HP XP20000/XP24000 Руководство по конфигурации - Страница 31

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HP XP20000/XP24000 Руководство по конфигурации

Note 4:

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 5:

The number of blocks for a CVS volume is calculated as follows:

# of blocks = (# of cylinders) × (# of heads) × (# of sectors per track)

Example

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

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 6:

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 =

(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 =

(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

Example

For a CVS LUSE volume with capacity = 37 MB and n = 4:

# of cylinders =

OPEN-V: The number of cylinders for a CVS LUSE volume = # of cylinders = (capacity (MB) specified

by user) × 16/15 × n

Example

For an OPEN-V CVS LUSE volume with capacity = 49 MB and n = 4:

# of cylinders =

37 × 1024/720

49 × 16/15

52.26

37 × 1024/720

× 4 =

49 × 16/15

× 4 =

XP Disk Array Configuration Guide for Tru64 UNIX

52.62

× 4 = 53 × 4 = 212

52.26

× 4 = 53 × 4 = 212