For IBM Power 8

IBM Power8 HDD & SSD Drives – SAS Storage for AIX & IBM i

IBM Power8 systems (POWER8 processor era) support a wide range of high-reliability SAS disk drives in SFF-3 (2.5-inch) hot-swap carriers for internal bays and SFF-2/SFF-3 in EXP24S/EXP24SX expansion drawers. These drives are fully qualified for AIX and IBM i workloads on models including S814 (8286-41A), S822 (8284-22A), S824 (8286-42A), E870/E880 (9119-MME/MHE), and related servers. SAS HDDs provide cost-effective capacity for transactional, journaling, and archival data, while enterprise-grade SAS SSDs deliver dramatically higher IOPS, lower latency, and better endurance for virtualization, ERP, databases, and high-concurrency applications. All drives feature hot-swap capability, RAID/mirroring support via integrated controllers or VIOS, and native compatibility with AIX 7.1+ and IBM i 7.1+ (with appropriate PTFs for newer SSDs).

Features

Hot-swap SFF-3 (2.5-inch) carriers standard on internal Power8 bays (8–18 slots typical)
SAS 12 Gb/s interface (backward compatible with 6 Gb/s SAS controllers)
RAID 0/1/5/6/10 and IBM i mirroring support (native or VIOS-hosted)
Power-loss protection capacitors and firmware optimized for AIX/IBM i
Mixed HDD + SSD configurations in the same backplane/drawer for tiered storage
EXP24S (#5887) and EXP24SX drawers for additional capacity and flexibility
Sector formats: 512e / 4Kn / 520-byte / 4160-byte options (IBM i native attachment)
Enterprise endurance ratings on SSDs (1–10 DWPD classes)

Drive Types

SAS HDDs (10K & 15K RPM)

Traditional spinning media for high sequential throughput and $/GB value
Capacities: 139 GB – 1.8 TB (typical #ESxx / #59xx / #ESDU-ESFA series)
Performance: 10K or 15K RPM, strong for sequential reads/writes, journaling
Ideal for: Traditional AIX/IBM i applications, file systems, less latency-sensitive data

SAS SSDs (Enterprise & Mainstream Classes)

Flash-based drives for high random IOPS and sub-millisecond latency
Capacities: 177 GB – 3.84 TB+ (typical #ES84 / #ES8K / #ESBF / #ESMR / #ESNY series)
Performance: 100K–500K+ IOPS, 1–10 DWPD endurance ratings
Ideal for: Virtualization, SAP/Oracle/DB2, high-concurrency IBM i partitions, AIX analytics

Technical Specifications

Drive Type | Interface | Capacities (Typical) | RPM / Endurance | Performance Highlights | AIX / IBM i Support | Form Factor
SAS HDD | SAS 12 Gb/s | 139 GB – 1.8 TB | 10K / 15K RPM | High sequential, good $/GB | AIX 7.1+, IBM i 7.1+ | SFF-3 (2.5") / SFF-2 in drawers
SAS SSD | SAS 12 Gb/s | 177 GB – 3.84 TB+ | N/A (flash) | High random IOPS, low latency | AIX 7.1+, IBM i 7.1+ (PTFs for newer) | SFF-3 (2.5") / SFF-2 in drawers

Compatibility

Fully compatible with IBM Power8 systems running AIX (7.1 TL3+ recommended), IBM i (7.1 TR9+ recommended), Linux, or VIOS:

Scale-out models: S814 (8286-41A), S822 (8284-22A), S824 (8286-42A)
Enterprise models: E870 / E880 (9119-MME / 9119-MHE)
Expansion: EXP24S (#5887), EXP24SX drawers (Requires appropriate storage backplanes (#EJ0P series), SAS controllers (#EJ0J/EJ0M write cache), and OS levels/PTFs for full SSD support. Consult IBM documentation for exact feature codes, backplane options, and drawer attachment rules.)