HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

Supported disk typeArray type
XP12000
Supported disk sizes for performance estimation
The following table lists the XP disk arrays and the disk size they support.
Table 17 Disk types supported for performance estimation
Supported disk size in GBArray type
72 GB disk, 146 GB disk, 300 GB disk, 400 GB disk
XP24000
XP12000
Understanding Performance Estimator data
Following is an example on estimating performance of an XP24000 Disk Array for the following
configuration:
Your inputs:
• Disk type – 15K RPM
• RAID type and RAID groups – 144 RAID groups for RAID 1 (2D+2D)
• Workload – 8K Random Writes
• Intensity – 4096 threads/sec
P9000 Performance Advisor estimates:
• 576 disks of type 146 GB (Number of Disks) are required
• I/Os on the disk set would be 46442/sec
• MB/s that the array can receive per second would be 380 MB
• Time taken for the array to respond (R.T (ms) for the read—write requests would be 91 R.T (ms)
Following is an example on estimating raw and usable capacities of an XP24000 Disk Array:
Your inputs:
• Disk size – 146 GB
• RAID type and RAID groups – 144 RAID groups for RAID 1 (2D+2D)
P9000 Performance Advisor estimates:
• Raw disk capacity would be 84096 GB
• Disk space available for data storage (R1/R5/R6 Usable (GB)) would be 39744 GB
The available disk space shown is only for R1/R5 RAID types.
• Total or the usable storage capacity will be 39744 GB
Based on the above estimate, you can implement this configuration or modify the inputs to receive a
different configuration.
Estimating performance for XP24000 and XP12000 Disk Arrays
To estimate the performance for an XP24000 or XP12000 Disk Array:
Using Performance Estimator for XP disk arrays346