IBM SAN32M-2 Manuale Utente

environment for the same reasons in an

effort to help maintain access to data.

Each server is configured with redun-

dant Host Bus Adapters. Each Host

Bus Adapter is connected to a different

SAN switch, and each switch is con-

nected to a different controller in a disk

system. Every effort is made to maintain

application access to data.

The SAN32M-2 is an excellent switch

to use in a clustered server environ-

ment. Separate SAN switches enable

two separate SAN fabrics, which are

desirable as a means to help minimize

or eliminate single points of failure. The

yellow and green clusters shown above

provide redundant components at every

level and are designed to help minimize

application outages.

Many small- and medium-sized compa-

nies want to implement a business con-

tinuity or remote backup capability to

help address strict new regulatory

requirements. The SAN32M-2 fabric

switch can help provide the SAN con-

nectivity required for these environ-

ments. The diagram on the following

page is intended to represent two dif-

ferent sites. The blue side represents

the production site and the green side

represents the remote or backup site.

Many disk subsystems, including the

IBM TotalStorage DS6000 and DS4000

series, are capable of copying data to a

remote location. The data path for the

remote copy operation is represented

by the red links in the diagram.

Two SAN32M-2 fabric switches can be

connected over metro distances (up to

10 km) using longwave SFP optical

transceivers. Longer distances can be

supported with SAN routers, such as

the IBM TotalStorage SAN04M-R and

SAN16M-R, which transport Fibre

Channel Protocol (FCP) over Internet

Protocol (IP) networks without merging

the local and remote fabrics.

SAN32M-2 fabric switches can also be

used to connect two locations to

enable remote data backup. An

Information Lifecycle Management (ILM)

application such as IBM Tivoli® Storage

Manager (TSM), which runs on a server

in the production site, can write data to

a tape system at a remote location. The

same distance capabilities are available

for the business continuity solution

described above.

The SAN32M-2 includes capabilities

designed to make it easy to install and

easy to maintain for system administra-

tors who have minimal experience with

SAN components. EFCM Basic pro-

vides intuitive graphic switch manage-

ment capabilities. Installation and

backup/restore wizards are included for

novice users which are designed to

help guide them through switch setup

and operation.

EFMC Basic (formerly SANpilot) is

designed for first-time SAN users with

minimum SAN expertise. EFCM Basic

can help simplify monitoring and config-

uration management. Functions include

Web browser access, fabric and switch

configuration management, port activity

monitoring and reset, firmware updat-

ing, event logging, diagnostics and