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– To analyze I/O rates, select IOPS from the list at the upper left corner
of the list.
– To analyze transfer rates, select MB/s from the list at the upper left
corner of the list.
The list displays traffic statistics (i.e. the average and peak I/O rates or
transfer rates) of the ports.
5. Analyze the information in the list and then determine upper limit values
that should be applied to non-prioritized ports. If necessary, determine
threshold values that should be applied to prioritized ports. For details on
the upper limit values and threshold values, see If One-to-One Connections
Link HBAs and Ports.
Setting Priority for Ports on the Storage System
If one-to-one connection is established between HBAs and ports, you need to
measure traffic between high-priority HBAs and prioritized ports. You also
need to measure traffic between low-priority HBAs and non-prioritized ports.
Prioritized ports are ports on which the processing has high priority and non-
prioritized ports are ports on which the processing has low priority. Specify a
port that connects to a high-priority host bus adapter as a prioritized port.
Specify a port that connects to a low-priority host bus adapter as a non-
prioritized port.
To set priority to ports on the storage system:
1. Start Server Priority Manager.
The Server Priority Manager window is displayed.
2. Ensure that the Port tab is displayed.
3. Select All from the list at the top right corner of the window.
4. Right-click a high-priority port and then select Non-Prio ->> Prio from
the pop-up menu. If there is more than one high-priority port, repeat this
operation.
The Attribute column displays Prio.
5. Right-click a low-priority port and then select Prio ->> Non-Prio from the
pop-up menu. If there is more than one low-priority port, repeat this
operation.
The Attribute column displays Non-Prio.
You must set upper limit values for the Non-prio. specified ports. For
detail about the setting of upper limit values, see Setting Upper-Limit
Values to Traffic at Non-prioritized Ports.
6. Click Apply.
The settings on the window are applied to the storage system.
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Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User's Guide
Server Priority Manager Operation
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