HP XP7 Storage - Manual (Page 37)

TIP:
•
To calculate the capacity of the CV of 3390-A, apply the multiples of 1,113 cylinders to
user-specified CV capacity in the upper formula. For instance, if you want to apply 1 cylinder
to user-specified CV capacity, apply 1,113 cylinders. If you want to apply 1,114 cylinders
to user-specified CV capacity, apply 2,226 cylinders..
•
In 3390-A, if a value is specified that exceeds 65,520 cylinders, the value is corrected to
multiples of 1,113 cylinders. For instance, if 65,521 is specified, 65,667 which is 59 times
1,113 cylinders appears.
Calculating the size of a 3390-V volume
To calculate the entire capacity of a CV, use the following formulas. For the
user-specified-CV-capacity
, specify the capacity of the user area in a CV.
The resulting CV capacity is expressed in megabytes:
( ceil ( (user-specified-CV-capacity * 15) / 672)
* 672 * capacity-of-a-slot ) / 1024
•
The value enclosed in ceil( ) must be rounded up to the nearest whole number.
•
The user-specified-CV-capacity is the capacity of the user area in a CV expressed
in cylinders.
•
The capacity-of-a-slot is expressed in kilobytes. The capacity-of-a-slot value
depends on volume emulation types (see
“Capacity of a slot” (page 39) ).
TIP:
•
To calculate the capacity of the CV of 3390-V, apply the multiples of 44.8 cylinders to
user-specified CV capacity in the upper formula. For instance, if you want to apply 44 cylinder
to user-specified CV capacity, apply 44.8 cylinders. If you want to apply 45 cylinders to
user-specified CV capacity, apply 89.6 cylinders.
•
In 3390-V, the value specified in the Create LDEVs window is corrected to multiples of 44.8
cylinders (38,976 KB) and rounded down to the nearest whole number of cylinders.
Calculating the size of a 3390-X volume
TIP: 3390-X indicates 3390-1, 3390-2, 3390-3, 3390-9, 3390-L, and 3390-M.
To calculate the entire capacity of a CV, use the following formulas. For the
user-specified-CV-capacity
, specify the capacity of the user area in a CV.
The resulting CV capacity is expressed in megabytes:
( ceil( ceil( (user-specified-CV-capacity + management-area-capacity) / 1113)
* 7 * 15 + (user-specified-CV-capacity + management-area-capacity)
* 15) / 672 * capacity-of-a-slot) / 1024
•
The value enclosed in ceil( ) must be rounded up to the nearest whole number.
•
The user-specified-CV-capacity is the capacity of the user area in a CV expressed
in cylinders.
•
The management-area-capacity is expressed in cylinders (see “Management area
capacity of a mainframe volume” (page 38) ).
•
The capacity-of-a-slot is expressed in kilobytes. The capacity-of-a-slot value
depends on volume emulation types (see
“Capacity of a slot” (page 39) ).
Virtual LVI size calculations 37