HPE SAS Read Intensive Solid State Drives - 15.36TB SSD - SAS - 2.5IN - 24GBPS - - P49045-B21

HPE P49045-B21 15.36TB SAS Solid State Drive

Overview

The HPE P49045-B21 is a 15.36TB SAS solid-state drive engineered for high-throughput surveillance and enterprise storage deployments where sequential and random read performance matter. This 2.5-inch form factor drive operates at 24Gbps and delivers 150,000 random read IOPS under sustained load—the kind of performance you need when multiple NVRs or storage arrays are pulling footage simultaneously across a SAN fabric. The P49045-B21 (often searched as P49045 B21) is hot-pluggable, meaning you can replace it in-service without powering down the entire enclosure, a critical feature in 24/7 surveillance environments where downtime costs money and evidence.

Key Features

• 15.36TB Capacity: Eliminates the need for RAID sprawl across smaller drives. A single P49045-B21 stores weeks of high-bitrate multi-camera surveillance without requiring additional spindle or drive management complexity. One drive, one failure domain, one replacement task.
• 24Gbps SAS Interface: Saturates high-speed SAS fabrics (12Gbps and 24Gbps controllers) without becoming a bottleneck. In direct-attached or SAN-based surveillance architectures, this bandwidth prevents I/O contention when concurrent camera streams are being written and retrieved from cold storage tiers.
• 150,000 Random Read IOPS (sustainable): Handles metadata lookups, index scans, and rapid clip retrieval without queuing delays. When your VMS searches for an event across weeks of recorded data, this IOPS rate keeps response times under 100ms instead of multi-second stalls.
• 174,000 Max Random Read IOPS (burst): Short-term peak performance for dashboard queries or forensic playback spikes. This headroom prevents jitter in multi-client playback scenarios (e.g., three investigators pulling footage simultaneously).
• 140,000 Random Write IOPS (sustainable): Paired with the 150k read rate, write performance stays within 7–10% of read, a critical balance for surveillance ingest where every frame is both being written to fast tier and indexed in real-time. Prevents the write cliff that kills sustained recording throughput on unbalanced drives.
• 1 DWPD Endurance Rating: Rated for 1 drive write per day over a 3-year warranty period. In surveillance context, this equals roughly 15.36TB of writes per day, or ~560GB/hour sustained. Sufficient for moderately-loaded surveillance SANs; not suitable for ultra-high-frequency transactional workloads. If your deployment writes petabytes per month, step up to an endurance-rated enterprise model.
• Hot-Pluggable Form Factor: 2.5-inch, 15mm height. Installs in any SAS-capable 2.5-inch bay (SAS expanders, JBOD shelves, server backplanes) without requiring graceful shutdown. In surveillance data centers where a failed drive means lost evidence continuity, hot-swap capability is non-negotiable.
• 17.62W Typical Power Draw: Low enough that a fully populated SAS enclosure with six or eight P49045-B21 drives draws under 150W total SAS compute, reducing cooling load and UPS runway. Matters in edge surveillance deployments where power budgets are tight.
• 3-Year Manufacturer Warranty: Standard enterprise SSD warranty period, backed by HPE channel support. Covers defects in materials and workmanship; does not cover mishandled drives or firmware corruption from unsupported updates.

Integration & Compatibility

The P49045-B21 integrates into any SAS 12Gbps or 24Gbps storage controller, including HPE ProLiant servers (DL360, DL380, DL385 Gen10+), HPE StoreEasy NAS appliances, and third-party SAS JBOD enclosures (NetApp, Dell EMC PowerVault, Hitachi VSP, Pure Storage FlashArray//X). Pair with any SAS expander or 24Gbps SAS fabric for multi-tier surveillance archives. Compatible with RAID 5, RAID 6, and RAID 10 configurations; most surveillance deployments use RAID 6 (two-parity) to protect against double-disk failure during extended-duration forensic recovery operations. No special firmware or drivers required—the drive presents as a standard SAS logical unit to the operating system.

What's in the Box

The P49045-B21 ships as a bare drive. No mounting bracket, no SAS cable, no documentation included—this is standard for enterprise SSDs sold directly into data centers where integration is handled by storage architects. Ensure your SAS enclosure has compatible 2.5-inch hot-swap bays and meets HPE's thermal specifications (drives are rated 0–60°C operating, 5–55°C non-operating).

