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Samsung SSD goes offline once every few days - forced to rebuild RAID 1

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I have a couple of Samsung SSD 850 EVO 1TB drives in RAID 1. Every few days (and occasionally few hours) one of them "goes offline". I have to keep shutting down and rebuilding the array in AMD's RaidXpert.

I'm sure there is a specific cause to this problem. I can not easily replace this drive (they're getting replaced by 2TB NVMe drives in due time any way) though I would like to stop having this problem waste my time. Thoughts please?
 

FreedomEclipse

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Replace the drive - you let Samsung worry about if they have enough 1TB drives to replace it with.
 
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You didn't say you were on the newest FIRMWARE? Depends on production date, there were internal revisions. (? 3 different internals on the 850 EVO)

Try taking it out of RAID and updating with Samsung Magician.

EDIT: and while it is not in raid, check with CrytalDiskInfo: https://crystalmark.info/en/download/
 
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Power Supply EVGA Supernova 1300G2
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You didn't say you were on the newest FIRMWARE? Depends on production date, there were internal revisions. (? 3 different internals on the 850 EVO)

Try taking it out of RAID and updating with Samsung Magician.

EDIT: and while it is not in raid, check with CrytalDiskInfo: https://crystalmark.info/en/download/
This drive is not supported.
I presume you suggested Crystal Disk Info in regards to SMART status which AMD RaidXpert is able to report while in RAID mode which is healthy.

I am curious about DevSleep, sounds like something that might disconnect the drive from the system in specific circumstances?
 
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What is that "drive not supported?

Do you have another PC to put that drive in. (drive needs to be internal, will not update in a docking station)
Bios setting cannot be in RAID mode, needs to be in SATA or AHCI mode.

You may need to wipe drive with Magician "secure wipe" , Flash new Firmware and reload to your liking.
 
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Replace the cable to the drive first, and swap power connectors, then try different ports on the board to ensure its not anything outside the drive.
 
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