Hp XP Array Manager Software Manuel d'utilisateur télécharger pdf (Page 64)

• CLPR: This column indicates numbers and names of CLPRs corresponding to each parity group,

external volume group, or volume in the format CLPR-number:CLPR-name.For details on CLPRs,

see HP StorageWorks XP24000 Disk/Cache Partition User’s Guide.

Viewing Transfer Rates for Disks

Performance Monitor monitors hard disk drives and measures transfer rates (that is, the size of data

transferred i

n one second).

To view transfer rates:

1. Ensure that the Auto LUN window is displayed.

Click the LDEV tab (Figure 9 on page 35).

Thetreedisplaysalist of parity groups andexternalvolumegroups.

3. Select MB/s from the drop-down list on the right side of the window.

4. In thetree, do oneofthe following:

• To view the transfer rate for each parity group and external volume group, select the

Subsystem folder or a Box folder.

Theliston

theright displays thetransferratefor each group(Figure 31 on page 65).

Note:

If yo

uselect the Subsystem folder, the list displays all parity groups and external

volume gro

ups. To narrow thenumberofgroupsto bedisplayed in the list, select a Box

folder. F

or example, if you select the Box 1 folder, the list displays only the parity groups

whose IDs start with 1-.

• To view the transfer rate for each volume, select the parity group or external volume group

that cont

ains the volumes.

Thelistonthe rightdisplaysthe transfer rate foreachvolume inthe selected group

(Figure 31 on page 65).

The displayed statistics are the average and the maximum transfer rates for the period speciﬁed

in the Fr

om and To boxes.

Note:

If you change the date and time in the From and To boxes and then click the Apply button,

Performance Monitor recalculates usage rates and updates information in the list. To change

the date and time in From and To boxes, use the arrow buttons and the sliders (for details, see

“LDEV Tab of the Auto LUN Window” on page 34).

5. To display a graph to ﬁnd outhow thetransferratehas been changed, take thefollowing steps;

a. In the l

ist, select the parity group(s), the external volume groups, or the volume(s) that

you want.

b. Usethe drop-downlist at the right sideofthe list to select thetypeofinformation that

you want to view in the graph. For details on the information that can be displayed, see

Table 4 on page 37 in “LDEV Tab of the Auto LUN Window” on page 34.

c. Clic

kthe Draw button.

A graph appears below the list. The horizontal axis indicates the time.

Caution:

If the graph does not display changes in the transfer rate (for example, if the line

in the graph runs vertically), it is recommended that you change the value in the Chart Y

Axis Rate drop-down list. For example, if the largest value in the list is 200 and the value in

Chart Y Axis Rate is 100, you should select a value larger than 200 from Chart Y Axis Rate.

d. To view more detailed information in the graph, use the drop-down list to the right of the

list to select the type of information that you want. Next, select the Detail check box at the

low

er right of the list and then click the Draw button. The detailed graph contents change as

scribed in Table 5 on page 38 in “LDEV Tab of the Auto LUN Window”onpage34.

ution:

If more than one parity group or volume is selected in the list, you cannot select

e Detail check box to view detailed information.

Performance Monitor Operations

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Hp XP Array Manager Software Manuel d'utilisateur Page 64

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