Calculation of a 3390-X volume size

Provisioning Guide for Mainframe Systems for VSP One Block 85

Version
10.5.x
Audience
anonymous
Part Number
MK-26VSP1B034-02
ft:lastEdition
2026-05-04

Use this formula to calculate the entire capacity of a CV (emulation type 3390-X). The resulting CV capacity is expressed in megabytes.

Note: 3390-X indicates 3390-1, 3390-2, 3390-3, 3390-9, 3390-L, and 3390-M.
ceiling( (ceiling( (user-specified-CV-capacity + management-area-capacity) 
/ 1113) * 7 * 15 + (user-specified-CV-capacity + management-area-capacity) * 15) 
/ 672) * 672 * capacity-of-a-slot) / 1024

where

  • The value enclosed in ceiling( ) must be rounded up to the nearest whole number.
  • The user-specified-CV-capacity (expressed in cylinders) is the capacity of the user area in the CV.
  • The capacity-of-a-slot is 58 KB for all mainframe volume emulation types.
  • The management-area-capacity (expressed in cylinders) depends on the volume emulation type.