Setup Guide

56 Configuring Storage
• Multi-Host, Highly Available — This configuration contains XenServer
hosts, each with two NICs bonded to provide high availability for iSCSI
connectivity, and a PS Series enclosure with redundant RAID controllers.
Two of each host's NICs are connected to an Ethernet switch, and the
Ethernet switch has connections to all six ports on the RAID controllers.
See Figure 5-20 for an illustration of this configuration.
Storage repositories on a XenServer host or a XenServer pool can be
created on the iSCSI volume on the EqualLogic array.
NIC0 and NIC1 on
each XenServer host are bonded to provide high availability for the iSCSI
storage traffic. This configuration provides redundancy against host NIC
and array controller failure.
Figure 5-20. PS Series – Multi-Host, Highly Available
XenServer Host(s)
Ethernet Switch
NIC 0 NIC 1
LAN
Dell EqualLogic
PS Series Array
NIC 1 NIC 0