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v Either path<br />
You can specify these settings with the REGISTER NODE and UPDATE NODE<br />
commands.<br />
Be aware that if the node belongs to a multi-threaded client and there are<br />
drives available, the MAXNUMMP parameter may restrict the number of<br />
drives that are available for the storage agent to use on behalf of the client. The<br />
MAXNUMMP parameter is specified on the REGISTER NODE or UPDATE<br />
NODE command.<br />
Step 3. Configuring Devices for the Storage Agent to Access<br />
This section provides information to help you define paths from the storage agent<br />
to the drives that are available to the Tivoli Storage Manager server. Paths allow a<br />
client, by means of a storage agent, access to drives in a library. The requirements<br />
are different depending on the device you are using.<br />
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Consider the following guidelines before you begin defining paths to your SAN<br />
drives:<br />
v You must have the names of your tape and drive devices. See “Obtain Device<br />
Information” on page 15 for details on how to obtain this information if you<br />
have not already done so.<br />
v Paths from the storage agent to each drive that the storage agent will be allowed<br />
to access must be defined on the library manager. There must be a path defined<br />
from the library manager to each drive in order for the storage agent to use the<br />
drive.<br />
v Review tape device names. For the same tape device, the device name as known<br />
to the server will probably not match the device name as known to the storage<br />
agent.<br />
Figure 8 shows the results of completing this step.<br />
Tivoli Storage Manager Client Workstation<br />
Storage Agent<br />
device name: /dev/mt1<br />
SAN<br />
Tape Library Drive<br />
Tivoli Storage Manager Server - TSMSRVER<br />
define drive sanlib1 drive1<br />
define path tsmsrver drive1 srctype=server<br />
destype=drive library=sanlib1 device=/dev/mt6<br />
define path storagnt drive1 srctype=server<br />
destype=drive library=sanlib1 device=/dev/mt1<br />
Figure 8. Device information<br />
Tape<br />
Devices<br />
Define paths on the server using the device names as seen by the storage agent on<br />
each client system.<br />
Chapter 3. Installing and Configuring Tape-Library and File-Device Sharing Environments 25
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