Hp XP Array Manager Software Manuel d'utilisateur télécharger pdf (Page 55)

Letter Displayed in The CellCU Monitoring StatusCU Exists

NoneCU is not being monitored

N: in blackCU will be monitored when it exists

No –: Hyphen in black boldCU is to be released from monitoring

–: Hyphen in blackCU will not be monitored when it exists

Performance Monitor has two kinds of periods (ranges) for collecting and storing statistics: short range

and long range.

The storing period of statistics in short range is determined by the settings of Gathering Interval option.

Performance Monitor saves the statistics obtained up to 1440 times in SVP. Therefore, you can estimate

the storing period of statistics with gathering interval multiplied by 1440. For example, if you specify

one minute for the gathering interval, the statistics for one day can be stored at the maximum from

the following formula:

1 minute x 1440 = 1440 minutes = 24 hours = 1 day

This storing period is the range of display in the Auto LUN windows. When you specify one minute

for the gathering interval like the example above, Performance Monitor can display the statistics for

one day (that is, 24 hours) in the list and graph at the maximum. Also, when you specify 15 minutes

for the gathering interval, Performance Monitor can display the statistics for 15 days in the list and

graph at the maximum.

However, the value of the Gathering Interval option has nothing to do with the storing period of

statistics in long range monitoring. The gathering interval in long range is fixed to 15 minutes. Therefore,

when you select the longrange storing period in the Physical tab of Performance Monitor, the display

range in the window is always three months (that is, 93 days).

The monitoring switch settings in the Monitoring Options window work in conjunction with the

monitoring switch settings in the Usage Monitor windows of XP Continuous Access, TrueCopy for

Mainframe, XP Continuous Access Journal, and Universal Replicator for Mainframe. Therefore, if you

use the Monitoring Options window to start or stop monitoring, or to change the gathering interval,

the monitoring settings of these remote copy functions will also change. Conversely, if the settings in

each Usage Monitor window are changed, the settings in the Monitoring Options window of

Performance Monitor also change automatically.

Other Windows

Apart from the Performance Monitor window and its tabs, the Performance Monitor interface also

includes the following windows:

• Continuous Access Monitor window

This window displays the information about remote copy operation of XP Continuous Access. The

contents in this window are the same as those of the Usage Monitor window of XP Continuous

Access. For details on the contents in this window, see HP StorageWorks XP24000/XP20000

Continuous Access Software User Guide.

• TC MF Monitor window

This window displays the information about remote copy operation of TrueCopy for Mainframe.

The contents in this window are the same as those of the Usage Monitor window of TrueCopy for

Mainframe. For details on the contents in this window, see Hitachi TrueCopy™ for Mainframe

User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array.

XP24000/XP20000 Performance Monitor User Guide 55

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Hp XP Array Manager Software Manuel d'utilisateur Page 55

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