Upgrade And Downgrade Considerations For The Port Grouping Policy; Device Load Balancing Policy; Enabling The Device Load Balancing Policy; Disabling The Device Load Balancing Policy - HP StoreFabric SN6500B Administrator's Manual

Upgrade and downgrade considerations for the Port Grouping policy

Downgrading to Fabric OS v6.4.0 or earlier is supported.
Note the following considerations when upgrading to Fabric OS 7.1.0:
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Device Load Balancing policy

When the Device Load Balancing policy is enabled, devices mapped to a port group always log in to
the least-loaded N_Port in that port group. This helps to distribute the login load on each of the
N_Ports. This policy is intended for use in conjunction with device mapping. It provides an
automatic approach to mapping devices to the least-loaded N_Port within an N_Port group. To
effectively use this policy, it is recommended that you map devices to desired N_Port groups before
enabling this policy. The Port Grouping policy must be enabled before you can enable Device Load
Balancing.
Manually created mappings from devices to N_Ports take precedence over automatically created
mappings. Refer to
mapping. For more information on device mapping, refer to

Enabling the Device Load Balancing policy

Use the following steps to enable Device Load Balancing.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the configUpload command to save the switch's current configuration.
3. The Port Grouping policy must be enabled to enable Device Load Balancing. Enter the ag
4. Enter the ag

Disabling the Device Load Balancing policy

Before disabling this policy, you should save the configuration using the configUpload command in
case you need this configuration again.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the ag
3. Enter the ag --policyshow command to determine the current status of the Device Load
Access Gateway Administrator's Guide
53-1002743-01
When upgrading to Fabric OS v7.1.0 from v6.4.0, the PG policy that was enforced in Fabric OS
v6.4.0 continues to be enforced in Fabric OS v7.1.0 and the port groups are retained. You
should save the configuration file using the configUpload command in case you might need
this configuration again.
Upgrade to Fabric OS v7.1.0 from Fabric OS prior to v6.4.0 is not supported.
"Mapping priority"
--policyshow command to determine if the Port Grouping policy is enabled. If it is not enabled,
enter ag --policyenable pg to enable this policy.
policyenable wwnloadbalance command to enable the Device Load Balancing
--
policy. Because Fibre Channel devices are identified by their WWNs, CLI commands use device
WWNs.
policydisable wwnloadbalance command to disable the Device Load Balancing
--
policy.
Balancing policy.

Device Load Balancing policy

on page 28 for details on connection priority for AG port
"Device mapping"
3
on page 21.
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