Iscsi Switch Attach Configuration - HP 2000fc Reference Manual

iSCSI Switch Attach Configuration

The high-availability configuration requires two gigabit Ethernet (GbE) switches.
During active-active operation, both controllers' mapped volumes are visible to both
data hosts.
A dual-controller MSA2012i storage system uses port 0 of each controller as one
failover pair and port 1 of each controller as a second failover pair. If one controller
fails, all mapped volumes remain visible to all hosts. Dual IP-address technology is
used in the failed-over state, and is largely transparent to the host system.The
following figure shows how port IP addresses and mapped volumes are presented
when both controllers are active.
Ethernet
switch
Figure C-6 iSCSI Storage Presentation During Normal Operation
A0 IP, B0 IP, A & B volumes
A0 IP, A volumes
A0 A1
B0 B1
B0 IP,
B volumes
A1 IP, B1 IP, A & B volumes
A1 IP, A volumes
B1 IP, B volumes
Appendix C Host Access to Storage 263