Lenovo 4XB7A93482 Thinksystem 2.5IN U.2 CD8P 7.68TB Read Intensive NVME PCIE 5.0 X4 HS SSD

Lenovo 4XB7A93482 ThinkSystem 7.68TB PCIe 5.0 NVMe U.2 Read Intensive SSD

Overview

The Lenovo 4XB7A93482 is a 7.68TB, 2.5-inch U.2 hot-swap NVMe SSD built on PCIe 5.0 x4 — Lenovo's current-generation enterprise storage component for ThinkSystem servers where read throughput and low latency are the primary constraints. The CD8P series targets read-intensive workloads: analytics platforms, object storage front-ends, AI inference caching, and database read replicas where write amplification from mixed I/O would waste both endurance and cost on a more expensive write-optimized drive.

At 12,000 MB/s sequential read and 2,000,000 random read IOPS (4K), this drive sits at the practical ceiling of what PCIe 5.0 x4 delivers today. If your bottleneck is read throughput — not write — the 4XB7A93482 is sized correctly for a high-density ThinkSystem configuration. Explore the full Lenovo server storage catalog or browse enterprise NVMe SSDs to compare workload-matched options.

Key Features

• PCIe 5.0 x4 Interface — Twice the Bandwidth of Gen 4: The x4 PCIe 5.0 lane allocation delivers a raw interface ceiling above 16 GB/s — enough headroom that the drive's 12,000 MB/s sequential read and 5,500 MB/s sequential write are interface-limited by the SSD's NAND, not the bus. This matters when you're populating multiple drives per server: no bandwidth starvation at the PCIe root complex even with sustained parallel reads.
• 2,000,000 Random Read IOPS at 4K: Two million IOPS on 4K random reads is the number that matters for latency-sensitive read workloads — in-memory database spill-over reads, AI inference model loading, and hot-tier object storage. Paired with a 69 µs read latency ceiling, the drive keeps queue depths low and response times predictable under sustained concurrent access.
• 69 µs Read Latency / 10 µs Write Latency: Sub-100 µs read latency is the threshold where NVMe stops being a bottleneck in most application stacks. The 4XB7A93482 hits 69 µs read and a tighter 10 µs write — the write number is particularly useful for write bursts that occur even in read-dominated workloads (journal commits, metadata updates).
• 7.68 TB in a 2.5-Inch U.2 Hot-Swap Carrier: The U.2 (SFF-8639) form factor is the standard enterprise drive bay interface on ThinkSystem 2.5-inch bays. Hot-swap support means drives can be replaced under power without taking the server offline — critical for storage-dense deployments running 24/7 that cannot tolerate maintenance windows for single-drive replacement.
• TLC NAND — Capacity-Optimized Endurance Profile: Triple-level cell NAND gives the CD8P its 7.68TB density at a lower cost per terabyte than SLC or MLC alternatives. For read-intensive deployments, TLC endurance is not a limiting factor — RI workloads write infrequently enough that TLC's lower P/E cycle count rarely comes into play over a standard server lifecycle. Pair this with the right server storage solution for your retention requirements.
• TCG Opal 2.0 Hardware Encryption: Full-drive hardware encryption via TCG Opal 2.0 offloads cryptographic operations to the SSD controller — no CPU overhead, no performance penalty on read throughput. For environments subject to data-at-rest requirements (HIPAA, FedRAMP, SOC 2 Type II), Opal 2.0 is the standard self-encrypting drive protocol supported by most enterprise key management systems without custom driver work.
• S.M.A.R.T. Monitoring Support: Native S.M.A.R.T. attribute reporting integrates with Lenovo XClarity, third-party IPMI-based tools, and OS-level smartmontools for predictive failure alerting. In a multi-drive server, early wear indicator thresholds caught via S.M.A.R.T. polling give ops teams days to weeks of lead time before a drive fails — meaningful when a single U.2 slot holds 7.68TB of active data.
• Read-Intensive Workload Classification (RI): The RI designation is not just marketing segmentation — it reflects the drive's endurance rating and write cache architecture. RI drives are tested and warrantied for workloads where reads constitute the large majority of I/O. Deploying an RI drive in a write-heavy mixed workload (OLTP primary, video ingest, log aggregation) will exhaust NAND endurance faster than spec and may void warranty terms. Match the workload class before deploying.

