HPP Enterprises P4000 SAN - Manual (Page 33)

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Figure 25. Adding a network switch to remove a SPOF from the infrastructure
Note the changes to the physical connections to each switch – in order to be able to survive a switch
failure in the infrastructure, each link in each bond must be connected to a separate switch.
Configuration
Consider the following when configuring your infrastructure:
 HP StorageWorks P4000 SAN bonds – You must configure the networking bonds for adaptive load
balancing (ALB); Dynamic LACP (802.3ad) cannot be supported across multiple switch fabrics.
 XenServer host bonds – SLB bonds can be supported across multiple switches.
Implementing Network RAID for SRs
HP StorageWorks P4000 SANs can enhance the availability of XenServer SRs. The resiliency
provided by clustering storage nodes, with each node featuring multiple controllers, multiple network
interfaces, and multiple disk drives, can be enhanced by implementing Network RAID to protect the