VERITAS NetBackup 5330 Appliance Hardware Installation Manual page 14

14 Hardware overview
NetBackup 5330 storage shelves and disk drives
The disk slots in each drawer are numbered from 1 to 12 starting at the left side of
the drawer.
Three LEDs on the front of each drawer provide information about each column of
three slots.
See "Installing disk drives into a Primary Shelf or an Expansion Shelf " on page 41.