Dell PowerVault NX1950 - Manual (Page 67)

Appendix 67
Best Practices for Efficient Storage Management
Storage Manager for SANs
Storage Manager for SANs is a Microsoft Management Console snap-in that
system administrators can use to create and manage the logical unit numbers
(LUNs) that are used to allocate space on storage arrays in both Fibre
Channel and iSCSI environments. Storage Manager for SANs is deployed
through a conventional snap-in and can be used on storage area network
(SAN) based storage arrays that support Virtual Disk Server (VDS) using a
hardware VDS provider. Due to hardware, protocol, transport layer and
security differences, configuration and LUN management differ for the two
types (iSCSI and Fibre Channel) of supported environments. This feature
works with any type of Host Bus Adapter (HBA) or switches on the SAN. For a
list of VDS providers that have passed the Hardware Compatibility Tests
(HCT), see the Microsoft storage website on www.microsoft.com/storage.
LUN Management for iSCSI Subsystems
For iSCSI, a LUN is assigned to a Target—a logical entity that contains one or
more LUNs. A server accesses the LUN by logging on to the Target using the
server's iSCSI Initiator. To log on to a Target, the Initiator connects to portals
on the Target; a subsystem has one or more portals, which are associated with
Targets. If a server's Initiator is logged on to a Target, and a new LUN is
assigned to the Target, the server can immediately access the LUN.
Securing data on an iSCSI SAN—To help secure data transfers between the
server and the subsystem, configure security for the login sessions between
Initiators and Targets. Using Storage Manager for SANs, you can configure
one-way or mutual Challenge Handshake Authentication Protocol (CHAP)
authentication between the Initiator and Targets, and you can also configure
Internet Protocol security (IPsec) data encryption.
NOTE: It is recommended that you use CHAP if the iSCSI traffic uses the public
network.