Calculating fixed-size
volume size (CV capacity unit is MB)
To calculate the user area capacity of a CV whose capacity unit is defined as megabytes:
ceil(ceil(user-specified-CV-capacity * 1024 / capacity-of-a-slot) / 15) * capacity-of-a-slot * 15
where
- the value enclosed in
ceil( )must be rounded up to the nearest whole number. - user-specified-CV-capacity is expressed in megabytes.
- capacity-of-a-slot is expressed in kilobytes (256 KB for OPEN-V).
- The resulting user area capacity is expressed in kilobytes.
To calculate the entire capacity of a CV:
ceil((user-area-capacity + management-area-capacity) / boundary-value) * boundary-value / 1024
where
- The value enclosed in
ceil( )must be rounded up to the nearest whole number. - user-area-capacity is expressed in kilobytes.
- management-area-capacity is expressed in kilobytes. The management area capacity depends on the device emulation type (0 KB for OPEN-V).
- boundary-value is expressed in kilobytes. The boundary value depends on the device emulation type and RAID level (see Boundary values of volumes).
- The resulting entire capacity is expressed in megabytes.
