Provisioning a FlexGroup volume automatically

You can automatically provision a FlexGroup volume. ONTAP creates and configures a FlexGroup volume by automatically selecting the aggregates. Aggregates are selected based on the best practices for optimum performance.

1. Provision the FlexGroup volume:

   If you are using...

   Use this command...

   ONTAP 9.5 or later

   volume create -vserver svm_name -volume fg_vol_name –auto-provision-as flexgroup -size fg_size [–encrypt true] [-qos-policy-group qos_policy_group_name] [-support-tiering true] Starting with ONTAP 9.5, you can create FlexGroup volumes for FabricPool. To automatically provision a FlexGroup volume on FabricPool, you must set the -support-tiering parameter to true . The volume guarantee must be always set to none for FabricPool. You can also specify the tiering policy and tiering minimum cooling period for the FlexGroup volume. Disk and Aggregate Management Guide Starting with ONTAP 9.5, you can specify a throughput ceiling (QoS Max) for FlexGroup volumes, which limits the performance resources that the FlexGroup volume can consume. Starting with ONTAP 9.5, you can specify throughput floors (QoS Min) and adaptive QoS for FlexGroup volumes. Performance management Starting with ONTAP 9.5, you can set the -encrypt parameter to true if you want to enable encryption on the FlexGroup volume. For creating an encrypted volume, you must have installed the volume encryption license and the key manager. Note You must enable encryption on FlexGroup volumes at the time of creation. You cannot enable encryption on existing FlexGroup volumes. Encryption of data at rest

   The size parameter specifies the size of the FlexGroup volume in KB, MB, GB, TB, or PB.

   Example

   The following example shows how to create a QoS policy group for throughput ceiling and how to apply it to a FlexGroup volume:

   cluster1::> qos policy-group create -policy group pg-vs1 -vserver vs1 -max-throughput 5000iops
   

   cluster-1::> volume create -vserver vs0 -volume fg 
   –auto-provision-as flexgroup -size 400TB -qos-policy-group pg-vs1
   Warning: The FlexGroup "fg" will be created with the following number of constituents of size 25TB: 16. 
   The constituents will be created on the following aggregates: aggr1,aggr2
   Do you want to continue? {y|n}: y
   [Job 34] Job succeeded: Successful
   

   The following example shows how to provision a FlexGroup volume of size 400 TB on aggregates in FabricPool in ONTAP 9.5:

   cluster-1::> volume create -vserver vs0 -volume fg 
   –auto-provision-as flexgroup -size 400TB -support-tiering true -tiering-policy auto
   Warning: The FlexGroup "fg" will be created with the following number of constituents of size 25TB: 16. 
   The constituents will be created on the following aggregates: aggr1,aggr2
   Do you want to continue? {y|n}: y
   [Job 34] Job succeeded: Successful
   
   The FlexGroup volume is created with eight constituents on each node in the cluster. The constituents are distributed equally between the two largest aggregates on each node.

   The FlexGroup volume is created with the volume space guarantee except on AFA systems. For AFA systems, the FlexGroup volume is created with the none space guarantee.

2. Optional: Mount the FlexGroup volume with a junction path: volume mount -vserver vserver_name -volume vol_name -junction-path junction_path

   Example

   cluster1::> volume mount -vserver vs0 -volume fg2 -junction-path /fg2
   

# mount -t nfs -o vers=3 192.53.19.64:/fg2 /mnt/fg2
# ls /mnt/fg2
file1  file2