HP XP7 Storage User Manual
Page 57
Related topics
•
“Performance Control workflow: one-to-one connections” (page 53)
•
“Performance Control window” (page 208)
•
“Port tab of the Performance Control main window” (page 209)
Implementing Performance Control: many-to-many connections
This section describes and provides instructions for implementing Performance Control for
many-to-many connections.
•
“Performance Control workflow: many-to-many connections” (page 57)
•
“Setting priority for WWNs: many-to-many connections” (page 58)
•
“Monitoring all port-HBA traffic: many-to-many connections” (page 59)
•
“Analyzing traffic statistics: many-to-many connections” (page 61)
•
“Setting upper-limit values for non-prioritized WWNs: many-to-many connections” (page 62)
•
“Setting a threshold for the entire storage system: many-to-many connections” (page 63)
Performance Control workflow: many-to-many connections
The workflow for using Performance Control depends on the connection between the host adapters
and the storage system ports. When many-to-many connections are established between HBAs
and storage system ports, the server priority cannot be defined by the port, because one port can
be connected to multiple adapters and multiple ports can be connected to one adapter. For
many-to-many connections, you can specify the priority of I/O operations and the upper limit value
for each host adapter, and you can specify one threshold value for the entire storage system.
The WWN tab of the Performance Control main window is used to manage Performance Control
operations for many-to-many connections.
Workflow for many-to-many connections:
1.
Find the WWNs of the host adapters. For details about finding WWNs, see the HP XP7
Provisioning for Open Systems User Guide.
2.
If desired, assign names to the WWNs for ease of identification. For details, see
the PFC name of a host adapter” (page 64)
.
3.
If you want to manage multiple host adapters as a single group, create PFC groups. For details,
see
“Creating a PFC group” (page 67)
4.
Set the priority (Prio or Non-Prio) on the host adapters (WWNs). For details, see
priority for WWNs: many-to-many connections” (page 58)
5.
Monitor the I/O traffic for all prioritized and non-prioritized host adapters to collect data and
statistics for analysis. For details, see
6.
Analyze the traffic statistics that you have collected to determine the appropriate upper limits
to set for the non-prioritized WWNs. For details, see
“Analyzing traffic statistics: many-to-many
.
7.
Set upper limits for traffic on non-prioritized WWNs to prevent these WWNs from affecting
the prioritized WWNs. For details, see
“Setting upper-limit values for non-prioritized WWNs:
many-to-many connections” (page 62)
8.
Monitor traffic at the ports again to check the results of applying the upper-limit values to the
non-prioritized WWNs, and adjust the upper-limit values as needed.
9.
If desired, apply a threshold to the entire storage system to allow higher performance for the
non-prioritized WWNs when activity on the storage system is low. For details, see
threshold for the entire storage system: many-to-many connections” (page 63)
.
Implementing Performance Control: many-to-many connections
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