HP StorageWorks XP12000 Manual de configuración - Página 40

Note 1:

Note 2:

Note 3:

Note 4:

Note 5:

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) × (# of heads) × (# of sectors per track)

Example 1: For an OPEN-3 CVS volume with capacity = 37 MB:

# of blocks = (53 cylinders–see Note 5) × (15 heads) × (96 sectors per

track) = 76320

Example 2: For an OPEN-V CVS volume with capacity = 49 MB:

# of blocks = (53 cylinders–see Note 5) × (15 heads) × (128 sectors per

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) × 1024/720 ↑

Example: For an OPEN-3 CVS volume with capacity = 37 MB:

# of cylinders = ↑ 37 × 1024/720↑ = ↑ 52.62↑ (rounded up to next integer) =

53 cylinders

OPEN-V: The number of cylinders for a CVS volume =

# of cylinders = ↑ (capacity (MB) specified by user) × 16/15 ↑

Example: For an OPEN-V CVS volume with capacity = 49 MB:

# of cylinders = ↑ 49 × 16/15↑ = ↑ 52.26↑ (rounded up to next integer) = 53

cylinders

OPEN-3/8/9/E: The number of cylinders for a CVS LUSE volume =

# of cylinders = ↑ (capacity (MB) specified by user) × 1024/720 ↑ × n

HP StorageWorks Disk Array XP Operating System Configuration Guide: OpenVMS