When setting up your EqualLogic storage systems to work in an ESXi implementation, you must address certain specific issues.
Follow these requirements:
You do not need any special multipathing setup. EqualLogic storage systems support storage-processor failover that is transparent to iSCSI. Multiple iSCSI HBAs or NICs can connect to the same target or LUN on the storage side. EqualLogic provides a multipathing extension module that can be installed on ESXi to provide additional capabilities.
For information about the custom multipathing configuration packages, contact Dell EqualLogic.
Enable ARP redirection for ESXi hardware iSCSI HBAs. See Configuring Advanced Parameters for iSCSI.
EqualLogic storage systems impose a maximum limit of 1024 iSCSI connections per storage pool and 2048 connections per storage group.
Extend the iSCSI login timeout on the ESXi host to 15 - 30 seconds. See Configuring Advanced Parameters for iSCSI.
For more information about configuring and using EqualLogic storage systems, see the vendor’s documentation and the VMware knowledge base article at http://kb.vmware.com/kb/2007829.