Lenovo 4XB7B07612 Thinksystem 2.5IN VA 800GB Mixed USE SAS 24GB HS SSD

Lenovo 4XB7B07612 ThinkSystem 800GB Mixed-Use 2.5in SAS 24Gb Hot-Swap SSD

Overview

The Lenovo 4XB7B07612 is an 800GB 2.5-inch SAS 24Gb/s hot-swap solid-state drive engineered for mixed-use workloads in ThinkSystem servers — the right storage component when your application splits time between sustained reads and frequent, punishing write cycles. At 3 Drive Writes Per Day (DWPD), this drive is built for transactional databases, analytics platforms, video surveillance recording servers, and any workload that cannot afford the write-endurance ceiling you hit with read-optimized SSDs. If you are sizing storage for a multi-channel NVR or a server-side VMS platform writing continuously from dozens of cameras, endurance is the number that matters most — and 3 DWPD on an 800GB drive means roughly 2.4TB of writes you can push through it every day, indefinitely.

Pair this drive with a compatible network video recorder or server-class VMS platform to get the sustained write throughput surveillance environments demand. For teams building out server storage arrays for enterprise deployments, the hot-swap form factor means planned maintenance does not require a service window that takes the system offline.

Key Features

• 800GB Capacity at 3 DWPD Endurance: Mixed-use endurance rating means this drive handles 2.4TB of daily writes without degradation — critical for 24/7 surveillance recording servers or transactional database workloads where read-optimized drives fail early. If you have previously dealt with premature SSD wear-out in write-heavy applications, the 3 DWPD rating is the spec to evaluate first.
• 380,000 / 108,000 IOPS (Random Read / Write at 4KB): 380K random read IOPS handles query-intensive analytics and simultaneous playback from multiple users without queue depth saturation. The 108K random write IOPS sustains ingestion from high-channel-count recording systems without dropping frames to storage latency. These are not burst numbers — they reflect the drive's steady-state capability under real mixed workloads.
• 120 µs Read Latency / 45 µs Write Latency: Sub-millisecond access on both read and write paths keeps VMS playback responsive and database transactions below the latency threshold that triggers application timeouts. The 45 µs write latency is especially relevant for surveillance applications where late writes mean lost frames.
• SAS 24Gb/s Interface: SAS 24Gb/s doubles the per-lane bandwidth of SAS 12Gb/s and delivers enterprise-grade dual-port redundancy — if one path to the backplane fails, the second path keeps the drive online without interruption. This is why SAS remains the interface of choice for mission-critical server storage where a single point of failure is not acceptable.
• Hot-Swap Design: The hot-swap carrier allows drive replacement under power without bringing the server or storage array offline. In a surveillance environment recording continuously, this means a failed drive can be swapped and a rebuild initiated during live operation — no gap in recording, no emergency maintenance window.
• MTBF of 2,000,000 Hours: A 2-million-hour mean time between failures rating reflects the reliability target for enterprise-class server components. Across a populated storage array, this directly translates to lower unplanned failure rates and fewer emergency replacements over the deployment lifetime.
• UBER < 1 per 10^17 Bits Read: The uncorrectable bit error rate is effectively zero at scale — you would need to read approximately 12.5 petabytes of data before statistically encountering a single uncorrectable error. For long-retention video archives or compliance-sensitive data stores, this is the data integrity metric that auditors and system architects look at.
• S.M.A.R.T. Monitoring Support: Native S.M.A.R.T. integration surfaces drive health data to your server management platform, enabling predictive maintenance before a failure occurs — rather than discovering the problem during an incident review when footage is already missing.
• Power Draw: 11.5W Read / 14.7W Write: Power consumption stays under 15W even at peak write load. In a dense storage shelf with 24 or more drives, per-drive wattage compounds quickly — knowing the 4XB7B07612 stays at 14.7W maximum helps you size PDUs and cooling without over-provisioning.
• Multi-Certification Compliance: Ships with UL, TÜV, FCC, IC, CB, CE, C-Tick, BSMI, KCC, and VCCI certifications — covering North American, European, and Asia-Pacific regulatory requirements. Relevant for multi-region deployments where a single SKU needs to clear customs and compliance across territories without local re-certification.

