New DapuStor SSD pairs high-capacity QLC with a permanent pSLC region
- ID
- 27200
- Status
- summarized
- Published
- 22 Sep 2026, 6:30 PM
- Fetched
- 22 Sep 2026, 10:32 PM
- Provider
- Tom's Hardware
- Category
- technology
- Original URL
- https://www.tomshardware.com/pc-components/ssds/dapustor-splits-qlc-ssd-to-create-a-fast-pslc-region-in-dual-mode-drive-trades-6-percent-to-20-percent-of-its-qlc-capacity-for-more-than-7x-faster-random-writes
- Source URL
- https://www.tomshardware.com/feeds/all
Summary
- Score
- 3.5
- Created
- 22 Sep 2026, 10:37 PM
- Tags
- Audience
- developersdatabase_learners
What happened
DapuStor announced a dual-mode SSD that splits QLC storage into a permanent pSLC region, sacrificing 6% to 20% of total QLC capacity in exchange for more than 7x faster random write performance. The article text itself is almost entirely Tom's Hardware boilerplate with no additional technical detail beyond the headline.
Why it matters
For builders running their own infrastructure or evaluating cost-per-TB for write-heavy workloads (databases, logging, AI training checkpoints), a permanent pSLC partition could simplify provisioning compared to dynamic SLC caching that degrades under sustained writes. However, the article provides no pricing, availability, or benchmark data, so no concrete purchasing decision can be made yet.
Discussion angle
Whether a fixed-capacity pSLC tradeoff is more predictable than the dynamic SLC cache most consumer QLC drives already use — and whether that predictability matters for self-hosted database or ML checkpoint workloads versus just buying TLC.