- saving effect
- When the capacity saving function is used, the saving ratio is calculated to include user data, metadata, and garbage data (generated by the system). When the data volume used capacity before the capacity saving processing is smaller than the pool used capacity, the saving ratio might be lower than expected and the saving capacity value might be invalid (a hyphen (-) is displayed).
- software saving
- When you initialize the duplicated data in a pool, the saving effect might be different than expected, at least until after the LDEV format processing has completed. Verify the saving effect only after the duplicated data in a pool has finished initializing.
When a DRS-VOL is used in a Thin Image Advanced pair, saving effect and software saving include the saving effect achieved by the snapshot differential data of the Thin Image Advanced pair.
To verify the formatted capacity of a volume, use FMT_CAP(MB) for the raidcom get pool command.