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NVME Drives reaching their Rated Endurance - Time to replace ?
Hi Everyone
I was checking my dedicated Ryzen 5700G server and checked the NVMe SMART data.
The server has 2x Crucial P3 1TB SSDs in RAID1. Performance generally seems fine:
- RAID1 status healthy ([UU])
- No media errors
- No NVMe controller resets or I/O errors
- NVMe temperatures around 34–35°C
- Website TTFB typically 40–70ms
- Network diagnostics look normal
However, both drives report:
critical_warning: 0x4
percentage_used: 100%
Drive 1:
- CT1000P3SSD8
- Data written: ~255 TB
- Media errors: 0
Drive 2:
- CT1000P3SSD8
- Data written: ~247 TB
- Media errors: 0
My Concerns :
How concerned would you be as a host or system admin about Crucial P3 SSDs showing 100% percentage_used in a production web hosting server?
Have you seen these drives continue operating reliably for a long time beyond the rated endurance?
If it were you, would you proactively replace them now, or simply monitor SMART and keep good backups until actual errors appear ?
In a real world scenario Could reaching 100% endurance contribute to occasional performance inconsistencies even when SMART shows no media errors and latency remains low ?
Interested in hearing real-world experiences here 
. Thank you Everyone !
Comments
https://old.reddit.com/r/DataHoarder/comments/1rdir2j/358_petabytes_written_to_a_256gb_samsung_nvme_its/
Samsung are workhorses, with Kingston I'd say very second best. But I had plenty of Crucials, SanDisks and Adatas fail on me even before their TBW was 1/10 used lol.
You should be keeping "good" backups anyway. All sorts of things can go wrong, not just disk failures, so if the data matters it should be backed up with the 3-2-1 strategy regardless.
I'm taking daily backups since long . However the warning is of concern so thought i check here with experts