Table of Contents
Advertisement
Monitoring Ports
Performance Monitor monitors ports on the storage system and measures I/O
rates (that is, the number of I/Os per second) and transfer rates (that is, the
size of data transferred per second). This section describes how to view I/O
rates and transfer rates of ports on the storage system. Before taking the
following steps, you need to start monitoring in accordance with the procedure
described in Starting and Stopping Storage System Monitoring and obtain the
usage statistics.
Performance Monitor can obtain statistics about traffics of ports connected to
open-system host groups only. The statistics about traffics of ports connected
to mainframe host groups cannot be obtained.
Viewing I/O Rates for Ports
Performance Monitor monitors ports on the storage system and measures I/O
rates (that is, the number of disk I/Os per second).
To view I/O rates:
1. Ensure that the Performance Management window is displayed.
2. Select the Port-LUN tab.
The tree displays a Subsystem folder.
3. Select the Subsystem folder.
The Target folder and the Initiator/External folder are displayed.
4. Select IOPS from the list on the right side of the window.
5. In Monitoring Term, do one of the following:
– To view the I/O rate in real time, you must select the Real Time option,
specify the number of recent collections of statistics which should be
displayed in the graph, and then click Apply.
– To view I/O rates for a certain period of time in the last 24 hours, you
must select the From option, change the date and time in the From
and To boxes, and then click Apply. Use the arrow button and the
sliders when you change the date and time in the From and To boxes.
For details on the Real Time option and the From option, see Viewing Port
Workload Statistics.
6. In the tree, select the Target folder, or the Initiator/External folder.
The list on the right displays I/O rates for the ports on the storage system.
If you click the Target folder the tree displays a list of ports on the storage
system. If you click a port icon (for example,
(
) corresponding to that port appear.
Tips:
5-34
Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User's Guide
Performance Monitor Operations
and
), the host groups
Advertisement
Table of Contents
