Chassis Components; Hard Drives; Hard Drive Carrier Indicators - Supermicro CSE-947S JBOD User Manual

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.
Color
Activity
Blue
LED
Blue
Blue
Status
Red
LED
Red
Red
Red
Red
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.
Chapter 3: Maintenance and Component Installation
Hard Drive Carrier LED Indicators
Blinking Pattern Behavior for Device
Solid on Indicates a SAS drive
Off Indicates a SATA drive
Blinking Drive is actively being accessed
Solid on Drive failed
Blinking at 1Hz RAID is rebuilding
Blinking twice at 1Hz Indicates a hot spare
then pausing
Blinking at 4Hz Locates a drive
Off Idle
Drive Carrier LEDs
Figure 3-8. Hard Drive Carrier Indicators
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