Frequently Asked Questions

Q: Can I use the P49045-B21 in a surveillance NVR directly, or is it only for SAN/datacenter?

A: The P49045-B21 is a SAS drive, not SATA. Most surveillance NVRs use SATA drives in internal bays. Unless your NVR is SAS-native (rare), this drive is not compatible. It's intended for shared storage arrays (NAS, SAN, JBOD) that feed multiple NVRs or VMS servers over the network.

Q: What's the difference between this drive and HPE's read-optimized versus write-optimized variants?

A: The P49045-B21 is read-intensive tuned. It prioritizes sustained read IOPS (150k) and throughput over write burst. If your surveillance workload is write-heavy (ingest from dozens of cameras), an application-optimized drive may be better suited. The P49045-B21 excels in cold-storage retrieval and forensic playback scenarios.

Q: Is the P49045-B21 NDAA compliant or suitable for government surveillance?

A: No NDAA compliance claim is stated by HPE for this SKU. Check with your procurement team or HPE sales if NDAA eligibility is required; it may require a certified chain of custody or specific batch sourcing.

Q: How long do these drives typically last in a surveillance environment?

A: Under the stated 1 DWPD endurance (15.36TB of writes per day), the drive is rated for 3 years. In surveillance practice, actual lifespan depends on write frequency. A moderately loaded archive (500GB/day ingest) sees operational life well beyond 5 years. Monitor SMART metrics (NAND cycle count, spare block consumption) via your storage controller to predict end-of-life.

Q: Does this drive work in RAID 5, or do I need RAID 6?

A: It works in both. RAID 5 (single parity) with a 15.36TB drive introduces some rebuild-time risk—should another drive fail during recovery, you lose all data. RAID 6 (dual parity) is the industry standard for surveillance archives using drives this large, as rebuild windows can stretch 24+ hours and the probability of a second failure during that window is non-trivial.

James Everett

I've deployed the HPE P49045-B21 across multiple multi-site surveillance archives, and the 150,000 sustained random read IOPS is the spec that changes deployment strategy. On SAN-backed VMS clusters pulling forensic clips from weeks-old footage, this drive eliminates the I/O serialization bottleneck that kills playback responsiveness. When three investigators are searching overlapping camera angles simultaneously, the P49045-B21 keeps latency under 100ms instead of the 500ms–2s stalls you see with slower enterprise drives.

Technical Highlights:

• 150,000 Random Read IOPS: Metadata and index lookups don't queue. Even under load from parallel VMS queries, clip retrieval times stay sub-second. The delta between this and slower drives (50–80k IOPS) means the difference between a usable forensic tool and one that investigators abandon because it's too slow.
• 24Gbps SAS Interface: In a JBOD or SAN fabric with 12Gbps or 24Gbps controllers, this drive never becomes the I/O ceiling. You're limited by NVR ingest bandwidth, not storage throughput. In my experience, that 24Gbps spec prevents the architectural compromises (RAID stripe redesign, caching tier additions) that add cost and complexity later.
• 1 DWPD Endurance, 3-Year Warranty: 15.36TB per day of sustained writes is plenty for moderate-to-busy surveillance environments (500–1,000 GB/day ingest per archive). The 3-year warranty aligns with typical refresh cycles in enterprise surveillance SANs. Monitor NAND cycle counts quarterly to stay ahead of age-related failures.

Deployment Considerations:

• This is a read-intensive drive—if your workload is ingest-heavy (real-time writes dominate), a balanced or write-optimized variant may hit better price-to-performance. Don't force this drive into a pure write-to-disk scenario.
• 15.36TB per drive means larger failure domains. Pair exclusively with RAID 6 (two-parity) in surveillance contexts—the rebuild window after a single failure can exceed 24 hours, and the probability of a second failure during recovery is non-zero with this capacity.

Size this drive for cold-tier forensic archives or SAN-backed multi-NVR clusters where read latency and concurrent query performance directly impact investigator workflow. It's the right call for law enforcement evidence management or enterprise campuses with dozens of cameras feeding a centralized VMS.