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– The Attribute column indicates the priority of each WWN. Prio.
indicates a prioritized WWN. Non-Prio. indicates a non-prioritized
WWN. For details on how to change the priority, see Setting Priority for
Host Bus Adapters.
If one host bus adapter connects to multiple ports, the attribute setting
of the host bus adapter is common to all the ports. Therefore, if you
specify a host bus adapter as a prioritized WWN or a non-prioritized
WWN for one port, the setting is applied to all the other connected ports
automatically.
– The Upper columns let you specify the upper limit on the I/O rate and
the transfer rate for each host bus adapter. Either of the IOPS or MB/s
column in the list is activated depending on the selection from the list
above.
The IOPS column lets you specify the upper limit for I/O rates. The
MB/s column lets you specify the upper limit for transfer rates. To
specify an upper limit, double-click a cell to display the cursor in the
cell.
If you specify a value in either of the IOPS or MB/s column, the other
column is deactivated. You can specify upper limit values for I/O rates
and transfer rates all together for different non-prioritized WWNs.
Notes:
If one host bus adapter connects to multiple ports, the setting of the upper
limit value for a non-prioritized WWN is common to all the ports.
Therefore, if you specify a upper limit value of non-prioritized WWN for
one port, the setting is applied to all the other connected ports
automatically.
You cannot change the upper limit value of a host bus adapter that has
registered on an SPM group. The upper limit value of such a host bus
adapter is defined by the setting of the SPM group to which the host
bus adapter is registered. For details on setting the upper limit value of
an SPM group, see Setting an Upper-Limit Value to HBAs in an SPM
Group.
The Upper columns will not display if an SPM group (
adapter (
•
If you select the All Thresholds check box and enter a threshold value in
the text box, the threshold value will be applied to the entire storage
system. If you want to specify the threshold for the I/O rate, select IOPS
from the list on the right of the text box. If you want to specify the
threshold for the transfer rate, select MB/s from the list. For example, if
you specify 128 IOPS in All Thresholds, the upper limits on non-
prioritized WWNs are disabled when the sum of I/O rates for all the
prioritized WWNs is below 128 IOPS.
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Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User's Guide
)is selected in the lower-left tree.
Using the Performance Manager GUI
) or a host bus
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