Supermicro A+ Server 2123BT-HTR - 3.4 Chassis Components

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Chapter 3: Maintenance and Component Installation
3.4 Chassis Components
Storage Drives
The SC217BHQ+ chassis supports twenty-four 2.5" storage drives (HDDs or SSDs) in carriers
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For M.2 SSD storage, see the next section.
Drive Carrier Indicators
Each drive carrier has two LED indicators: an activity indicator and a status indicator. In
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Hard Drive Carrier LED Indicators
Color Blinking Pattern Behavior for Device
Activity
LED
Blue Solid On SAS/NVMe 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 
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Power on for drive with RSTe support
Red Blinking at 4 Hz Identify drive with RSTe support
Green Solid On Safe to remove NVMe device
Amber Blinking at 1 Hz Attention state—do not remove NVMe device
Note: Enterprise level hard disk drives are recommended for use in Supermicro chassis and
servers. For information on recommended HDDs, see the Supermicro website.