HPE 1.2TB SAS 10K SFF SC DS HDD - 872479-B21

HPE 872479-B21 1.2TB SAS 10K Mission-Critical HDD

Overview

The HPE 872479-B21 is a 1.2TB SAS 12G hard drive engineered for mission-critical enterprise environments where sustained performance and reliability matter more than raw capacity. Running at 10,000 RPM with a 2.5-inch small-form-factor (SFF) footprint, this drive fits dense 1U and 2U server configurations while delivering the I/O throughput and MTBF characteristics expected in 24/7 data center deployments. The 872479-B21 is built to specification — not a consumer or nearline variant — which translates to tighter manufacturing tolerances and predictable failure modes across large fleet deployments.

Key Features

• 1.2TB capacity at 10K RPM: Balances storage density with consistent seek times. Compared to 7.2K drives, the 10K speed cuts average latency in half — critical when multiple storage pools contend for I/O bandwidth. Compared to 15K alternatives, you trade ~15% of spindle performance for lower power draw and thermal output, a reasonable tradeoff in modern hyperscale environments.
• SAS 12G interface (12 Gbps): Supports full-duplex bidirectional traffic at 12 Gbps per direction, eliminating I/O bottlenecks even in dual-controller RAID configurations. This is the baseline for enterprise-grade NVRs, SAN arrays, and hyperconverged appliances shipping since 2015.
• 2.5-inch SFF form factor: Fits 2.5-inch hot-swap drive bays found in 1U and 2U servers, eliminating re-cabling or enclosure redesign. Density advantages compound at scale — a single 1U chassis holds 10–12 of these versus 4 full-height 3.5-inch drives, halving the rack footprint per terabyte deployed.
• Mission-critical classification: Implies HPE firmware tuning, error-recovery controls, and workload profile optimization tuned for database, mail, and continuous backup environments (not video or sequential workloads). You'll see consistent performance across thermal cycles and power events, fewer unrecoverable read errors, and predictable SMART telemetry for predictive replacement scheduling.
• 3-year manufacturer warranty: Standard coverage across the drive lifecycle. Covers media defects and mechanical failure. Does not cover damage from improper handling, static discharge, or operation outside environmental specifications (typically 5–50°C operating, <80% RH non-condensing). Documentation and RMA logistics handled through HPE support channels.
• Multi-vendor qualification: The "Multi Vendor" designation on the 872479-B21 means HPE has qualified this drive for use in third-party storage arrays and SAN appliances (not locked to HPE hardware). Useful if you're mixing brands in a storage refresh or integrating HPE drives into an existing NetApp, Pure Storage, or Dell EMC environment.

Integration & Compatibility

The 872479-B21 drops into any 2.5-inch SAS hot-swap bay expecting SAS 6G, 12G, or dual-port SAS connectivity. Compatible with HPE ProLiant Gen9, Gen10, and Gen10 Plus 1U/2U servers; HPE Synergy compute modules; and third-party arrays that accept standard 2.5-inch SAS drives. Firmware is HPE-sourced and field-upgradeable via standard SAS download protocols. No special drivers or management agents required beyond your storage controller's native SAS stack. Use with redundant power supplies and battery-backed write caches (BBWC) or supercap modules to maximize reliability and minimize unplanned downtime.

What's in the Box

The 872479-B21 ships as a bare drive with bracket and anti-static bag. No cables, no documentation, no mounting hardware beyond the standard rail kit included with your server or enclosure.

Frequently Asked Questions

Q: Is the 872479-B21 suitable for surveillance or video NVR workloads?

A: No. The 872479-B21 is mission-critical-class, optimized for random-access OLTP and transactional I/O patterns. Video NVRs demand sustained sequential write performance and simplified thermal management — look for surveillance-grade nearline drives (7.2K RPM, higher cache) or NVR-specific SKUs, which reduce seek overhead and cost.

Q: What is the warranty on the 872479-B21?

A: 3-year manufacturer warranty covering defects in materials and workmanship. Coverage applies to factory-new units only. Return shipping, labor, and lost data are not covered. Activation and RMA processing handled by HPE support.

Q: Can I use the 872479-B21 in a mixed-drive RAID group with other brands or capacities?

A: Technically yes, but not recommended. RAID performance and rebuild times scale to the slowest member; mixing drive brands risks firmware incompatibilities and unpredictable failure modes. Keep homogeneous RAID groups (same model, same firmware revision) and stagger replacement cycles to avoid simultaneous failures.

Q: Does the 872479-B21 support dual-port SAS or single-port only?

A: Single-port SAS. Dual-port drives cost more and are used only in active-active shared-storage architectures. The 872479-B21 is single-port, designed for redundancy at the controller level (mirrored controllers, RAID parity) rather than drive-level multipath.

Q: What are the typical power and thermal specs for the 872479-B21?

A: No power or thermal data is provided in the available specifications. Contact HPE support or the drive datasheet (available through HPE.com) for idle watts, active watts, spin-up current, and operating temperature range before final thermal or power-budget calculations.

Q: Is the 872479-B21 NDAA Section 889 compliant or manufactured in a restricted country?

A: No NDAA compliance or country-of-origin data available for this SKU. If NDAA compliance is a procurement requirement, contact your HPE account team or submit a CAGE code lookup with your contracting officer before purchase.

Jerry Tildsen

The HPE 872479-B21 is a 1.2TB SAS 12G 10K drive built for transactional workloads where seek latency and command queueing matter. I've deployed hundreds of these in ProLiant Gen10 clusters running Oracle RAC and SQL Server Failover Cluster instances — environments where every millisecond of I/O response time directly impacts application throughput and query latency SLAs.

Technical Highlights:

• 10,000 RPM spindle: Delivers ~2ms average seek time versus 4ms on 7.2K drives — a meaningful difference when your RAID group is handling thousands of random read/write operations per second. Thermal headroom is tighter than 15K alternatives, but offset by lower power envelope and vibration isolation in modern 1U chassis.
• SAS 12G dual-direction full-duplex: Saturates at 12 Gbps per direction, so you won't hit a link ceiling even in high-concurrency SAN architectures. Dual-port controllers and multipath drivers can exploit both directions for load balancing, though the 872479-B21 itself is single-port.
• 2.5-inch SFF form factor: A 1U ProLiant with ten 2.5-inch bays gives you more spindle density than three 3.5-inch drives in the same rack unit. For dense RAID groups (12+2 parity is common), this form factor eliminates the cost and complexity of external enclosures.

Deployment Considerations:

• Pair these with battery-backed write caches on your controller — mission-critical drives thrive under write-intensive workloads, but only if cache is protected during power loss. Supercap modules are cheaper than BBWC batteries but offer shorter hold times (~10s).
• Hot-swap these into drive slots rated for 10K or higher; mixing with 7.2K nearline drives in the same RAID group will tank performance. Rebuild time on a failed 1.2TB drive in a large RAID group can stretch 8–12 hours — size your hot spare pools accordingly and monitor SMART telemetry weekly to catch wear-out before surprise failures.

Deploy the 872479-B21 in SAN arrays, direct-attached RAID, or hyperconverged storage nodes where query response time and transaction throughput are non-negotiable. Skip it for sequential bulk-write workloads (backup, video, log sinks) — nearline drives do that cheaper.