Dot Hill Systems 4524 - Gb Iscsi Protocol; HD Mini-SAS Technology; 12 Gb HD Mini-SAS Ports; Connecting Direct Attach Configurations

AssuredSAN 4004 Series Setup Guide 59
TIP: See the topics about Configuring CHAP, and CHAP and replication in the Storage Management Guide.
TIP: Use the SMC or RAIDar Configuration Wizard to set iSCSI port options. Within the Storage
Management Guide, see “Configuring host ports.” Use the set host-parameters CLI command to set
iSCSI port options, and use the show ports CLI command to view information about host ports.
The 10GbE iSCSI ports are used in either of two capacities:
• To connect two storage systems through a switch for use of AssuredRemote replication.
• For attachment to 10GbE iSCSI hosts directly, or through a switch used for the 10GbE iSCSI traffic.
The first usage option requires valid licensing for the AssuredRemote replication feature, whereas the
second option requires that the host computer supports Ethernet, iSCSI, and optionally, multipath I/O.
1 Gb iSCSI protocol
AssuredSAN 4824/4834/4844/4854 controller enclosures support one or two controller modules using
the Internet SCSI interface protocol for host port connection. Each controller module provides four iSCSI
host ports configured with an RJ-45 SFP supporting data rates up to 1 Gbit/s, using either one-way or
mutual CHAP.
TIP: See the topics about Configuring CHAP, and CHAP and replication in the Storage Management Guide.
TIP: Use the SMC or RAIDar Configuration Wizard to set iSCSI port options. Within the Storage
Management Guide, see “Configuring host ports.” Use the set host-parameters CLI command to set
iSCSI port options, and use the show ports CLI command to view information about host ports.
The 1 Gb iSCSI ports are used in either of two capacities:
• To connect two storage systems through a switch for use of AssuredRemote replication.
• For attachment to 1 Gb iSCSI hosts directly, or through a switch used for the 1 Gb iSCSI traffic.
The first usage option requires valid licensing for the AssuredRemote replication feature, whereas the
second option requires that the host computer supports Ethernet, iSCSI, and optionally, multipath I/O.
HD mini-SAS technology
AssuredSAN 4524/4534/4544/4554 models use high-density mini-SAS (Serial Attached SCSI) interface
protocol for host connection.
12 Gb HD mini-SAS ports
Each controller module provides four SFF-8644 HD mini-SAS host ports supporting data rates up to 12
Gbit/s. HD mini-SAS host ports connect to hosts or switches; they are not used for replication. Use a
qualified SFF-8644 to SFF-8644 cable option when connecting to a 12 Gbit/s host. Use a qualified
SFF-8644 to SFF-8088 option when connecting to a supported 6 Gbit/s host.
Connecting direct attach configurations
AssuredSAN 4004 Series controller enclosures support up to eight direct-connect server connections, four
per controller module. Connect appropriate cables from the server’s HBAs to the controller module’s host
ports as described below, and shown in the following illustrations.
NOTE: The 4U56 enclosure does not use the 0.5 m (1.64') length supported for 2U enclosures.