Is the available size displayed in vol show the actual available usable size of the S3 Bucket
Applies to
ONTAP 9
Answer
Yes, the
available size displayed in volume show is the usable available size of the S3 Bucket.Additional Information
- The actual writable capacity of a FabricPool configured S3 bucket is determined by the available space on the underlying ONTAP volume, not the logical size of the S3 bucket.
- In the following sample, the volume command indicates an available capacity of 13.26TB, which is the actual space available for writing new data.
- Although the S3 bucket is configured with a logical size of 340TB, the physical storage backing the volume is the limiting factor.
- The bucket command's reported usage of 299.7TB reflects the logical space used, which can include object metadata and the benefits of thin provisioning.
- However, the vol command's available space takes into account data protection overheads, internal reservations, and space consumed by snapshots, providing a more accurate representation of the physical storage available for additional data.
::> bucket show -vserver XXX -bucket vol1 -fields size,logical-used
vserver bucket size logical-used
-------------- ------ ----- ------------
XXX vol1 340TB 299.7TB
::> vol show -fields size,used,available
vserver volume size available used
-------------- ----------------- ----- --------- -------
XXX fg_XXX 340TB 13.26TB 309.7TB
- To increase the writable capacity, consider the following options:
- Create a new volume with additional capacity or expand the existing volume (resizing or adding more storage).
- Review and adjust snapshot reserve and other reservation settings to increase usable space, while ensuring data protection requirements are maintained.