NVP vProxy: VM-sikkerhetskopiering sikkerhetskopierer ikke-allokert diskplass som endret data

Summary: NetWorker VMware Protection (NVP) Virtual Machine (VM)-sikkerhetskopieringer utføres. Under sikkerhetskopieringer beregnes ledige diskplasser som endrede data og skrives til Data Domain, noe som fører til tregere sikkerhetskopieringsytelse enn forventet. ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Symptoms

En virtuell maskin har for eksempel følgende diskkonfigurasjon og -bruk:

Disknummer Klargjort Ledig plass
1 149 GB 94 GB
2 14 TB 12,3 TB
3 899 GB 595 GB
4 249 GB 241 GB
5 74 GB 10 GB

Under VM-sikkerhetskopieringer loggføres følgende i loggen for VM-sikkerhetskopieringsøkten:

YYYY-MM-DDT22:00:26Z INFO:   [94] Queried CBT data relative to '52 68 e2 45 c1 72 2a 28-60 2b 7c d3 20 2f b1 7c/45', for 'Hard disk 1'.
YYYY-MM-DDT22:00:27Z NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDT22:00:27Z NOTICE: [94] Used bytes = 160410107904, changed bytes = 113753849856, change rate = 070.91%.
YYYY-MM-DDT22:00:27Z INFO:   [94] File block exclusion: No objects to exclude from the backup
YYYY-MM-DDT22:00:29Z NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDT22:00:29Z INFO:   [94] Queried CBT data relative to '52 c5 cb 19 01 05 07 a7-33 ad 3c 83 ed ae 88 f3/45', for 'Hard disk 2'.
YYYY-MM-DDT22:00:29Z NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDT22:00:29Z NOTICE: [94] Used bytes = 15393120845824, changed bytes = 14654092869632, change rate = 095.20%.
YYYY-MM-DDT22:00:29Z INFO:   [94] File block exclusion: No objects to exclude from the backup
YYYY-MM-DDT22:00:29Z NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDT22:00:29Z INFO:   [94] Queried CBT data relative to '52 cd 0c c4 5d e0 d4 23-7a c3 98 f3 cc 1f 45 63/45', for 'Hard disk 3'.
YYYY-MM-DDT22:00:29Z NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDT22:00:29Z NOTICE: [94] Used bytes = 966305775616, changed bytes = 965150244864, change rate = 099.88%.
YYYY-MM-DDT22:00:29Z INFO:   [94] File block exclusion: No objects to exclude from the backup
YYYY-MM-DDT22:00:30Z NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDT22:00:30Z INFO:   [94] Queried CBT data relative to '52 eb e8 e1 8c 3d ea 1d-ff 5d 73 da 9e 91 d0 39/48', for 'Hard disk 4'.
YYYY-MM-DDTHH:MM:SSZ NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDTHH:MM:SSZ NOTICE: [94] Used bytes = 268405047296, changed bytes = 263489847296, change rate = 098.17%.
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] File block exclusion: No objects to exclude from the backup
YYYY-MM-DDTHH:MM:SSZ NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] Queried CBT data relative to '52 f7 ec 4d 6b 8e fb bb-93 5b 29 53 9a 78 6e e0/45', for 'Hard disk 5'.
YYYY-MM-DDTHH:MM:SSZ NOTICE: [94] Blocks were realigned to 0 KB boundary.
YYYY-MM-DDTHH:MM:SSZ NOTICE: [94] Used bytes = 78411005952, changed bytes = 32001884160, change rate = 040.81%.
…
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Disk Label    |  Mode  | Bytes Moved |  Read Rate   |  Write Rate  |     Overhead  |   VDDK Wait   |   Total Time  | VM MORef  | VM Name                       
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: ------------- | ------ | ----------- | ------------ | ------------ | ------------- | ------------- | ------------- | --------- | ------------------------------
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Hard disk 3   | hotadd |     899 GiB |    491 MiB/s |    179 MiB/s |       0:00:17 |        4.4 us |       1:27:52 | vm-11883  | VM_NAME                  
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Hard disk 4   | hotadd |     246 GiB |    559 MiB/s |    238 MiB/s |       0:00:18 |        4.1 us |       0:21:06 | vm-11883  | VM_NAME                  
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Hard disk 1   | hotadd |     106 GiB |    776 MiB/s |    222 MiB/s |       0:00:19 |        4.5 us |       0:10:29 | vm-11883  | VM_NAME                  
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Hard disk 5   | hotadd |      30 GiB |    662 MiB/s |    147 MiB/s |       0:00:19 |        4.5 us |       0:04:12 | vm-11883  | VM_NAME                  
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Hard disk 2   | hotadd |      14 TiB |    604 MiB/s |    252 MiB/s |       0:00:20 |        5.1 us |      16:01:26 | vm-11883  | VM_NAME                  
YYYY-MM-DDTHH:MM:SSZ INFO:   [94] DiskStats: Total         |        |      15 TiB |    596 MiB/s |    245 MiB/s |       0:01:36 |       22.7 us |      18:05:08 | vm-11883  | VM_NAME

 

MERK: Nesten hele den klargjorte plassen på noen disker beregnes som endret byte, til tross for at det i noen tilfeller er mer enn 50 % ledig diskplass.

 

Du finner loggene for VM-sikkerhetskopieringsøkten på vProxy under:

  • /opt/emc/vproxy/runtime/logs/recycle/vbackupd/date

 

MERK: Du finner også logger for VM-sikkerhetskopieringsøkter på NetWorker-serveren. NetWorker-serverloggene er imidlertid underlagt jobsdb retention (72 timer, standard). Dette betyr at 72 timer etter fullføring av øktloggene fjernes fra serveren. vProxy-loggene påvirkes ikke av jobsdb retention.

 

  • Linux:/nsr/logs/policy/PolicyName/WorkflowName/
  • Windows: ..\Program Files\EMC NetWorker\nsr\logs\policy\PolicyName\WorkflowName

Cause

Dette problemet oppstår utenfor NetWorker. Inkrementelle sikkerhetskopier beregnes ved hjelp av VMware Change Block Tracking (CBT).

Resolution

Tilbakestill Endring av blokksporing (CBT) for virtuelle maskiner som observerer dette problemet.

Se VMware-dokumentasjon: Tilbakestille endret blokksporing for virtuelle VMware vSphere-maskiner (2139574) (ekstern lenke)

Det anbefales å bruke VMware-støtte hvis hjelp med denne prosedyren er nødvendig, og undersøke eventuelle problemer som observeres med CBT. 

Additional Information

Hvis du vil ha mer informasjon om sikkerhetskopieringsnivåer og hvordan de vises i NetWorker, kan du se:
NVP vProxy: Forstå VMware VM-sikkerhetskopieringsnivåer som vises i NetWorker

Affected Products

NetWorker

Products

NetWorker Family
Article Properties
Article Number: 000202274
Article Type: Solution
Last Modified: 15 يوليو 2026
Version:  4
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.