HP XP P9500 Storage - Manual (Page 49)

where
•
the value enclosed in ceil( ) must be rounded up to the nearest whole number.
•
calculated-management-area-capacity depends on volume emulation types and
RAID levels (see “Management area capacity of an open-systems volume” (page 49) ).
To calculate the entire capacity of a CV if the data protection level is set to the Enhanced mode
on the SATA drive:
ceil(entire-capacity-of-a-CV(slots) +
calculated-management-area-capacity)
To convert the resulting entire capacity into blocks:
calculated-entire-capacity-of-a-CV(slots) *
capacity-of-a-slot * 2
where
•
calculated-entire-capacity-of-a-CV(slots) means the entire capacity of a CV
if the data protection level is set to the Enhanced mode on the SATA drive.
Management area capacity of an open-systems volume
Management area capacity (KB) Emulation type
None OPEN-V
5,760 OPEN-3
19,440 OPEN-8
19,440 OPEN-9
13,680 OPEN-E
Boundary values for RAID levels other than Enhanced mode on SATA drives
Boundary values of external volumes are always one kilobyte, regardless of RAID levels.
Boundary value (KB) Emulation type
RAID 6 (6D+2P) RAID 5 (7D+1P) RAID 5 (3D+1P) RAID 1 (2D+2D)
2,304 2,688 1,152 768 Other than OPEN-V
3,072 3,584 1,536 1,024 OPEN-V
Boundary values for RAID levels (enhanced data protection level on SATA drives)
A SATA drive supports the OPEN-V emulation type for an open system.
Boundary value (KB) Emulation type
RAID 6 (6D+2P) RAID 5 (7D+1P) RAID 5 (3D+1P) RAID 1 (2D+2D)
24,576 28,672 6,144 2,048 OPEN-V
Capacity of a slot
Capacity (KB) of a slot Emulation type
48 Other than OPEN-V
256 OPEN-V
VLL size calculations 49