Hp XP Array Manager Software Manuel d'utilisateur télécharger pdf (Page 13)

1 Overview of HP StorageWorks

XP Performance Monitor

Performance Monitor lets you obtain usage statistics about physical hard disk drive, volumes, processors

or other resources in your storage system. Performance Monitor also lets you obtain statistics about

workloads on disk drives and trafﬁc between hosts and the storage system. The Auto LUN window

displays a line graph that indicates changes in the usage rates, workloads, or trafﬁc. You can view

information in the window and analyze trends in disk I/Os and detect peak I/O time. If system

performance is poor, you can use information in the window to detect bottlenecks in the system. For

an overview, see “Overview of Performance Monitor”onpage15.

Restriction

: The Performance Control and WWN tab functions are not supported in this version.

Note

: When using Performance Monitor, you must specify the volumes to be monitored in CUs. Therefore,

depending on your disk subsystem conﬁguration, the list may display performance statistics for some

volumes and not display performance statistics for other volumes, if the range of used CUs does not match

the range of CUs monitored by Performance Monitor.

To correctly display performance statistics of a parity group and a LUSE volume, you must specify as

follows:

• Specify all volumes that belong to the parity group as the monitoring targets.

• Specify all volumes that make up the LUSE volume as the monitoring targets.

Figure 1 on page 14 illustrates and simpliﬁes the performance management process.

XP24000 Performance Monitor User's Guide

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Hp XP Array Manager Software Manuel d'utilisateur Page 13