Performance tuning
MSDP spad process has a retention cache. It saves the data container's retention time. When data container's retention time is less than retentionCacheTimeThreshold, it does not deduplicate again to quick reclaim the storage. If it has dedupe, the retention time can be extended and cannot be deleted.
The config items are in cloudlsu.cfg,
Parameter | Descripiton | Default value |
|---|---|---|
retentionCacheSizeThreshold | Maximum number of data container's retention information is saved in the retention cache. Minimum number saves the memory. | 10000000 |
retentionCacheTimeThreshold | When data container retention time is less than this threshold, it does not dedupe again. | 432000 |