HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

Example 1. Determining the disk space requirements for XP Performance Advisor
Consider that XP arrays 10055 and 10090 are monitored by the XP Performance Advisor management
station.
• 10055 XP array details:
• LDEVs = 1703
• PORTs = 96
• Dkc_Collection_frequency = 300 seconds (5 * 60)
• Ldev_Collection_frequency = 600 seconds (10 * 60)
• Port_Collection_frequency = 600 seconds (10 * 60)
Free_Space on 10055 array = [(86400/600) *1703 * 0 .0002] + [(86400/ 600) * 96
* 0.00008] + [(86400/300) * 0.0002] = 49.04 + 1.1 + 0.05 = 50.19 MB
• 10090 XP array details:
• LDEVs = 2554
• PORTs = 32
• Dkc_Collection_ frequency = 300 seconds (5 * 60)
• Ldev_Collection_ frequency = 900 seconds (15 * 60)
• Port_Collection_ frequency = 600 seconds (10 * 60)
Free_Space on 10090 array = [(86400/900) *2554 * 0 .0002] + [(86400/ 600 ) *
32 * 0.00008 ]+[(86400/300) * 0.0002] = 49.03 + 0.36 + 0.05 = 49.45 MB
Consolidated free space that is available for XP Performance Advisor (MB/day) = 99.64 MB (50.19
MB + 49.45 MB)
HP StorageWorks XP Performance Advisor Software User Guide 171