39
Chapter 3: Maintenance and Component Installation
3.4 Chassis Components
Hard Drives
The SC946L JBOD chassis supports forty five 3.5" hard drives. They can be removed without
powering down the system if your operating system supports RAID. In addition, it supports
two 2.5" drives accessible at the rear of the chassis.
Hard Drive Carrier Indicators
Each hard drive carrier has two LED indicators: an activity indicator and a status indicator.
The status indicator functions in RAID configurations. For non-RAID configurations, it remains
off. See the table below for details.
Hard Drive Carrier LED Indicators
Color
Blinking Pattern
Behavior for Device
Activity
LED
Blue
Solid On
SAS drive installed
Blue
Blinking
I/O activity
Status
LED
Red
Solid On
Failure of drive with RSTe support
Red
Blinking at 1 Hz
Rebuild drive with RSTe support
Red
Blinking with two blinks
and one stop at 1 Hz
Hot spare for drive with RSTe support
Red
On for five seconds,
then off
Power on for drive with RSTe support
Red
Blinking at 4 Hz
Identify drive with RSTe support
Note:
Enterprise level hard disk drives are recommended for use in Supermicro chassis and
servers. For information on recommended HDDs, visit the Supermicro website and check the
"Drive Options" in the product webpage.