Seeing how much data in a volume is inactive enables you to make good use of storage tiers. Information in inactive data reporting helps you decide which aggregate to use for FabricPool, whether to move a volume in to or out of FabricPool, or whether to modify the tiering policy of a volume.
Before you begin
You must be running ONTAP 9.4 or later to use the inactive data reporting functionality.
About this task
Inactive data reporting is not supported on some aggregates:
- Inactive data reporting is enabled by default on all SSD aggregates in ONTAP 9.6.
- Inactive data reporting is enabled by default on FabricPool aggregate in ONTAP 9.4 and ONTAP 9.5.
- You can enable inactive data reporting on non-FabricPool aggregates using the ONTAP CLI, including HDD aggregates, beginning with ONTAP 9.6.
- You cannot enable inactive data reporting when FabricPool cannot be enabled; for example, root aggregates, MetroCluster aggregates running ONTAP versions earlier than 9.7, Flash Pool (hybrid aggregates, or SnapLock aggregates.
Procedure
-
If the aggregate for which you want to see inactive data reporting is not used in FabricPool, enable inactive data reporting for the aggregate by using the storage aggregate modify command with the -is-inactive-data-reporting-enabled true parameter.
cluster1::> storage aggregate modify -aggregate aggr1 -is-inactive-data-reporting-enabled true
You need to explicitly enable the inactive data reporting functionality on an aggregate that is not used for FabricPool.
You cannot and do not need to enable inactive data reporting on a FabricPool-enabled aggregate because the aggregate already comes with inactive data reporting. The -is-inactive-data-reporting-enabled parameter does not work on FabricPool-enabled aggregates.
The -fields is-inactive-data-reporting-enabled parameter of the storage aggregate show command shows whether inactive data reporting is enabled on an aggregate.
- To display how much data is inactive on a volume, use the volume show command with the -fields performance-tier-inactive-user-data,performance-tier-inactive-user-data-percent parameter.
cluster1::> volume show -fields performance-tier-inactive-user-data,performance-tier-inactive-user-data-percent
vserver volume performance-tier-inactive-user-data performance-tier-inactive-user-data-percent
------- ------ ----------------------------------- -------------------------------------------
vsim1 vol0 0B 0%
vs1 vs1rv1 0B 0%
vs1 vv1 10.34MB 0%
vs1 vv2 10.38MB 0%
4 entries were displayed.