41
Chapter 3: Maintenance and Component Installation
3.4 Chassis Components
Storage Drives
The SC827BHD chassis supports twelve 3.5" storage drives (HDDs or SSDs). Each node
controls three SAS drives and three drives that can be NVMe or SAS. NVMe are 2.5" drives
The drives are mounted in carriers to simplify their removal from the chassis. These carriers
also help promote proper airflow.
For M.2 SSD storage, see the next section.
Note:
Enterprise level hard disk drives are recommended for use in Supermicro chassis and
servers. For information on recommended HDDs, see the Supermicro website.
Note
: For VROC configurations, refer to the VROC appendix in this manual
Drive Carrier Indicators
Each drive carrier has two LED indicators: an activity indicator and a status indicator. In
RAID configurations, the status indicator lights to indicate the status of the drive. In non-RAID
configurations, the status indicator 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/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
On for five seconds,
then off
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