Fujitsu ETERNUS LT260 User Manual - Page 35

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Chapter 3 Connections

3.1 Host Connection

A SAS tape drive is identified by a unique identifier called a World Wide Name (WWN) or World Wide Identifier

(WWID). The library assigns the WWID to the drive bay. When a tape drive is replaced, the WWID is re-

assigned to the new tape drive.

The operating system tracks the WWID for the tape drive on each HBA channel. Each of the drive connectors

on the fan-out cable is associated with an HBA channel. Once a tape drive has been plugged in, it should

remain on the same channel to retain the association between the HBA channel and WWID.

FUJITSU Storage ETERNUS LT260 Tape Library User's Guide -Site Planning-

P3AM-8782-06ENZ0