EqualLogic Multipathing Extension Module (MEM)

For those of you using Equallogic Arrays and VMware Software iSCSI, I highly recommend the EqualLogic Multipathing Extension Module (MEM). 

The standard method of configuring SW iSCSI with 2 or more adapters is time consuming and tedious at best.  (create vSwitch, create vmkernels for each adapter, Override vSwitch Failover order, console in to set MTU to 9000, bind vmk's to the iSCSI initiator ect...)

The EqualLogic Multipathing Extension Module comes with a setup script which performs the configuration of SW iSCSI, in addition to installing the MEM. 

The SW iSCSI configuration is a breeze using the setup.pl script.  I ran it using vSphere CLI 4.1 from a local Windows host.   Run the script, enter in the host specific info (vmnics used, IP's, netmask, sw iscsi, etc..)  and the script does the rest.  It even enables sw iSCSI and enters the EqualLogic Group IP for you.

After the configuration, run the same setup script with "--install" to install the Equallogic Multipathing Extension Module.  After the successful install, and a reboot, I saw a noticable reduction in latency to the storage.