsr/logs/policy/VMware/Image-Protection/096085-win_sql02-2024-2-6-23-3-16.log:666:2024-02-07T04:03:09Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       3 GiB |     38 MiB/s |    233 MiB/s |       0:00:16 |       0:00:16 |       0:02:35 | vm-1013   | win-sql02
/nsr/logs/policy/VMware/Image-Protection/096089-win_client01-2024-2-6-23-3-38.log:668:2024-02-07T04:03:31Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       3 GiB |     34 MiB/s |    214 MiB/s |       0:00:17 |        1.1 us |       0:02:24 | vm-1009| win-client01
/nsr/logs/policy/VMware/Image-Protection/096087-lnx_nwserv-2024-2-6-23-3-55.log:670:2024-02-07T04:03:50Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       7 GiB |     53 MiB/s |    238 MiB/s |       0:00:17 |       0:00:17 |       0:03:18 | vm-4005   | lnx-nwserv

Windows NetWorker server (PowerShell):

Select-String -Path "C:\Program Files\EMC NetWorker\nsr\logs\policy\POLICY-NAME\WORKFLOW-NAME\*.log" -Pattern 'DiskStats: Total'

Example:

PS C:\Users\Administrator> Select-String -Path "C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\*.log" -Pattern 'DiskStats: Total'

C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\320072-winclient02-2023-2-27-19-5-37.log:767:2023-02-28T03:06:53Z INFO:   [@(#) Build number: 40] DiskStats: Total         |        |       8 GiB |     71 MiB/s |    219 MiB/s |       0:00:37 |        2.1 us |       0:05:01 | vm-7002   | winclient02
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\320073-linuxclient01-2023-2-27-19-1-12.log:648:2023-02-28T03:02:27Z INFO:   [@(#) Build number: 40] DiskStats: Total         |        |     105 MiB |     11 MiB/s |     65 MiB/s |       0:00:18 |        1.4 us |       0:00:55 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\320392-winclient02-2023-2-28-19-4-44.log:766:2023-03-01T03:05:59Z INFO:   [@(#) Build number: 40] DiskStats: Total         |        |       7 GiB |     83 MiB/s |    241 MiB/s |       0:00:37 |        2.2 us |       0:04:05 | vm-7002   | winclient02
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\320393-linuxclient01-2023-2-28-19-1-7.log:646:2023-03-01T03:02:24Z INFO:   [@(#) Build number: 40] DiskStats: Total         |        |      21 MiB |      7 MiB/s |     46 MiB/s |       0:00:18 |        996 ns |       0:00:49 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\320600-linuxclient01-2023-3-1-9-4-3.log:647:2023-03-01T17:05:17Z INFO:   [@(#) Build number: 40] DiskStats: Total         |        |      92 MiB |     11 MiB/s |     71 MiB/s |       0:00:18 |        1.4 us |       0:00:51 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\320605-linuxclient01-2023-3-1-9-10-41.log:646:2023-03-01T17:11:56Z INFO:   [@(#) Build number: 40] DiskStats: Total         |        |     960 KiB |     16 MiB/s |    188 MiB/s |       0:00:18 |        876 ns |       0:00:29 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\737498-winclient01-2022-10-17-19-1-0.log:637:2022-10-18T02:01:14Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |     0 Bytes |      0 MiB/s |      0 MiB/s |          0 ns |          0 ns |       0:00:03 | vm-5001   | winclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\737499-linuxclient01-2022-10-17-19-1-20.log:647:2022-10-18T02:01:36Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |     116 MiB |     12 MiB/s |     62 MiB/s |       0:00:18 |      247.1 ms |       0:00:59 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\737500-winclient02-2022-10-17-19-3-43.log:767:2022-10-18T02:04:00Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |       8 GiB |    122 MiB/s |    286 MiB/s |       0:00:37 |       0:00:18 |       0:03:24 | vm-7002   | winclient02
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\737861-winclient01-2022-10-18-19-1-11.log:637:2022-10-19T02:01:25Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |     0 Bytes |      0 MiB/s |      0 MiB/s |          0 ns |          0 ns |       0:00:02 | vm-5001   | winclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\737862-linuxclient01-2022-10-18-19-1-8.log:646:2022-10-19T02:01:25Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |      28 MiB |      7 MiB/s |     49 MiB/s |       0:00:18 |      241.6 ms |       0:00:49 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\737863-winclient02-2022-10-18-19-3-47.log:765:2022-10-19T02:04:07Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |       8 GiB |    117 MiB/s |    296 MiB/s |       0:00:37 |       0:00:18 |       0:03:30 | vm-7002   | winclient02
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\738211-winclient01-2022-10-19-19-0-59.log:637:2022-10-20T02:01:51Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |     0 Bytes |      0 MiB/s |      0 MiB/s |          0 ns |          0 ns |       0:00:03 | vm-5001   | winclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\738212-linuxclient01-2022-10-19-19-1-19.log:646:2022-10-20T02:02:09Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |      93 MiB |     10 MiB/s |     78 MiB/s |       0:00:19 |      536.2 ms |       0:00:57 | vm-2002   | linuxclient01
C:\Program Files\EMC NetWorker\nsr\logs\policy\Gold\VMware\738213-winclient02-2022-10-19-19-4-5.log:765:2022-10-20T02:04:57Z INFO:   [@(#) Build number: 54] DiskStats: Total         |        |       8 GiB |    107 MiB/s |    293 MiB/s |       0:00:37 |       0:00:19 |       0:03:44 | vm-7002   | winclient02

