Solid State Drive - Basics

  • NAND-Flash based
  • No moving parts -> silent

Contains 'erasure blocks' sized 128 - 512 KB. Comprises 4KB pages, 128 Byte of Metadata, such as error correcting code (ECC).

Always accesses data+metadata.

Read Erasure
Fast Slow
$10\mu\text{s}$ some $\text{ms}$

Writing to new page: hundreds of $\mu\text{s}$

Erasures and writes cause wear! Device will die over time!

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Matthis Kruse
Masters Student

My research interests include programming languages and compilers.

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