Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Información técnica Pagina 45

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Chapter 2. Netfinity solutions 35
2.3.3 IBM SAN Fibre Channel Switch
The IBM SAN Fibre Channel Switch is an eight-port or 16-port Fibre Channel
device used to interconnect multiple host servers with storage servers and
devices, creating a storage area network (SAN). The switch lets you build a wide
range of scalable SAN solutions with high-speed, full-fabric support, and modular
components. By creating an intelligent connectivity infrastructure, or fabric, that
supports connections across a wide range of host and storage types, the IBM
SAN Fibre Channel Switch enables storage resources to be shared.
Figure 19. Eight-port Fibre Channel Switch
The IBM Fibre Channel Switch is available in two versions:
2109 Model 08
The model 08 can hold up to eight fiber optic connections. These connections
are established by using Gigabyte interface converters, or GBICs (see 2.3.2.1,
Netfinity Fibre Channel Hub GBICs on page 34). Both short wavelength
(SWL) and long wavelength (LWL) fiber optic GBIC versions are supported.
There are four SWL GBIC modules installed by default.
2109 Model 16
The model 16 is an enterprise version of the model 08. It holds up to 16
GBICs, four of them installed by default (SWL versions).
Both models can be equipped with a redundant power supply.
Intelligence is built into the switch architecture: self-learning allows the fabric to
automatically discover and register host and storage devices, and self-healing
enables the fabric to isolate a problem port and reroute traffic onto alternate
paths. In addition, internal to the switch is a processor that provides fabric
services such as name serving, zoning, routing, and dynamic microcode
upgrades.
The IBM SAN Fibre Channel Switch comes with the StorWatch SAN Fibre
Channel Switch Specialist, which can be used to manage the switch. To do this,
the switch needs to be connected to a network, using the integrated Ethernet
adapter. You can then assign an IP address to the switch, and manage it through
a Web browser.
Ethernet Port
Serial Port
Power Supply #1
Port 7Port 0
Power Supply #2
A fabric is a term used to define a scheme of interconnected Fibre Channel
servers and nodes.
Note
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