HP XP Performance Advisor Software - Manual (Page 128)

Components of the Performance Estimator screen
Table 33 lists the components that appear in the Performance Estimator screen.
Table 33 Performance Estimator screen components
Component Description
ACP Pairs The number of Array Control Processor (ACP) pairs.
CHIP Pairs
The number of Client Host Interface Processor (CHIP)
pairs.
Disk Type The number of gigabytes available on the drive.
Low Latency Refers to a light load with less delay.
Moderate Latency Refers to a heavier load with greater delay.
RAID 1
A RAID 1 “array group” consists of four disks
(2D + 2P). Usable capacity is 50% of raw capacity.
RAID 5
A RAID 5 “array group” consists of four disks
(3D + 1P). Usable capacity is 75% of raw capacity.
RAID Group Split
Use this field to adjust the load and gather
performance estimates.
Raw Capacity
Raw capacity is obtained from disk capacity
minus 10%.
R.T. (ms) Response time as expressed in milliseconds.
128 Performance Estimator