 vProxy Appliance:

# grep -rnw "DiskStats: Total" /opt/emc/vproxy/runtime/logs/recycle/vbackupd/ | grep -v "0 Bytes"
NOTE: This command outputs the disk stats of all VM backups but excludes any results where the backup did not send any data (no change). 
vproxy01:~ # grep -rnw "DiskStats: Total" /opt/emc/vproxy/runtime/logs/recycle/vbackupd/ | grep -v "0 Bytes"
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240205_1/BackupVmSessions-0e0d3479-5a7f-4bbf-badc-6613eed75184.log:664:2024-02-05T16:34:14Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      19 GiB |    104 MiB/s |    265 MiB/s |       0:00:17 |       0:00:18 |       0:03:58 | vm-1009   | win-client01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240205_1/BackupVmSessions-d22ac361-80c5-4d5e-a3ba-73290bdf2c2a.log:670:2024-02-05T16:35:58Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      26 GiB |    104 MiB/s |    318 MiB/s |       0:00:17 |        1.8 us |       0:04:49 | vm-1012   | win-sql01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240205_1/BackupVmSessions-2319829e-e2a6-4b83-b98a-08f4daa53d90.log:662:2024-02-05T16:32:40Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       8 GiB |    113 MiB/s |    244 MiB/s |       0:00:17 |       0:00:35 |       0:02:23 | vm-1010   | lnx-client02
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240205_1/BackupVmSessions-bb51e601-1ca6-4c8c-a08f-c8997459271f.log:668:2024-02-05T16:33:22Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      11 GiB |     72 MiB/s |    134 MiB/s |       0:00:17 |      157.0 ms |       0:03:06 | vm-4005   | lnx-nwserv
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240206_1/BackupVmSessions-f91c253f-0cca-4398-bb82-0d5adce5fc58.log:830:2024-02-06T09:03:03Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |     146 MiB |     10 MiB/s |    174 MiB/s |       0:00:17 |        2.2 us |       0:01:00 | vm-1012   | win-sql01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240206_1/BackupVmSessions-0dba89ea-d8e7-4184-946d-1ca8e43a9f0a.log:672:2024-02-06T04:06:07Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |      12 GiB |     54 MiB/s |    226 MiB/s |       0:00:17 |        1.6 us |       0:04:56 | vm-1009   | win-client01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240206_1/BackupVmSessions-2d4ab7ff-b523-42be-92f3-03b48a5ea42c.log:665:2024-02-06T04:02:10Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       5 GiB |     61 MiB/s |    338 MiB/s |       0:00:16 |      185.8 ms |       0:01:54 | vm-1010   | lnx-client02
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240206_1/BackupVmSessions-f2b57a78-9427-4da6-a0c0-b395b5baed78.log:666:2024-02-06T04:02:39Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       5 GiB |     53 MiB/s |    326 MiB/s |       0:00:17 |       0:00:17 |       0:02:22 | vm-4005   | lnx-nwserv
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240206_1/BackupVmSessions-a3a50143-4541-479b-8290-2fdb6de4b60b.log:674:2024-02-06T04:05:24Z INFO:   [@(#) Build number: 185] DiskStats: Total         |        |       9 GiB |     52 MiB/s |    249 MiB/s |       0:00:17 |       0:00:33 |       0:05:07 | vm-1012   | win-sql01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240207_1/BackupVmSessions-7bab71a7-6ed3-474e-894f-0d704e746627.log:670:2024-02-07T04:03:50Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       7 GiB |     53 MiB/s |    238 MiB/s |       0:00:17 |       0:00:17 |       0:03:18 | vm-4005   | lnx-nwserv
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240207_1/BackupVmSessions-e233c1d2-b792-431e-820f-a6915f56f86e.log:825:2024-02-07T09:01:57Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |      81 MiB |      8 MiB/s |    151 MiB/s |       0:00:17 |        5.1 us |       0:00:52 | vm-1012   | win-sql01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240207_1/BackupVmSessions-ab52e4b3-e28c-47c5-8402-8d19760b2172.log:668:2024-02-07T04:03:31Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       3 GiB |     34 MiB/s |    214 MiB/s |       0:00:17 |        1.1 us |       0:02:24 | vm-1009   | win-client01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240207_1/BackupVmSessions-300b8139-6340-4578-a282-a5a3616f2c6d.log:668:2024-02-07T04:03:12Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       5 GiB |     55 MiB/s |    236 MiB/s |       0:00:17 |      141.7 ms |       0:02:39 | vm-1012   | win-sql01
/opt/emc/vproxy/runtime/logs/recycle/vbackupd/20240207_1/BackupVmSessions-53ad630b-2585-44d2-a9fa-e66bc14abe1f.log:671:2024-02-07T04:02:29Z INFO:   [@(#) Build number: 39] DiskStats: Total         |        |       4 GiB |     52 MiB/s |    150 MiB/s |       0:00:16 |        1.2 us |       0:02:13 | vm-1010   | lnx-client02

