Connecting the enclosure to hosts 75
The 10GbE iSCSI ports are used in either of two capacities:
• To connect two storage systems through a switch for use of 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 replication feature, whereas the second option requires that
the host computer supports Ethernet, iSCSI, and optionally, multipath I/O.
TIP: See the topic about configuring CHAP in the Storage Management Guide.
TIP: Use the SMC to set iSCSI port options. Within the Storage Manager Guide, see the topic about 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.
1Gb iSCSI protocol
DS Series 1Gb iSCSI controller enclosures support two controller modules using the Internet SCSI interface
protocol for host port connection. Each DS6200/DS4200 1Gb iSCSI controller module provides four host ports,
whereas each DS2200 1Gb iSCSI controller module provides two host ports. The CNC ports are designed for use
with an RJ-45 SFP supporting data rates up to 1Gb/s, using either one-way or mutual CHAP.
TIP: See the topic about configuring CHAP in the Storage Management Guide.
TIP: Use the SMC to set iSCSI port options. Within the Storage Manager Guide, see the topic about 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 1Gb iSCSI ports are used in either of two capacities:
• To connect two storage systems through a switch for use of replication.
• For attachment to 1Gb iSCSI hosts directly, or through a switch used for the 1Gb iSCSI traffic.
The first usage option requires valid licensing for the replication feature, whereas the second option requires that
the host computer supports Ethernet, iSCSI, and optionally, multipath I/O.
HD mini-SAS
DS Series SAS models use 12Gb/s host interface protocol and qualified cable options for host connection as
described in “Cabling considerations” (page 72).
12Gb HD mini-SAS host ports
DS Series 12Gb SAS controller enclosures support two controller modules. The DS6200/DS4200 12Gb/s SAS
controller module provides four SFF-8644 HD mini-SAS host ports, whereas the DS2200 12Gb/s SAS controller
module provides two SFF-8644 HD mini-SAS host ports. These host ports support data rates up to 12Gb/s. HD
mini-SAS host ports are used for attachment to SAS hosts directly. The host computer must support SAS and
optionally, multipath I/O. Use a qualified cable option when connecting to a host.
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