Samsung MZQLB960HAJR-00007 960 GB PM983 PCIe 3.0 x4 U.2 (2.5") Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM983
Capacity	960 GB
Usage Class	Read Intensive

Interface

Host Interface	PCIe 3.0 x4
Total Interface Bandwidth	8 Gb/s

Physical Dimension

Form Factor	U.2 (2.5")

Flash & Endurance

NAND Flash	Samsung V-NAND 3-bit TLC
Drive Writes Per Day	1.3
Total Bytes Written	1366 TBW

Performance

Sequential Read	3000 MB/s
Sequential Write	1100 MB/s
Random Read IOPS	400000
Random Write IOPS	40000
Average Latency	85 μs

Reliability

Mean Time Between Failures	2 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	MZ-7LH9600

Engineer's Note

Compared with the MZ-7LH9600 generation, the PM983 MZQLB960HAJR-00007 upgrades to a PCIe 3.0 x4 NVMe architecture and delivers up to 3000/1100 MB/s sequential throughput with 400,000/40,000 IOPS, providing a clear step up in bandwidth and transaction density for 1U/2U server platforms. Its 960 GB capacity, Samsung 3-bit TLC V-NAND, and 1.3 DWPD / 1366 TBW endurance make it a strong fit for read-intensive virtualization, scale-out web, and cloud boot-volume deployments where better queue-depth efficiency and lower storage latency than the prior generation are critical.

Endurance & Reliability

With an endurance rating of 1,366 TBW and 1.3 DWPD, the MZQLB960HAJR-00007 is built to handle sustained daily write activity well beyond typical OS, application, and general server boot-drive workloads. In practical terms, for common enterprise system-disk use, this level of endurance supports many years of stable operation and can comfortably cover long-term deployment scenarios with strong write-life margin. For enterprise reliability, integrated Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity if power is interrupted unexpectedly, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of uncorrectable read errors and reinforces confidence in consistent, data-center-grade operation.

Technical Specs & Insights

1. The PCIe 3.0 x4 NVMe interface, paired with 3000 MB/s sequential read performance, accelerates large database scans, VM boot storms, and backup restores without saturating legacy enterprise server platforms.
2. With 400,000 random read IOPS, this drive sustains fast response under heavily concurrent OLTP, metadata, and virtualization workloads where small-block access dominates.
3. Rated at 1.3 DWPD, it supports steady daily rewrite activity across its service life, making it a practical fit for mixed-use enterprise deployments that need predictable endurance without stepping up to full write-intensive media.
4. Samsung V-NAND 3-bit TLC balances cost efficiency, capacity density, and enterprise-class consistency, enabling lower $/TB while still supporting mainstream datacenter performance expectations.
5. A typical latency of 85 µs helps reduce tail-response delays in latency-sensitive applications, improving transaction smoothness and overall QoS in shared storage environments.

Capacity Sweet

Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB Capacity positioning analysis: In this series, the 960 GB model sits at the sweet spot between the 480 GB and 1.92 TB options. Compared with 480 GB, it gives much better headroom for OS images, logs, hot data, and future workload growth, reducing the risk of early capacity pressure. Compared with 1.92 TB, it preserves nearly the same enterprise-class read/write and random IOPS behavior while offering a more efficient cost-per-node balance. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for about 40 to 60 virtual machines.

FAQ