root a22711c065 Update ExaCS X11M KB with authoritative datasheet figures ...

Source: ADB-D X11M Datasheet v1.0 (Jan 2025), Table 1.

- Add HC storage variant (default): 80 TB usable disk/SS, 264 TB raw, 1.25 TB
  XRMEM + 27.2 TB flash cache per SS. Keep EF variant (52.5 TB usable/SS).
- Add x11m_elastic_base (2 DB + 3 SS): 240 TB total usable disk, 192 TB Max
  DB Size no-backup (what OCI Cost Estimator caps at), 96 TB with backup.
  Include performance metrics (5.6M read IOPS, 300 GB/s flash bw, etc.).
- Add x11m_base_system as distinct SKU: fixed-spec, non-expandable, 192
  ECPUs / 73 TB usable disk / 10 GbE — not the same as elastic 2+3.
- Replace misleading rack_configurations table (mixed X9M figures) with
  elastic per-server model; 'quarter/half/full rack' noted as legacy.
- Add pricing verified against OCI Cost Estimator 2026-04-23: DB and SS at
  \$2.9032/hr each; base config \$10,800/month excluding licenses.
- Add gotcha exacs_x11m_hc_vs_ef: default quotes to EF without
  justification; HC serves hot data from flash cache at same latency and
  far better \$/TB.
- Document the three distinct storage figures (Total Usable Disk vs Max DB
  Size no-backup vs with-backup) to avoid customer confusion.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-24 10:02:42 -03:00

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