HP XP12000 User Manual

Page 64

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66

HP StorageWorks Disk Array XP Operating System Configuration Guide: HP-UX

Note 1:

The availability of a disk type depends on the disk array.

Note 2:

The devices are defined to the host as SCSI disk devices, even though the
interface is Fibre Channel.

Note 3:

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.

Note 4:

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

Note 5:

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) Ч 1024/720 ↑ Ч n

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