- Data ONTAP 7-mode
- SnapVault backup involves starting the baseline transfers, making scheduled incremental transfers.
- Baseline transfers are the longest.
- SnapVault is a background process and will throttle back by default with increased user workload on source or destination nodes.
Phases of SnapVault Initialization
|Phase 3||Good throughput occurs as the file data is rapidly transferred and written into the directory structure in the qtree that exists on the destination.|
Why does it look like there is no data is being transferred during SnapVault
Refer back to the Phases of Initialization, if in Phase 2 this phase does not have data transfer while setting up the file structure.
Ways to improve SnapVault performance
- Spread out files in multiple directories.
- Increase the number of disks per raid group. (spindle count)
- Disk types that have faster Revolution Per Minute(RPMS) (FCAL, SATA or SAS) can improve performance.
- The greater the number of files/inodes, the longer the inode processing will take during initialization and updates
- It is not possible to speed up this processing