Additional Information

nsrcapinfo:

NVP vProxy: nsrcapinfo is reporting the provisioned size of VMs

Data Domain SS dedupe statistics:

The expanded save set details display the Data Domain statistics for the save set:

mminfo -S -q ssid=ssid

mminfo -S -q ssid=3720041881
ssid=3720041881 savetime=12/16/2021 10:04:55 AM (1639667095) vcenter67.emclab.local:vm:50272f26-fc0c-0ea9-5c8e-bd6c90e7ec48:vcenter67.emclab.local
  level=full   sflags=vrF      size=42991639100  files=1          insert=12/16/2021
  create=12/16/2021 complete=12/16/2021 browse=12/23/2021 10:04:53 AM retent=12/23/2021 11:59:59 PM
  clientid=962f7c00-00000004-5f0741a9-5f074d91-00085000-585ebb56
         **backup start time: 1639667095;
              *backup_device: Data Domain;
                *backup_mode: VSS;
         *policy action name: "backup: 1639667097";
                *policy name: "VMware: 1639667097";
       *policy workflow name: "VC67_Manual: 1639667097";
*policy_workflow_action_path: /VMware/VC67_Manual/backup;
             *proxy_hostname: nvpvproxy1.emclab.local;
*ss data domain backup cloneid: 1639667097;
*ss data domain dedup statistics: "v1:1639667097:42949704234:26758:15517";
             *SSID directory: Yes;
           *vcenter_hostname: vcenter67.emclab.local;
            *vm_backup_level: incr;
                    *vm_info: \
...

The "ss data domain deduplication statistics" line shows the following: "save time (epoch): save set size (bytes): Post deduplication (bytes): Post compression (bytes)"
The vm_backup_level line shows the backup level performed. If the there is a clone copy of the save set which resides on another Data Domain, you will see two "ss data domain dedup statistics" lines.


For additional information see the NetWorker VMware Integration Guide available through: https://www.dell.com/support/home/product-support/product/networker/docs
NVP vProxy: Troubleshooting VM Backup and Restore Performance and Throughput

Affected Products

NetWorker

Products

NetWorker Family, NetWorker Series
Article Properties
Article Number: 000197202
Article Type: How To
Last Modified: 27 Sept 2024
Version:  20
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