403-BCHD Dell BOSS PCIe Storage Controller

403-BCHD Dell BOSS PCIe Storage Controller

Dell BOSS (Boot Optimized Storage Solution) / IDSDM — dedicated OS boot module for Dell PowerEdge servers using mirrored M.2 SATA / NVMe.

Specifications

• Part Number: 403-BCHD
• Brand: Dell
• Module Type: BOSS-S1 (PCIe SATA mirror) / BOSS-S2 (12G SATA) / BOSS-N1 (NVMe M.2 mirror, 14G+) / IDSDM (dual SD card)
• Capacity: See PN — 240GB / 480GB / 960GB M.2 SATA or NVMe
• RAID: Mirrored (RAID-1) M.2 pair for OS-tier redundancy
• Form Factor: PCIe rear-access slot — chassis-gen-specific

Compatibility

BOSS modules are PowerEdge-generation-keyed by slot. Verify chassis-gen before order.

• BOSS-S1 (13G/14G): R430/R630/R730/R640/R740/R840 — PCIe slot mount, dual M.2 SATA mirror
• BOSS-S2 (14G/15G): R650/R750/R760 — 12G SATA
• BOSS-N1 (15G/16G+, NVMe): R660/R760 — NVMe M.2 mirror for boot
• IDSDM (legacy 13G): dual SD card mirror for embedded ESXi / hypervisor boot

Use Cases

Dedicated OS-tier boot mirror — keeps OS (ESXi / Windows / RHEL / Ubuntu) on dedicated M.2 RAID-1, separating boot from data drives. Frees data backplane slots. PERC RAID controller cache reserved entirely for data workload (DB/VM). Required for VxRail / Storage Spaces Direct / vSAN where data drives are claimed by SDS.

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