EX4100 drive 1 going bad when RAW file are copy

I use my ex4100 with 4 6 Tera drive, when i copy huge amount of RAW Picture from my Mac Studio(wireless 5G) ramdom, my drive 1 get RED light, in the smart the drive is tag BAD, but if i reboot everything is OK, no error elsewere,

1 year ago i had a EX2 ultra that was doing samething, WD exchange the drive, but still same issue, but if i copy JPEG or other file, no problem.

How can i look into the /ETC/LOG and get or troubleshoot the issue, for me it look more a bug in the files system.

i test all my picture and they are good

Hi @grenona55,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:

Yes i have one case open