Step, Configuring, Devices – IBM TIVOLI SC32-0129-00 User Manual

Page 44: Storage, Agent, Access

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the

node

with

the

REGISTER

NODE

command.

For

more

information,

see

the

REGISTER

NODE

and

UPDATE

NODE

commands

in

the

Administrator’s

Reference.

To

help

you

tune

the

use

of

your

LAN

and

SAN

resources

for

LAN-free

data

movement,

you

can

control

the

path

that

data

transfers

take

for

clients

that

have

LAN-free

data

movement

capability.

For

each

client,

you

can

select

whether

data

read

and

write

operations

use:

v

The

LAN

path

only

v

The

LAN-free

path

only

v

Either

path

You

can

specify

these

settings

with

the

REGISTER

NODE

and

UPDATE

NODE

commands.

Be

aware

that

if

the

node

belongs

to

a

multi-threaded

client

and

there

are

drives

available,

the

MAXNUMMP

parameter

may

restrict

the

number

of

drives

that

are

available

for

the

storage

agent

to

use

on

behalf

of

the

client.

The

MAXNUMMP

parameter

is

specified

on

the

REGISTER

NODE

or

UPDATE

NODE

command.

Step

3.

Configuring

Devices

for

the

Storage

Agent

to

Access

This

section

provides

information

to

help

you

define

paths

from

the

storage

agent

to

the

drives

that

are

available

to

the

Tivoli

Storage

Manager

server.

Paths

allow

a

client,

by

means

of

a

storage

agent,

access

to

drives

in

a

library.

The

requirements

are

different

depending

on

the

device

you

are

using.

Consider

the

following

guidelines

before

you

begin

defining

paths

to

your

SAN

drives:

v

You

must

have

the

names

of

your

tape

and

drive

devices.

See

“Obtain

Device

Information”

on

page

15

for

details

on

how

to

obtain

this

information

if

you

have

not

already

done

so.

v

Paths

from

the

storage

agent

to

each

drive

that

the

storage

agent

will

be

allowed

to

access

must

be

defined

on

the

library

manager.

There

must

be

a

path

defined

from

the

library

manager

to

each

drive

in

order

for

the

storage

agent

to

use

the

drive.

v

Review

tape

device

names.

For

the

same

tape

device,

the

device

name

as

known

to

the

server

will

probably

not

match

the

device

name

as

known

to

the

storage

agent.

Figure

8

on

page

27

shows

the

results

of

completing

this

step.

26

IBM

Tivoli

Storage

Manager

for

SAN

for

AIX:

Storage

Agent

User’s

Guide

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