How to understand volume's 'is-sis' related configuration?
Applies to
- ONTAP 9.3 or later
- Automatic volume-level background deduplication on AFF systems
is-sis
related parameters here stand foris-sis-volume
,is-sis-logging-enabled
,is-sis-state-enabled
Answer
is-sis
related parameters will automatically be set to true
only for the volume where the volume efficiency
setting is enabled.
lccls91001::> set diag
Warning: These diagnostic commands are for use by NetApp personnel only.
Do you want to continue? {y|n}: y
lccls91001::*> volume show -fields is-sis-volume,is-sis-logging-enabled,is-sis-state-enabled
vserver volume is-sis-volume is-sis-logging-enabled is-sis-state-enabled
---------- ------------------------------------------ ------------- ---------------------- --------------------
svm91001 vol1 true true true
svm91001 vol1clone true true true
svm91001 vol2 false false false
svm91001 vol4 false false false
lccls91001::*> volume efficiency show
Vserver Volume State Status Progress Policy
---------- ---------------- --------- ----------- ------------------ ----------
svm91001 vol1 Enabled Idle Idle for 10:36:16 -
svm91001 vol1clone Enabled Idle Idle for 10:36:16 -
2 entries were displayed.
Notes :
is-sis-volume
can betrue
if the volume has clones OR dedupe enabled OR a snap restore has happened on the volume.is-sis-logging-enabled
istrue
only if dedupe is enabled on that volume.- On deprioritized volumes,
is-sis-logging-enabled
isfalse
butis-sis-volume
andis-sis-state-
enabled
can still keeptrue
. - Users can promote the deprioritized volume to re-participate in an automatic background deduplication using the
volume efficiency promote
command available at the advanced privilege level.
- On deprioritized volumes,