IBM E16RMLL-I Implementation Guide - Page 255
Defining a drive in a library
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With the path successfully created, the query library command now provides us with some more information. We can see the SAN World-Wide Name (WWN) and the library's serial number. 6.2.3 Defining a drive in a library Libraries with multiple drives must have each drive defined to Tivoli Storage Manager. Each drive and each cartridge location in a library has what is known as an element address. The element address is used by the device driver when it sends a media movement command, for example, "move tape in element 4096 to tape drive at element 256". Element information must be supplied when you define the drive, along with the serial number and, optionally, the WWN for SAN-attached drives. Use the define drive command to define each drive. Element information Element numbers can be discovered automatically when you specify the ELEMent=AUTODetect option. However, the element number is not detected until you run the define path command. The element address is also printed in the manual that came with the library. Windows also has a wizard that can display the element number. Serial number The serial number of the drive can also be discovered automatically by specifying the SERial=AUTODetect option. Again, the element number is not detected until you run the define path command. Windows also has a wizard that can display the drive serial number. WWN The WWN can also be supplied if you wish. Typically, however, the WWN is detected when the define path command polls the drive to obtain other information. Defining the drive Example 6-3 shows the commands to define drives named DR00 and DR01 in the library named 3582LIB that we created earlier. Example 6-3 Defining drives in an automated library tsm: ATLANTIC>define drive 3582lib dr00 serial=autod online=yes element=autod cleanfreq=asneeded ANR8404I Drive DR00 defined in library 3582LIB. tsm: ATLANTIC>define drive 3582lib dr01 serial=autod online=yes element=autod cleanfreq=asneeded Chapter 6. Data storage 225
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