54
Chapter 3: Maintenance and Component Installation
3.8 Storage Drives
The SSG-640SP-DE2CR60 supports 60 3.5"/2.5" SAS3 hard drives. The drives can be
removed without powering down the system if your operating system supports RAID. In
addition, each node supports two M.2 NVMe drives, two internal 2.5" SATA drives, and optional
two 7-mm or one 15-mm internal NVMe drives.
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 at 3Hz
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 3-5. Hard Drive Carrier Indicators
