No compression (reporting 0)savings in ONTAP 9.8 or later at the volume level
Applies to
- ONTAP 9.8 or later
- Temperature Sensitive Storage Efficiency (TSSE)
Issue
- All volumes with auto-adaptive inline compression enabled display
0Bcompression in ONTAP 9.8:
::*> aggr show-efficiency -aggregate !*root,!*snaplock -fields volume-compression-saved
aggregate volume-compression-saved
---------------------- ------------------------
aggr1 0B
aggr2 0B- Volume shows deduplication savings, but no space saved by compression:
::*> volume show -volume vol* -fields dedupe-space-saved,dedupe-space-saved-percent,compression-space-saved,compression-space-saved-percent vserver volume dedupe-space-saved dedupe-space-saved-percent compression-space-saved compression-space-saved-percent -------- -------------------- ------------------ -------------------------- ----------------------- ------------------------------- svm1 vol3 111.6GB 7% 0B 0% svm1 vol4 184.2GB 10% 0B 0%
- Attempt to run compression manually fails with error:
::*> volume efficiency start -vserver svm1 -volume vol1 -dedupe true -compression true -compaction true -scan-old-data true
Warning: This operation scans all of the data in volume "vol1" of Vserver "svm1". It might take a significant time, and degrade performance during that time.
Do you want to continue? {y|n}: y
Error: command failed: Failed to start efficiency on volume "vol1" of Vserver "svm1": "-compression" option is not supported on
auto-adaptive compression enabled volumes.