HP StorageWorks Disk Array XP operating system configuration guide: SGI IRIX (A5951-96075, December 2005)

Example

When 37 MB is speciﬁedforanOPEN-3CVSvolumefromSVP,thenumberof

cylinders of the OPEN-3 CVS can be calculated as follows:

37×1,024/720=52.62

↑52.62↑ =53

The OPEN-3 CVS volume has 53 cylinders.

2. The value of pa must be equal to or more than 131,072.

3. The number of cylinders of a Logical Unit Size Expansion (LUSE) composed of

OPEN-x CVS volumes corresponds to the capacity speciﬁed by the SVP or the

remote console. CVS size of OPEN-x is speciﬁe d by the capacity (megabyte), not

by the number of cylinders. The number of cylinders of the OPEN-x CVS volume

can be obtained by the following calculation (↑↑means round up to integer):

The number of cylinders = ↑ (speciﬁed capacity in m egabytes from SVP or remote

console) × 1,024 / 720 ↑ × n

where n is the number of conc atenated volumes for LUSE.

Example

When 37 MB is speciﬁed for the OPEN-3 CVS volume and the four volumes are

concatenated, the number of cylinders of the O PEN-3 CVS ca n be calculated as

follows:

↑37 × 1,024 / 720↑ ×4=↑52.62↑ ×4=53×4=212

TheLUSEfortheOPEN-3CVSvolumehas212cylinders.

Disk Array XP operating system conﬁguration guide: SGI I RIX