HP XP Performance Advisor Software - Manual (Page 70)

RUNJAVA="/opt/sanmgr/jre/bin/java -DHAGT=1
-Djava.net.preferlPv4Stack=true"
to
RUNJAVA="/opt/sanmgr/jre/bin/java -DHAGT=1
-Djava.net.preferlPv4Stack=true -Xms100M -Xmx256M"
For the host agent on Windows hosts
To increase the maximum number of LDEVs for the host agent on a Windows host, complete the following
steps:
1. Open the file: \Program Files\Hewlett-Packard\san-
mgr\hostagent\ config\hostagentService.cfg
2. Edit the following line: JAVA_OPTIONS="Djava.security.policy=config/sec.policy
-Djava.library.path=lib-Djava.class.path=classes;classes/
jcore.jar;classes/hostagent.jar;../cssi/Logging/classes/cssilog.jar"
to
JAVA_OPTIONS="Djava.security.policy=config/sec.policy
-Djava.library.path=lib -Djava.class.path=classes;classes/
jcore.jar;classes/hostagent.jar;../cssi/Logging/classes/cssilog.jar
-Xms100M -Xmx256M"
Determining disk space requirements
Use the following formulae to determine the disk space requirements for PA XP, based on the number of
arrays, total LDEVs, collection period, and quantity of performance data:
Free Space = Total required free disk space in MB
History Length = The length of the performance data history in days
Luns = The total number of LUNs of the system (include all hosts)
Collection Period = Collection period in minutes
Free Space = 1.65 + ((0.000165) * Luns * (History Length * 24) * (60/Collection))
History Length = (Free Space - 1.65)/((0.000165) * Luns * 24 * (60/Collection))
Collection Period = ((0.000165) * Luns * (History Length * 24) * 60)/(Free Space - 1.65)
Table 20 helps you determine the disk space requirement.
Table 20 Determining disk space requirements
Free Disk (MB) History Length (Days) LUNs Collection Period
(Minutes)
2014 127 4000 60
2026 365 1400 60
889 28 4000 30
2026 356 350 15
1475 31 1000 05
1998 28 300 01
Components of the Data Collection Configuration screen
Table 21 lists the components that appear on the Data Collection Configuration screen. Use these
components to configure a command device to collect data.
70 Data Collection Configuration