Adaptec MAN-00005-UG, Инструкция по установке и эксплуатации

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16 Spheras Storage Director Installation and User Guide
1.4.6
Using Host Bus Adapters and Drivers
A Host Bus Adapter (HBA) connects a host system to either a SCSI bus or a fibre loop. This device usually performs
the lower layers of the SCSI or Fibre Channel protocol and normally operates in the initiator role. One or more HBAs
may be integrated into a host/server computer, cluster of host computers, or SAN.
For current information on the latest HBAs and compatible drivers, see the following web site:
http://www.adaptec.com
1.4.7
Setting Up TCP/IP
The Transmission Control Protocol/Internet Protocol (TCP/IP) must be functioning properly to achieve optimal Spheras
Storage Director performance. Set up your network hardware configuration and ensure that your TCP/IP connections
are working. You can perform a test by pinging the IP addresses of the computers in your hardware configuration.
1.4.8
Using Controllers and Subsystems
Install your preferred controller hardware configuration. The following is a list of supported controllers:
discreet 2Gb hardware controllers
The Spheras Storage Director supports 2 types of controller hardware configurations.
Simplex - A disk array system having only one controller or a system capable of having dual-active controllers but only
one controller is present or active. A simplex system does not provide fault tolerance in the event of a controller failure.
The single controller handles all I/O requests.
Dual-active - A controller configuration that interconnects two identical controllers that share a common set of disk
drives. In addition to increasing overall performance, this method allows a surviving controller to take over resources of
a failed controller. This failover process is transparent to the host.
The following is a list of supported subsystems:
SANbloc 2500
See the appropriate installation guide for your subsystem for detailed configuration information.
Spheras Storage Director may be used in a direct-connect loop or a fabric environment. A switch is a device used to
connect a subsystem to an HBA. A switch is a Fibre Channel device that can be used to connect multiple ports on a
Fibre Channel arbitrated loop or Fibre Channel fabric topology. (Fabric topology uses multiple switches to route frames
between nodes in a Fibre Channel network.)
A fibre channel loop is a connection between multiple nodes that are interconnected and form a closed loop.
Information is directed around the loop until the final destination is reached. The information is routed through and
repeated by intermediate ports on the loop. These node ports are known as node loop ports (NL_Ports). All ports on the
loop share the loop. Access to the loop is obtained through an arbitration process.