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Chapter 3: Maintenance and Component Installation
3.4 Chassis Components
Hard Drives
The CSE-947S JBOD chassis supports 60 3.5" hard drives. They can be removed without
powering down the system if your operating system supports RAID.
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
Indicates a SAS drive
Blue
Off
Indicates a SATA drive
Blue
Blinking
Drive is actively being accessed
Status
LED
Red
Solid on
Drive failed
Red
Blinking at 1Hz
RAID is rebuilding
Red
Blinking twice at 1Hz
then pausing
Indicates a hot spare
Red
Blinking at 4Hz
Locates a drive
Red
Off
Idle
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.
Drive Carrier LEDs
Figure 3-8. Hard Drive Carrier Indicators
