We have have had issues with Micron 5100 randomly dropping. This was as recently as December 2019. All tested fine in in Storage Exec except one.
RMA through Micron was a HUGE Pain. Micron does not have a support phone number, only an email. When I did not get a email response in 24 hours I call the only number I could find, that was for Crucial. Crucial passed it off as a Micron drive and insisted I call them. When I pointed out there was no phone number and they were the same company I was finally able to get them to assist. They agreed to RMA the drive and set up the process. I received an email with the sales order for the new SSD saying a drive would ship out.
Only the drive never shipped. I emailed them 3 times and never received a single response to my emails over a two-week period . I finally called back only to find out that Crucial/Micron does not cross ship. I had to ship the defective drive back, and they receive it, before they would ship a replacement. I asked why I was not told this upfront and they had no answer. By the time all was done it took nearly 4 weeks for me to receive a replacement Enterprise SSD.
Of 6 SSDs in production we have had 4 drop out in the past year. This is in an S2D cluster and is caused major problems. Up till now I thought I was the only one having a problem with the Micron 5100 drives.