HP XP Array Manager Software User Manual
Page 24
Description
Item
•
The Upper columns let you specify the upper limit on the I/O rate and transfer rate for each
HBA. Either the IOPS or MB/s column in the list is activated depending on the selection from
the list above.
Use the IOPS column to specify the upper limit for I/O rates. Use the MB/s column to 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 the IOPS or MB/s column, the other column is unavailable.
You can specify upper-limit values for I/O rates and transfer rates all together for different
non-prioritized WWNs.
NOTE:
•
If one HBA 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 an upper-limit
value of non-prioritized WWN for one port, that setting is applied to all the other
connected ports automatically.
•
You cannot change the upper-limit value of an HBA that has registered on a Perform-
ance Control group. The upper-limit value of such an HBA is defined by the setting of
the Performance Control group to which the HBA is registered. For details on setting
the upper-limit value of a Performance Control group, see “
Value to HBAs in a Performance Control Group
•
The Upper columns will not appear if a Performance Control group (
) or HBA (
)
is selected in the lower-left tree.
If you select this check box and enter a threshold value in the text box, the threshold value will
be applied to the entire storage system. To specify the threshold for the I/O rate, select IOPS
from the list to the right of the text box. 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.
Even if you use a different type of rate (IOPS or MB/s) for the threshold from that used for the
upper-limit values of the non-prioritized WWNs, the threshold control can work for all the WWNs.
In the WWN tab, you cannot specify individual thresholds for each HBA.
All
Thresholds
If selected, XP Performance Control will delete, from the SVP, the setting information for XP
Performance Control on ports in channel adapters that have been removed.
If selected, when a channel adapter is removed, the port and its settings are removed from the
Performance Control window automatically, but remain in the SVP. This may cause the old settings
for XP Performance Control to be applied to a different channel adapter that is newly installed
on the same location.
This check box is available only when the following XP Performance Control settings on ports in
a removed channel adapter remain on the SVP:
•
The settings of prioritized ports or non-prioritized ports.
•
The settings of prioritized WWNs or non-prioritized WWNs.
Delete
ports if
CHA is
removed
Performance Control Window
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