The IBM FlashSystem 5200 expansion enclosures provide scalable SAS-based capacity for the 4662-6H2 control enclosure, supporting a mix of high-performance SAS flash SSDs, enterprise HDDs (10K RPM), and high-capacity nearline HDDs (7.2K RPM). Available in SFF (Small Form Factor), LFF (Large Form Factor), and high-density configurations, these 2U or 5U rack-mounted units connect via 12 Gbps SAS for reliable tiered storage. They enable DRAID formatting for enhanced data protection, faster rebuilds, and efficient scaling to petabyte levels with hybrid flash-disk setups. Expansion requires a dual-port 12 Gbps SAS adapter (one per node canister, in slot 2 only) in the control enclosure.
Models available (all SAS-based expansion enclosures):
| Model | Description | Form Factor | Drive Bays | Max Drives per Enclosure | Max Total Drives (approx.) | Example Use |
|---|---|---|---|---|---|---|
| 4662-12G | FlashSystem 2U12 SAS Expansion Enclosure | 2U LFF | 12 x 3.5-inch | 12 | Up to 72 (6 enclosures) | High-capacity nearline storage |
| 4662-24G | FlashSystem 2U24 SAS Expansion Enclosure | 2U SFF | 24 x 2.5-inch | 24 | Up to 144 (6 enclosures) | Balanced performance/capacity tiers |
| 4662-92G | FlashSystem 5U92 SAS Expansion Enclosure | 5U HD | 92 x 3.5-inch (or 2.5-in carriers) | 92 | Up to 276-368 (limited) | Maximum density hybrid tiers |
Drives of the same form factor and class can be intermixed within an enclosure. Specific drive options (HDD/SSD feature codes and capacities) follow patterns similar to FlashSystem 7300 expansions, configured at order time via IBM options (e.g., nearline up to 20 TB, enterprise 10K up to 2.4 TB, SAS flash up to 30.72 TB).