These slides were presented at an internal Tech Talk on September 25, 2026.

They cover database architectures that place the write-ahead log (WAL) on object storage.

• Log-centric disaggregation from ARIES through Aurora, Socrates, and Neon
• Architectures built on S3 strong consistency, S3 Express, and conditional writes
• The design space defined by commit acknowledgement placement and logging scheme
• Research and products that store WAL or logs on S3

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