Sun Microsystems StorEdge 3510 User Manual

4-12 Sun StorEdge 3000 Family Installation, Operation, and Service Manual • May 2004
4.6.1 Drive Port Connectivity in a Dual-Controller
Array
Drive channels connect to the internal drives in the array and can also connect to
drives in external expansion units. The key difference between the Sun StorEdge
3510 and 3511 FC array drive channels is the assignment of two ports for each
channel:
■ The Sun StorEdge 3510 FC array has a drive channel assigned to two ports on
each I/O controller module. Each drive channel is a pair of ports on a single I/O
controller module. In a dual controller configuration, the top controller has two
ports for drive channel 2, and the lower I/O controller module has two ports for
drive channel 3.
■ The Sun StorEdge 3511 FC array has a drive channel assigned to one port on
each I/O controller module in a dual controller configuration.
4.6.1.1 Sun StorEdge 3510 FC Arrays
Configured for redundancy, each controller in a dual-controller RAID array has two
adjacent dedicated drive channels on one loop to load-balance I/O operations (see
FIGURE 4-7). Each drive channel has two SFP ports that can be connected to
expansion units. Drive channels 2 and 3 access all the disk drives and are
interconnected to load-balance I/O operations.
FIGURE 4-7 Dedicated Drive Channels 2 on the Upper Controller and 3 on the Lower Controller in a Dual-
Controller Sun StorEdge 3510 FC Array
The I/O controller module in slot A (the upper slot) houses drive channel 2, which
connects to the 12 internal disk drives through their A ports. The I/O controller
module in slot B (the lower slot) houses drive channel 3, which connects to the 12
internal disk drives through their B ports.
Two drive ports on channel 2
Two ports on channel 3

Sun Microsystems StorEdge 3510 Specifications

General

Brand	Sun Microsystems
Model	StorEdge 3510
Category	Storage
Language	English