Observed arrival · 2026-11-12
DiskGrade turns drive failure records into report cards
A sortable comparison of hard-drive and SSD reliability, grading models by observed annual failure rates.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Drive buyers and storage administrators comparing model reliability
- Worth noticing
- Each row shows drives in use, drive-years, and failures alongside annual failure rate, keeping the size of the evidence visible.
Field notes
The listings can be sorted by column and narrowed through capacity and manufacturer links. Each row pairs the annual rate with drives in use, drive-years, and failures, so readers can see the exposure behind a grade. The SSD section describes its entries as mostly small boot drives in Backblaze servers and warns that they are not directly comparable with hard drives.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue