Storage Connection Manager Slow to Rebalance Connections

Under heavy I/O loads, the Storage Connection Manager GUI and the HPE Storage Connection Service require more time to rebalance iSCSI connections, possibly over 30 minutes.

Rebalancing connections involves connecting to and disconnecting from iSCSI targets. Under heavy I/O loads to the iSCSI targets, additional times required to connect to and disconnect. If the HPE Storage Connection Service is active and starts a work cycle before connection manager is able to disconnect all sessions to a target, the HPE Storage Connection Service may, in rare cases, attempt to re-establish the disconnected sessions to try and maintain the optimal number of connections.

If this occurs, stop the HPE Storage Connection Service while you are trying to disconnect targets on a system under load. When the desired sessions are established, restart the HPE Storage Connection Service.

A similar condition happens when you change the iSCSI connection method from Automatic to Manual under Network Configuration on the array. That action deletes the Virtual Target IP addresses and requires you to reconnect to the volumes through their Data IP addresses.

This time requirement is a normal condition.

If the Storage Connection Manager GUI cannot make connections to a volume, check the Discovery IP addresses to ensure that the array or group which owns the volume is the configured Discovery IP address on the array.