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Hard drive trays (1): Each drive tray is hot-swappable and holds a 2.5 /
3.5-inch hard drive. 4U60 systems have 3 drawers, holding 20 hard
drives in each drawer
LED Panel (2): The panel has Service / Power / Cooling Fan / Thermal /
System LEDs.
Mute button / service LED (3): The mute button is to mute an alarm
when sound or to indicate to the administrator the system requires
service.
Rotary ID switch in JBOD systems (4): The rotary ID switch is for
users to set a unique ID to each JBOD when connected in a multi-array
environment.
Handles (5): There are handles on both sides of the enclosure for users
to pull / push the enclosure out and into the cabinet when the enclosure
is installed on a slide rail rackmount system.
Rackmount holes (6): There are two rackmount holes (one on each
side of the enclosure) for users to secure the enclosure onto the
cabinet.
Hard drive status LED (7): There is a set of hard drive status LEDs
right hand side or below of the hard drive tray to indicate operation
status.