HPE 3.84TB NVME RI E3S EC1 PE1010 SSD - P77271-B21

HPE P77271-B21 3.84TB NVMe E3.S Read-Intensive SSD for Gen 11 Servers

Overview

The HPE P77271-B21 is a 3.84TB E3.S NVMe solid-state drive built specifically for HPE Gen 11 server platforms where read-dominated workloads — surveillance video indexing, security event databases, analytics data lakes — demand high sustained throughput without the cost of write-intensive flash. Riding the PCIe NVMe 5.0 interface, this drive delivers 1,295,535 random 4K read IOPS, a figure that reframes what 'read-intensive' means on modern server infrastructure. If your deployment is bottlenecked on storage read latency under concurrent camera stream access or forensic search, the P77271-B21 addresses that directly at the hardware layer.

The E3.S form factor (also searched as P77271 B21) is the enterprise compute standard replacing older 2.5" U.2 drives in Gen 11 chassis — denser, thermally engineered for sustained NVMe 5.0 bandwidths. At 1.19 lb and 4.6 inches, it slots into compatible HPE Gen 11 drive bays without adapters or brackets.

Key Features

• PCIe NVMe 5.0 Interface: Gen 5 PCIe doubles the lane bandwidth of PCIe 4.0, which means 1,295,535 random 4K read IOPS isn't a burst number — the bus can sustain it. In multi-camera NVR or AI analytics servers reading footage from dozens of concurrent streams, that headroom prevents the latency spikes that cause dropped frames or delayed forensic retrieval.
• 3.84TB Capacity in E3.S Form Factor: 3.84TB in a single E3.S slot is a meaningful density step for Gen 11 chassis with limited drive bays. A 24-bay server fully populated reaches 92TB of all-NVMe storage — enough for 30+ days of high-resolution multi-channel surveillance retention without spinning-disk expansion shelves.
• 1,295,535 Random 4K Read IOPS: This is the primary spec to evaluate for video surveillance indexing and concurrent playback workloads. High random read IOPS means the storage subsystem can serve simultaneous forensic search queries, VMS export requests, and live-stream buffering without I/O queuing — directly impacts operator responsiveness during incident review.
• 264,090 Random 4K Write IOPS: Write performance is secondary on a read-intensive drive, but 264K write IOPS is still substantial. Continuous CCTV ingestion from dozens of high-resolution cameras generates sustained sequential writes — this drive handles that load without throttling, even if it isn't optimized for random write-heavy OLTP patterns.
• 1.39 DWPD Read-Intensive Endurance: 1.39 drive writes per day is the correct endurance class for surveillance and analytics workloads. Video NVR environments write data once and read it many times — endurance-class drives (3–10 DWPD) carry a price premium you don't need here. 1.39 DWPD calibrated to the actual write ratio keeps total cost of ownership in check across a 3–5 year deployment lifecycle.
• E3.S Form Factor, Gen 11 Compatibility: Designed and validated for HPE Gen 11 servers — ProLiant DL, ML, and Apollo platforms with E3.S backplanes. HPE's firmware integration means this drive surfaces correctly in iLO, Smart Storage Administrator, and SPP (Service Pack for ProLiant) without third-party driver work. Drop-in provisioning in compatible Gen 11 chassis.
• Internal Drive, 1.19 lb: At 1.19 lb, this is a standard server drive weight — no structural modifications to chassis drive cages. The 4.6-inch E3.S standard dimension means hot-swap capability on supported Gen 11 backplanes, enabling drive replacement without server downtime on platforms configured for redundant storage.

Integration & Compatibility

The P77271-B21 is validated for HPE Gen 11 server platforms. Gen 11 covers the ProLiant DL360, DL380, DL560, DL580, ML350, and Apollo series equipped with E3.S NVMe backplanes. Deploying this drive in a Gen 10 or older platform is not supported — the E3.S connector and PCIe 5.0 signaling are Gen 11-specific. Confirm your server's HPE QuickSpecs lists E3.S NVMe support before ordering.

For network video recorders and surveillance server builds, this drive pairs naturally with HPE's Smart Array or direct-attach NVMe configurations. In a direct NVMe topology (no RAID controller in the path), you get the full 1.295M IOPS benefit; RAID controller interposition will reduce effective IOPS depending on the controller's NVMe queue depth. Reference the server storage category for compatible HPE Gen 11 storage accessories and expansion options.

Integrators sourcing storage for video analytics platforms — GPU-accelerated AI inference servers, edge compute nodes running LPR or object classification — will find this drive's read IOPS profile well-matched to the inference pipeline's constant model-weight and frame-buffer reads. Pair with HPE server platforms for a validated, factory-new stack. For broader storage planning in surveillance deployments, the storage and retention planning guide covers capacity sizing by camera count, resolution, and retention window.

