Is turn volume efficiency ON/OFF equal to enable/disable the in-line compression?
Applies to
ONTAP 9.x
Answer
No.
After disabled the volume efficiency, the in-line compression will be disabled too.
cluster2::> vol efficiency off -vserver * -volume *
Efficiency for volume "vol0" of Vserver "cluster2-01" is disabled.
[Job 59] Job succeeded: Successful
Efficiency for volume "dstsvm1_root" of Vserver "dstsvm1" is disabled.
Efficiency for volume "dstvol1" of Vserver "dstsvm1" is disabled.
[Job 60] Job succeeded: Successful
Efficiency for volume "dstsvm2_root" of Vserver "dstsvm2" is disabled.
Efficiency for volume "dstvol2" of Vserver "dstsvm2" is disabled.
Efficiency for volume "svm1_root" of Vserver "svm1" is disabled.
8 entries were acted on.
cluster2::> vol efficiency show -fields compression , inline-compression , state
vserver volume state compression inline-compression
----------- ------ -------- ----------- ------------------
cluster2-01 vol0 Disabled false false
dstsvm1 dstfg1 Disabled false false
dstsvm1 dstsvm1_root Disabled false false
dstsvm1 dstvol1 Disabled false false
dstsvm2 dstfg2 Disabled false false
dstsvm2 dstsvm2_root Disabled false false
dstsvm2 dstvol2 Disabled false false
svm1 svm1_root Disabled false false
8 entries were displayed.
But After re-enable the volume efficiency, the in-line compression will not be re-enabled.
cluster2::> vol efficiency on -vserver * -volume *
Efficiency for volume "vol0" of Vserver "cluster2-01" is enabled.
[Job 61] Job succeeded: Successful
Efficiency for volume "dstsvm1_root" of Vserver "dstsvm1" is enabled.
Efficiency for volume "dstvol1" of Vserver "dstsvm1" is enabled.
[Job 62] Job succeeded: Successful
Efficiency for volume "dstsvm2_root" of Vserver "dstsvm2" is enabled.
Efficiency for volume "dstvol2" of Vserver "dstsvm2" is enabled.
Efficiency for volume "svm1_root" of Vserver "svm1" is enabled.
8 entries were acted on.
cluster2::> vol efficiency show -fields compression , inline-compression , state
vserver volume state compression inline-compression
----------- ------ ------- ----------- ------------------
cluster2-01 vol0 Enabled false false
dstsvm1 dstfg1 Enabled false false
dstsvm1 dstsvm1_root Enabled false false
dstsvm1 dstvol1 Enabled false false
dstsvm2 dstfg2 Enabled false false
dstsvm2 dstsvm2_root Enabled false false
dstsvm2 dstvol2 Enabled false false
svm1 svm1_root Enabled false false
8 entries were displayed.
We still need to run the command to re-enable the in-line compression.
cluster2::> vol efficiency modify -vserver * -volume * -compression true -inline-compression true
Error: command failed on vserver "cluster2-01" volume "vol0": Failed to modify efficiency configuration for volume "vol0" of Vserver "cluster2-01": Compression is not allowed on a root volume.
Warning: Do you want to continue running this command? {y|n}: y
Warning: Enabling compression on a secondary volume is strongly discouraged. If compression is enabled on a secondary volume, storage efficiency present on the source will not be preserved during
replication. The destination system needs to run offline storage efficiency scanner (compression and deduplication) to achieve storage savings. Additional compression savings on the destination
comes at a cost of extra computation resources. In environments where there is a lot of shared data present on the source, (virtualized environments employing file clones), data inflation during
transfer may lead to failed backups due to lack of space on the secondary volume.
Do you want to continue? {y|n}: y
[Job 63] Job succeeded: Successful
Info: volume "dstvol1" of vserver "dstsvm1" is a SnapVault destination and the following volume efficiency schedule attributes are not applicable - "Job Schedule", "Duration", and "Enabled".
[Job 64] Job succeeded: Successful
Info: volume "dstvol2" of vserver "dstsvm2" is a SnapVault destination and the following volume efficiency schedule attributes are not applicable - "Job Schedule", "Duration", and "Enabled".
7 entries were modified.
cluster2::> vol efficiency show -fields compression , inline-compression , state
vserver volume state compression inline-compression
----------- ------ ------- ----------- ------------------
cluster2-01 vol0 Enabled false false
dstsvm1 dstfg1 Enabled true true
dstsvm1 dstsvm1_root Enabled true true
dstsvm1 dstvol1 Enabled true true
dstsvm2 dstfg2 Enabled true true
dstsvm2 dstsvm2_root Enabled true true
dstsvm2 dstvol2 Enabled true true
svm1 svm1_root Enabled true true
8 entries were displayed.
Additional Information
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