The following limitations exist when backing up data to a NearStore secondary storage system using NetBackup software:
- NetBackup checkpoint restarts are not supported. If a backup fails, the backup is discarded and the next backup operation resends all of the previous data.
- DSU backups cannot be replicated to a tertiary storage system using synchronous SnapMirror, semi-synchronous SnapMirror, Qtree SnapMirror, or SnapVault.
- You cannot replicate data you backed up using NetBackup to a tape using NDMP or native dump command; however, NetBackup Inline Tape Copy or the NetBackup Vault option can be used to create redundant copies of the NetBackup backup images.
- NDMPcopy is not supported to migrate SnapVault for NetBackup
volumes.
- Maximum supported volume size is as follows:
- FAS3020
system—1 TB
- FAS3040 system—3 TB
- FAS3050 system—2 TB
- R200 system—4 TB
- FAS3070 system—6 TB
- FAS3140 system—3 TB
- FAS3160 system—16 TB
- FAS3170 system—10 TB
- FAS6030 system—10 TB
- FAS6040
system—10 TB
- FAS6070 system—16 TB
- FAS6080 system—16 TB
- A volume that contains NetBackup client data cannot be shared with non-NetBackup client data, for example, data backed up by another NetApp storage system
using SnapVault replication.
- Only FlexVol volumes are supported; traditional volumes and WORM volumes are not supported.
- There is typically a space overhead of about one percent of the size of the backed up data.
- When backing up a dataset that consists of mostly small files (files less than 10 KB), storage efficiency decreases due to NetBackup to Data ONTAP block alignment overhead.
- When one node handles requests for both nodes (that is, the system is running in takeover mode), the observed throughput to each of the nodes might be affected, because the two nodes are now sharing the resources of a single storage system.
SnapVault for NetBackup is not supported with Symantec Veritas NetBackup 6.5.
Due to a software problem with NetBackup 6.5, SnapVault for NetBackup does not work with NetBackup 6.5. Symantec has fixed this problem in NetBackup 6.5.1. SnapVault for NetBackup works with NetBackup 6.0 MP5 or later, or NetBackup 6.5.1.
