Setting Priority For Wwns: Many-To-Many Connections - HPE XP7 User Manual

Procedure
Workflow for many-to-many connections:
1. Find the WWNs of the host bus adapters. For details about finding WWNs, see the 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 bus adapter" (page
3. If you want to manage multiple host bus adapters as a single group, create PFC groups.
For details, see
4. Set the priority (Prio or Non-Prio) on the host bus adapters (WWNs). For details, see
priority for WWNs: many-to-many connections" (page
5. Monitor the I/O traffic for all prioritized and non-prioritized host bus 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
connections" (page
7. Set upper limits for traffic on non-prioritized WWNs to prevent these WWNs from affecting
the prioritized WWNs. For details, see
many-to-many connections" (page
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
a threshold for the entire storage system: many-to-many connections" (page

Setting priority for WWNs: many-to-many connections

If many-to-many connection is established between HBAs and ports, you need to define the
priority of WWNs, measure the traffic between the HBAs and the ports that the HBAs are
connected to, and analyze the traffic data.
The HBAs are divided into two types: prioritized WWNs and non-prioritized WWNs. Specify an
HBA on which high-priority processing is performed as a prioritized WWN. Specify an HBA on
which lower-priority processing is performed as a non-prioritized WWN.
NOTE: You cannot change the priority of a WWN that is contained in a PFC group. For details
on how to change the attribute of a WWN contained in a PFC group, see
of a PFC group" (page
Prerequisites
Required role: Storage Administrator (System Resource Management)
You must enable the Remote Web Console secondary window. For details, see the XP7
Remote Web Console User Guide.
120 Performance Control operations
"Creating a PFC group" (page
125).
126).
134).
129).
132).
120).
"Monitoring WWNs" (page
"Analyzing traffic statistics: many-to-many
"Setting upper-limit values for non-prioritized WWNs:
"Changing
"Setting
15).
"Setting
128).
"Changing the priority