E2600 Controller-Drive Tray Installation Guide 29
Step 3 - Installing the Host Bus Adapters for the E2600
Controller-Drive Tray
Key Terms
HBA host port
The physical and electrical interface on the host bus adapter (HBA) that provides for the connection between the
host and the controller. Most HBAs will have either one or two host ports. The HBA has a unique World Wide
Identifier (WWID) and each HBA host port has a unique WWID.
HBA host port world wide name
A 16-character unique name that is provided for each port on the host bus adapter (HBA).
host bus adapter (HBA)
A physical board that resides in the host. The HBA provides for data transfer between the host and the controllers in
the storage array over the I/O host interface. Each HBA contains one or more physical ports.
Things to Know – Host Bus Adapters and Ethernet Network Interface Cards
The E2600 controller-drive tray supports dual 6-Gb/s SAS host connections and optional host interface cards
(HICs) for dual 6-Gb/s SAS, four 1-Gb/s iSCSI, two 10-Gb iSCSI, and four 8-Gb/s FC connections. The
connections on a host must match the type (SAS HBAs for SAS, FC HBAs for FC, or iSCSI HBAs or Ethernet
network interface cards [NICs] for iSCSI) of the HICs to which you connect them. For the best performance,
HBAs for SAS and FC connections should support the highest data rate supported by the HICs to which they
connect.
For maximum hardware redundancy, you must install a minimum of two HBAs (for either SAS or FC host
connections) or two NICs or iSCSI HBAs (for iSCSI host connections) in each host. Using both ports of a
dual-port HBA or a dual-port NIC provides two paths to the storage array but does not ensure redundancy if an
HBA or a NIC fails.
NOTE Consult your Technical Support representative to obtain information about the supported models of the
HBAs and their requirements to make sure you have an acceptable configuration.
Most of the HBAs, as shipped from the vendor, require updated firmware and software drivers to work
correctly with the storage array. For information about the updates, refer to the website of the storage vendor to
obtain certified versions.
Procedure – Installing Host Bus Adapters
1. Check with your Technical Support representative to make sure you have an acceptable configuration. Before
installing an HBA, you must have the following information:
— The latest hardware compatibility information
— The models of the HBAs that are supported
— The firmware requirements and the software requirements for the HBAs
2. Install your HBA according to the vendor documentation.
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