HP StorageWorks P9000 Performance Advisor Software v5.3 Install Guide (T1789-96323, August 2011)

• To estimate the number of XP and the P9000 disk arrays that can be supported with one manage-
ment server and host agent:
Table 3 Large XP and P9000 disk array configurations
ComponentsData Collection Fre-
quency
# LDEVs# Arrays
Managed
Host
Agent
Management
Station
LDEVs30 mins65K411
LDEVs45 mins130K821
LDEVs60 mins148K1341
For collecting DKC and the port data, you must set the data collection frequency to 10 minutes.
• To estimate management station's disk volume space required for the P9000 Performance Advisor
database:
• HP recommends that there be at least a week's historic data available when you are forecasting
using charts or alarms.
• Determining disk space requirements:
Use the following formula to determine the disk space requirements for P9000 Performance
Advisor on a daily basis. The factors that influence the output are the number of: XP and P9000
disk arrays, LDEVs, ports, and DKC components. Also, the performance data collection and
frequency influence the output.
Free_Space (MB/day for one array) = [(SECONDS_PER_DAY / Ldev_Collec-
tion_frequency) * LDEVs * Ldev_Space ] + [(SECONDS_PER_DAY /
Port_Collection_ frequency) * PORTs * Port_Space] + [(SECONDS_PER_DAY/
Dkc_Collection_ frequency) * Dkc_Space]
where:
• Free_Space (MB/day) = Total free disk space (in MB) required for a day
• LDEVs = Total number of LDEVs in an XP or a P9000 disk array (includes journal volumes,
pool volumes, external volumes, and so on)
• PORTs = Total number of ports for an XP or a P9000 disk array
• Ldev_Collection_frequency = Collection frequency for LDEVs (in seconds)
• Port_Collection_frequency = Collection frequency for ports (in seconds)
• Dkc_Collection_ frequency = Collection frequency for DKC (in seconds)
• Ldev_Space ( per Ldev) = 0.0002 MB
• Port_Space (per port) = 0.00008 MB
• Dkc_Space (per collection) = 0.0002 MB
• SECONDS_PER_DAY = 86400
The consolidated free space that is available for P9000 Performance Advisor is the total sum
of the free space available on all the XP and the P9000 disk arrays monitored by P9000 Per-
formance Advisor.
HP StorageWorks P9000 Performance Advisor Software Installation Guide 21