Using Internet Storage Name Service (iSNS)
The 1 GbE iSCSI modules present two iSCSI targets (P6300/P6500 EVA controller 1 and controller
2), for a total of four targets to the pair of iSCSI or iSCSI/FCoE controllers. Each initiator, therefore,
discovers two or four FC targets depending on the IP Ethernet configuration. The 10 GbE iSCSI/FCoE
modules present one iSCSI target for each virtual port group (VPG) for a total of four. Each iSCSI
initiator, therefore, discovers four times the number of FC targets. HP recommends that you use
iSNS to present only the required iSCSI targets to the initiator.
Using iSCSI ports
When configuring the iSCSI module and iSCSI/FCoE module, HP recommends that you use all
eight 1 GbE or all four 10 GbE ports for higher average performance and maximum initiator
connectivity. When multiple initiators are configured, ensure that logins are spread across the
target ports on either the iSCSI modules or iSCSI/FCoE modules.
Security
When configuring a secure IP storage network based on iSCSI, the Challenge Handshake
Authentication Protocol (CHAP) is configurable on the iSCSI modules and iSCSI/FCoE modules.
CHAP is a protocol used to authenticate the peer of a connection. It is based on the peer sharing
a password or secret. Both single-direction (target) and mutual (bi-directional) CHAP are supported.
The target iSCSI modules or iSCSI/FCoE modules can have a unique password for the one-way
CHAP option. The iSCSI initiator can have a unique password for the bi-directional CHAP option
with the target iSCSI modules or the iSCSI/FCoE modules.
NOTE: IPsec is not a supported protocol with iSCSI connectivity of the target iSCSI or iSCSI/FCoE
modules.
To enable single direction CHAP for the discovered iSCSI initiator entry of the iSCSI or iSCSI/FCoE
modules:
Plan your storage configuration 13
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