Hitachi MK-96RD617-08 - Manual (Page 54)

4-12 Using the Performance Manager GUI
Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User’s Guide
For example, if the parity group icon ( ) indicates a single parity group 1-
3, the text
1-3
appears on the right of the icon. If the parity group icon
indicates two or more parity groups that are connected together, all the
connected parity groups appear on the right of the icon. For example, if the
parity group 1-3 is connected with the parity group 1-4, the text
1-3[1-4]
appears on the right of the parity group icon. (All the parity groups
connected with 1-3 are enclosed by square brackets).
Notes:
Storage Navigator does not allow you to connect two or more parity
groups. If you want to use connected parity groups, contact the
maintenance personnel.
When the ShadowImage or ShadowImage for IBM z/OS quick restore
operation is being performed, a Storage Navigator window may display
old information (status before the quick restore operation) on volume
(LDEV) configurations.
In this case, wait until the quick restore operation completes, and then
click File, Refresh on the menu bar of the Storage Navigator main
window to update the Storage Navigator window.
• The list displays statistics about disk access performance (for example, I/O
rate, transfer rate, read hit ratio, write hit ratio, and average response
time). For details on the list contents, see Monitoring Hard Disk Drives.
If you select connected parity groups in the tree, the list displays statistics
about disk access performance for all the connected parity groups.
The list displays up to a maximum of 4,096 resources at a time. If the
number of resources exceeds 4,096, use Previous and Next to display the
remaining resources.
When you select a folder icon such as Box 1 or Box 3, the concatenated
parity group icon is displayed in a list. The only parity group ID displayed
will be that of the group at the top of the concatenated parity groups. The
icon used for concatenated parity groups is the same as a regular parity
group icon. There is no specific icon for concatenated parity groups.
• The Page area displays the number of the current page and the following
items are being used to change pages of list.
– Previous button allows you to display the previous 4,096 resources.
– N/M list: The N displays the number of the current page. The M
displays total number of pages. Use the list to choose the number of the
page to display.
– Next button allows you to display the next 4,096 resources.
• The Draw button displays a line graph illustrating changes in the I/O rate,
the transfer rate, etc. The graph can display up to eight lines
simultaneously.