Causes of invalid monitoring data – HP XP Array Manager Software User Manual

Page 158

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-Dhttp.proxyPort=8080 -Xmx536870912 -Dmd.command=command.txt -Dmd.logpath=log

sanproject.getmondat.RJMdMain

In the following example, a log file named export.log will be created in the log directory below
the current directory when the Export Tool executes:

Java -classpath "./lib/JSanExport.jar;./lib/JSanRmiServer.jar"
-Xmx536870912 -Dmd.command=command.txt

-Dmd.logfile=export.log -Dmd.logpath=log sanproject.getmondat.RJMdMain

The

symbol indicates the end of a command line.

Causes of Invalid Monitoring Data

If the value of monitoring data in CSV files is less than 0 (zero), consider the following causes:

Table 32 Causes of invalid monitoring data

Probable Causes

Invalid Values of Monit-
oring Data

Cause — The value "-1" indicates that Performance Monitor failed to obtain
monitoring data for some reasons.

Reasons:

Performance Monitor attempted to obtain statistics when an operation for re-
booting the disk array is in progress.

A heavy workload is imposed on the disk array.

There is no volume in a parity group.

Just after the CUs to be monitored were added, Performance Monitor failed to
save files that contain monitoring data for all volumes or journal volumes used
by remote copy software (for example, XP Continuous Access, TrueCopy for
Mainframe, XP Continuous Access Journal, or Universal Replicator for Main-
frame). For details about the files, see

Table 16

on page 108,

Table

20

on page 113, and

Table 21

on page 114.

If monitoring is stopped and longrange is specified as the gathering interval,
the monitoring data for the period is "-1".

If you added the CU during monitoring, specified longrange as the gathering
interval, and collected monitoring data. The value "-1" is displayed as the
monitoring data before the CU was added.

The monitoring data in
the CSV file includes "-1".

Cause — The value "-3" indicates that Performance Monitor failed to obtain
monitoring data.
Reason — If IOPS is 0 (zero), the Response Time of the monitoring data for: LUs,
LDEVs, ports, WWNs, or external volumes is -3. This happens because IOPS is 0
(zero) causing the average response time to become invalid.

The monitoring data in
the CSV file includes "-3".

Using the Export Tool

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