SOLVED Why does the hard disk power light flash?

[qq8554650]

from google translate

TrueNAS-SCALE-22.02.2.1
dell r720xd
H310 (IT)
12*6T 3.5 Z2
Dell 6T (dell certification)
Seagate 6T (no dell certification)

（I have 3 and none of them can read or write. same thing）
Boot for a long time
when there is no data to read or write
See the video for HDD light status

disk power led
Dell flashing alternately
Seagate keep flashing

What does the flashing of the hard disk light indicate
ths ^^

 

[morganL]

Whe multiple drives have issues, it's normally a SAS/SATA controller issue.

Can you describe the history of the system? Has it ever worked?

Dell drive status is here: https://www.dell.com/support/kbdoc/...t-is-the-meaning-of-led-on-physical-drives-pd

 

[alex992]

SAS Drives always on, SATA only activity on

 

[winnielinnie]

System Dataset?