Model : IW-RS216-07 Slim Hybrid Backplane User Manual
PAGE 9 OF 12
LED Behavior
Disk Bay LED
Blue LED:
Disk Insertion Indicator
–
Turned on whenever disk drive is properly installed.
Activity indicator
–
Stay off when idle and blinking (~8 Hz) whenever disk drive is being accessed.
RED LED:
Fail and Locate indicator
–
Turned steady on when disk failure occurs. Blinking (1 Hz) when locating Disk, RAID rebuild
and RAID consistent check.
There are 2 parts of LED Management on the backplane. One is for SAS and another is for
NVMe. Please note that the disk slots can only accommodate SAS/SATA or NVMe disk at a
time since they share the same disk connector.
For SAS application, The LEDs behave by following SGPIO signal coming through
sideband bus inside the SFF-8643 to SFF-8621 cables. The SGPIO Jumper setting is
enabled the LEDs behave according to the SGPIO signals.
For NVMe application, The LEDs behave according to the VPP over I2C signals from NVMe
