Moving Data from Non-Tiered Volumes to Tier Enabled Volumes
Provides a synopsis of how to move data from non-tiered volumes to tier-enabled volumes.
Non-tiered volumes cannot be offloaded.
Use the following procedure to transfer data from a non-tiered volume to a fresh tiered volume, and then offload the data from the tiered volume.
If you are short on space, you can first break up large volumes into multiple small volumes.
You can then transfer one sub-volume at a time.
For example, assume that there are sub-volumes /hugevolume/dir1
,
/hugevolume/dir2
, …, /hugevolume/dirN
. To transfer:
- Create a new tiering enabled volume say
dir1
. - Mount it at
/tmp/dir1
. - Snapshot
/hugevolume/dir1
. - Use
distcp
to copy the snapshot to/tmp/dir1
. - After the initial transfer, perhaps snapshot again and use rsync to sync the changes to
/tmp/dir1
to minimize downtime. - Delete
/hugevolume/dir1
. - Unmount the
dir1
volume and re-mount at/hugevolume/dir1
. - Now
/hugevolume/dir1
will tier according to the schedule and rule specified when creating it in step 1. - Repeat the process for dir2 to dirN.