HP StorageWorks XP48 - Disk Array Configuration Manual page 36

Note 1:
Note 2:
Note 3
Note 4:
Note 5:
34
The availability of a disk type depends on the disk array.
The devices are defined to the host as SCSI disk devices, even though the
interface is Fibre Channel.
The device capacity can sometimes be changed by the BIOS or host adapter
board. This may make actual capacity different from that listed in the table.
The number of blocks for a CVS volume is calculated as follows:
# of blocks = (# of cylinders)
Example 1: For an OPEN-3 CVS volume with capacity = 37 MB:
# of blocks = (53 cylinders–see Note 5)
track) = 76320
Example 2: For an OPEN-V CVS volume with capacity = 49 MB:
# of blocks = (53 cylinders–see Note 5)
track) = 101760
The number of cylinders for a CVS volume is calculated as follows ( ...
means that the value should be rounded up to the next integer):
OPEN-3/8/9/E: The number of cylinders for a CVS volume =
# of cylinders = (capacity (MB) specified by user)
Example: For an OPEN-3 CVS volume with capacity = 37 MB:
# of cylinders = 37 1024/720
53 cylinders
OPEN-V: The number of cylinders for a CVS volume =
# of cylinders = (capacity (MB) specified by user)
Example: For an OPEN-V CVS volume with capacity = 49 MB:
# of cylinders = 49 16/15
cylinders
OPEN-3/8/9/E: The number of cylinders for a CVS LUSE volume =
# of cylinders = (capacity (MB) specified by user)
HP StorageWorks Disk Array XP Operating System Configuration Guide: DYNIX/ptx
(# of heads) (# of sectors per track)
(15 heads)
(15 heads)
= 52.62 (rounded up to next integer) =
= 52.26 (rounded up to next integer) = 53
(96 sectors per
(128 sectors per
1024/720
16/15
1024/720 n