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Storage & Performance
SSD vs spindle, RAID levels, tiering, NVMe, all-flash economics.
- 速 When all-flash actually loses 4 min · published 2026-10-05 All-flash won the enterprise, and for most workloads it's the obvious choice. But "flash always wins" is marketing, not engineering. There remain specific, real cases where spinning disk or tape is the right answer — and knowing them is the mark of someone choosing storage rather than being sold it.
- 速 The IOPS trap in spec sheets 4 min · published 2026-08-24 That six-figure IOPS number on the datasheet is true, under conditions you will never reproduce. Understanding why the headline figure and your real throughput disagree — queue depth, block size, read/write mix, sustained vs. burst — is the difference between a storage plan that holds and one that falls over under load.
- 速 RAID is not a backup 3 min · published 2026-07-20 The oldest lesson in storage, and still the most frequently relearned at 2 a.m. RAID protects against one specific failure and nothing else. Here is exactly what it does, what it conspicuously does not, and why a healthy array is no reason to sleep soundly.
- 速 Spindle to silicon: why all-flash won the enterprise 5 min · published 2026-05-31 The economic crossover happened around 2021 and most SMB infrastructure has not caught up. A working framework for when SSD is the cheaper choice and when it is not.