Enter the total amount of space required for this volume. Be sure to indicate whether the specified size is in K (kilobytes), M (megabytes), G (gigabytes), or T (terabytes).
Note: The total volume size should include space for the snapshot reserve and file system overhead in addition to the usable space. By default, the snapshot reserve is 20% of the volume. The filer reserves approximately 10% of the total disk space for overhead.
Flexible volumes can be as small as 20 MB. If you attempt to decrease the size of a flexible volume to less than the amount of space that it is currently using, the operations fails.
If the volume has a space guarantee of volume, it can grow to the size you specify as long as the containing aggregate has enough free space to accommodate that growth.
If the volume has a space guarantee of none or file, as it does when you are using an aggregate overcommitment strategy, the volume size is not limited by the aggregate size. In fact, each volume could, if required, be larger than the containing aggregate. The storage provided by the aggregate is used up only as LUNs are created or data is appended to files in the volumes.