Integration and Compatibility

The 4XB7B07612 is designed for Lenovo ThinkSystem servers that support 2.5-inch SAS 24Gb/s hot-swap bays. Verify your server's storage backplane supports SAS 24Gb/s — SAS 12Gb/s backplanes will accept the drive but will cap bandwidth at the backplane's rated speed. This drive does not support NVMe; it is a SAS protocol device and requires a SAS HBA or SAS-capable storage controller. The drive is not NVMe, so do not specify it for platforms requiring PCIe-attached storage. Hot-swap functionality depends on the server chassis supporting a hot-swap backplane — confirm this in your ThinkSystem server documentation before specifying the drive for a replacement scenario. For high-channel VMS storage builds, pair with a RAID controller that exposes the S.M.A.R.T. data per-drive so your monitoring platform can surface predictive health alerts before a failure affects recording continuity.

Frequently Asked Questions

Q: What workloads is the 4XB7B07612 rated for — is it read-optimized or write-optimized?

A: It is a mixed-use drive rated at 3 Drive Writes Per Day (DWPD). That puts it between read-optimized (1 DWPD) and write-intensive (10+ DWPD) drives. Mixed-use is the right choice for surveillance recording servers, transactional databases, and applications that combine heavy sequential writes with frequent read queries.

Q: Does the 4XB7B07612 support NVMe?

A: No. This drive uses the SAS 24Gb/s interface and SAS protocol. It requires a SAS HBA or SAS-capable storage controller. It is not compatible with NVMe-only backplanes or U.2/M.2 slots.

Q: What is the drive's IOPS performance under a mixed read/write workload?

A: The drive delivers 380,000 IOPS random read and 108,000 IOPS random write at 4KB block size. These figures reflect the drive's steady-state performance under real mixed workloads, not synthetic burst peaks.

Q: Can this drive be replaced without powering down the server?

A: Yes. The 4XB7B07612 is a hot-swap drive. Provided your ThinkSystem server chassis supports a hot-swap backplane, you can remove and replace the drive under power without interrupting server operation or stopping recordings.

Q: What certifications does this drive carry for international deployments?

A: The drive carries UL, TÜV, FCC, IC, CB, CE Mark, C-Tick, BSMI (Taiwan), KCC (Korea EMI), and VCCI certifications — covering North American, European, and major Asia-Pacific regulatory requirements.

Q: What is the write latency and why does it matter for surveillance applications?

A: Write latency is 45 microseconds. In surveillance recording environments, high write latency is a direct cause of dropped frames and recording gaps. At 45 µs, the drive keeps pace with continuous multi-stream ingest without introducing storage-side latency that buffers can't absorb.

Karl Wilson

When I spec storage for a high-channel surveillance recording server, the number I look at first is DWPD — and the 4XB7B07612's 3 DWPD rating is what separates this drive from the read-optimized 1 DWPD alternatives that tend to show up in lower-cost configurations. On an 800GB drive, 3 DWPD translates to roughly 2.4TB of daily writes, which comfortably covers continuous ingest from 64+ HD camera streams depending on bitrate. That endurance headroom is the reason this drive belongs in production surveillance servers, not value-tier read-optimized parts that wear out in 18 months under real recording loads.

Technical Highlights:

• 3 DWPD Mixed-Use Endurance: 2.4TB of sustained daily writes without degradation — the threshold that distinguishes drives appropriate for continuous surveillance recording from those sized for light write workloads. Read-optimized drives at 1 DWPD will hit their TBW ceiling far sooner under the same load.
• 45 µs Write Latency: Storage latency under 50 microseconds keeps the write path clear during peak ingest. When you have dozens of simultaneous streams writing to the same array, per-drive write latency is a compounding factor — 45 µs leaves substantial headroom before latency-induced frame drops become a concern.
• UBER < 1 per 10^17 Bits: For a compliance-sensitive video archive — courtroom footage, financial trading floors, healthcare facilities — this error rate spec is the one your auditor will ask about. At this UBER rating, data integrity over multi-year retention is not a meaningful concern.

Deployment Considerations:

• Verify your ThinkSystem server backplane is SAS 24Gb/s rated before specifying this drive. A SAS 12Gb/s backplane will accept the drive physically but cap throughput at the older standard's bandwidth ceiling — you will pay for 24Gb/s performance and not use it.
• At 14.7W peak write power, a fully populated SAS shelf can push significant per-chassis wattage. Run the power budget before finalizing drive count — dense configurations can surprise facility managers who sized the rack PDUs based on spinning disk assumptions.

This drive is the right specification for a ThinkSystem-based VMS appliance or enterprise NVR where recording continuity is non-negotiable and the storage layer needs to sustain write pressure across multiple shifts without endurance-related degradation over a 5-year deployment horizon.