Hitachi MK-96RD617-08 - Manual (Page 99)

Performance Monitor Operations 5-17
Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User’s Guide
Note: The range of monitoring and the gathering interval affects the time
period represented by a graduation on the horizontal axis.
Figure 5-6 Example of External Volume Usage Rates Displayed
Note: If the CU is not the monitoring target, all items in the row are
displayed in italics. If you want to monitor those items, specify the CU as
the monitoring target by using the Monitoring Option window.
The list displays the following items:
• : When the green checkmark icon is displayed on the left of a external
volume, the graph illustrates changes in usage rate for the external
volume.
• ExLDEV: This column indicates external volumes, in this format:
LDKC:CU:LDEV. A number ending in # indicates the volume is an external
volume.
• Emulation: This column indicates device emulation types.
• Response Time: This column indicates the time for replying from an
external volume when I/O accesses are made from USP V/VM storage
system to the external volume. The unit is milliseconds. The average
response time in the period specified at Monitoring Term is displayed.
• Trans.: This column indicates the sizes of data transferred between the
storage system and the external volume in one second.
• CLPR: This column indicates numbers and names of CLPRs corresponding
to each external volume group which the external volume belongs to, in
the format "CLPR-number
:
CLPR-name". For details on CLPRs, see the
Virtual Partition Manager User's Guide.