Starting with Firmware version v4.2.x and above, there is a 'restart' option in the GUI (select member member name service tag, towards the bottom is a restart link). You can also telnet the actual member (using a IP address from one of it's physical interfaces) login as grpadmin, and type restart. This will cause a restart of the member, and the control module will failover.
Be reminded that this will momentarily, restart the array member (takes about 15-20 seconds), and any servers connected to the Group will need to be properly setup to 'ride out' the iSCSI time out first (see the firmware release notes for your servers's suggested iSCSI timeout values) and then order a new battery.
Eqaullogic PS4100 controller battery failed Discussion in 'SSDs & Data Storage' started by Riccochet, Aug 10, 2015. Aug 10, 2015 #1. Riccochet Off Topic Award. Messages: 21,449 Joined: Apr 11, 2007. Have a PS4100 where one of the controllers is showing a battery failure. This is causing it go in to write through mode and decreasing performance.