Frequently Asked Questions

Q: What servers is the HPE P77271-B21 compatible with?

A: The P77271-B21 is validated for HPE Gen 11 servers. It uses the E3.S form factor and PCIe NVMe 5.0 interface, which are specific to Gen 11 platforms. It is not compatible with Gen 10 or earlier HPE servers that use U.2 or SATA drive bays.

Q: What does 1.39 DWPD mean, and is it enough for surveillance recording?

A: DWPD (Drive Writes Per Day) measures how many times you can overwrite the full drive capacity daily over the rated life. At 1.39 DWPD, this is a read-intensive class drive — correct for surveillance NVR workloads where video is written once and read many times. If your workload involves heavy random writes (transactional databases, write-heavy analytics), a higher DWPD endurance class would be more appropriate.

Q: Can the P77271-B21 be hot-swapped?

A: Hot-swap capability depends on your specific HPE Gen 11 server's backplane configuration. On Gen 11 platforms with hot-swap E3.S NVMe backplanes, the drive supports hot-swap replacement without powering down the server. Confirm your server's backplane supports hot-swap NVMe before relying on this for live replacement.

Q: What is the E3.S form factor, and how does it differ from U.2?

A: E3.S is the next-generation enterprise SSD form factor standardized for PCIe 5.0 NVMe drives. It replaces U.2 (2.5-inch) in HPE Gen 11 platforms, offering improved thermal management and higher-density chassis configurations. E3.S drives are not physically compatible with U.2 slots — backplane and chassis support must be confirmed for your specific server model.

Q: What is the random read IOPS on the P77271-B21?

A: The P77271-B21 delivers 1,295,535 random 4K read IOPS. This is the primary performance metric for read-dominated workloads such as concurrent video stream playback, forensic search, and AI inference frame reads. Random 4K write IOPS is 264,090.

Q: Is the P77271-B21 suitable for AI video analytics servers?

A: Yes. AI inference pipelines on surveillance platforms — license plate recognition, object classification, behavioral analytics — generate sustained random read I/O against model weights and frame buffers. The P77271-B21's 1.295M read IOPS and PCIe NVMe 5.0 bandwidth make it well-suited as primary storage in GPU-accelerated HPE Gen 11 analytics nodes, provided the server platform supports E3.S NVMe backplanes.

Karl Wilson

The P77271-B21 is one of the more purpose-built storage options I've evaluated for HPE Gen 11 surveillance infrastructure — specifically because of how precisely its 1.39 DWPD endurance rating maps to actual NVR write patterns. Most integrators over-specify endurance here, paying a 40–60% cost premium for 3 DWPD drives that will see 0.3 DWPD actual utilization in a write-once, read-many video archive. The 1,295,535 random 4K read IOPS on this drive is the number that actually matters for your forensic and analytics queries.

Technical Highlights:

• PCIe NVMe 5.0 Bus: Gen 5 PCIe doubles the effective lane bandwidth versus PCIe 4.0. In a multi-drive Gen 11 NVMe topology, this means the bus is no longer the ceiling — storage I/O scales with drive count rather than hitting a shared bandwidth wall at high camera counts.
• 1,295,535 Random 4K Read IOPS: For concurrent VMS playback or AI inference workloads pulling frame data continuously, this IOPS floor means you can serve dozens of simultaneous operator sessions without I/O queue depth becoming a latency factor.
• 3.84TB E3.S Capacity: In a Gen 11 chassis with 24 E3.S bays, you're looking at 92TB all-NVMe — that's 30+ days of 64-channel 4K retention at typical H.265 bitrates without tiering to SAS or SATA expansion. Single-tier, all-NVMe simplifies the storage architecture considerably.

Deployment Considerations:

• Validate E3.S NVMe backplane support in your specific Gen 11 server model before provisioning — not all Gen 11 chassis ship with E3.S backplanes; some still use U.2 or SATA configurations depending on the SKU ordered.
• In direct-attach NVMe topology you get the full 1.295M IOPS; routing through a RAID controller (even a Gen 11 Smart Array) will cap effective IOPS at the controller's queue depth and introduce latency — for surveillance, direct NVMe or software RAID (Windows Storage Spaces, Linux MD) is the better architecture if you need redundancy.

This drive is the right call for HPE Gen 11 nodes running video analytics inference engines or high-channel-count NVR workloads where concurrent read I/O is the bottleneck — not for write-intensive transactional storage, where you'd want to look at higher DWPD options in the HPE NVMe portfolio.