SSD endurance and wear
Flash wears with writes, not with age. Knowing how fast yours is wearing turns a surprise failure into a scheduled replacement.
TBW and DWPD, briefly
Endurance is rated as total bytes written over the drive's life (TBW), or as drive writes per day over the warranty (DWPD). A read-mostly web box barely touches its budget; a busy database or a write-amplifying log store can burn through a consumer drive quickly. Matching the drive class to the write rate is the whole game.
Read the wear indicator
SMART exposes a media-wearout or percentage-used figure. Track it — disk health and monitoring show how — and you will see a drive approaching end of life months ahead, not the morning it drops out of the array.
When endurance matters most
- Database write-ahead logs and busy journals.
- Caching and queue tiers that churn constantly.
- RAID rebuilds and filesystem metadata on write-heavy arrays.
For these we fit mixed-use or write-intensive drives. Tell us the workload and we spec the right endurance class rather than the cheapest sticker capacity.
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