Integration and Compatibility

The 4XB7A93482 is a ThinkSystem-branded component, meaning it is qualified and sold for installation in Lenovo ThinkSystem server platforms that support 2.5-inch U.2 NVMe hot-swap bays with PCIe 5.0 backplane connectivity. The U.2 (SFF-8639) connector is physically compatible with PCIe 5.0 x4 backplanes — confirm your specific ThinkSystem model's backplane generation before ordering, as PCIe 4.0 backplanes will accept the drive physically but cap throughput below the drive's rated performance.

TCG Opal 2.0 encryption management integrates with Lenovo XClarity Administrator and third-party ISV key management solutions that support the Opal 2.0 standard (Symantec, WinMagic, McAfee). S.M.A.R.T. reporting is accessible via standard NVMe management interfaces and integrates with Lenovo XClarity for threshold-based alerting. For AI inference or analytics caching deployments, pairing with appropriate storage controllers and ThinkSystem rack servers ensures validated compatibility across the storage stack.

Frequently Asked Questions

Q: What is the random read IOPS rating on the 4XB7A93482?

A: The 4XB7A93482 is rated for 2,000,000 IOPS on 4K random reads and 200,000 IOPS on 4K random writes, making it suited for read-dominated enterprise workloads such as analytics, AI inference caching, and database read replicas.

Q: Is the 4XB7A93482 compatible with PCIe 4.0 backplanes?

A: The U.2 (SFF-8639) connector is physically compatible with PCIe 4.0 backplanes, but the drive is rated for PCIe 5.0 x4. Installing it in a PCIe 4.0 system will limit throughput to that generation's bandwidth ceiling — sequential read performance will fall well below the rated 12,000 MB/s. Verify your ThinkSystem server's backplane generation before purchasing.

Q: Does the Lenovo 4XB7A93482 support hardware encryption?

A: Yes. The drive includes TCG Opal 2.0 hardware-based self-encryption. Cryptographic operations run on the SSD controller with no measurable impact on read or write throughput. Opal 2.0 is compatible with most enterprise key management systems and does not require custom drivers on supported platforms.

Q: Can the 4XB7A93482 be replaced without taking the server offline?

A: Yes. The drive supports hot-swap, meaning it can be removed and replaced while the server remains powered and operational — standard for enterprise 2.5-inch U.2 bays in ThinkSystem platforms with hot-swap backplane support.

Q: Is this drive appropriate for write-intensive workloads like video ingest or OLTP primary databases?

A: No. The CD8P is an RI (Read Intensive) classified drive optimized for workloads where reads dominate. TLC NAND endurance is tuned for low write duty cycles. Deploying it in sustained write-heavy environments — primary OLTP, video surveillance ingest, log aggregation — will reduce drive lifespan and may affect warranty coverage. Use a mixed-use (MU) or write-intensive (WI) classified drive for those scenarios.

Q: What sequential throughput does the 4XB7A93482 deliver?

A: The drive delivers up to 12,000 MB/s sequential read and 5,500 MB/s sequential write (ATTO benchmark). These figures reflect PCIe 5.0 x4 bandwidth utilization and are among the highest available for enterprise U.2 NVMe drives in the 7.68TB capacity class.

James Everett

The spec that defines where the 4XB7A93482 belongs in a ThinkSystem storage tier is the 2,000,000 IOPS random read figure — paired with a 69 µs read latency ceiling, this drive is positioned for the hottest read tier in an AI inference or analytics node, not general-purpose mixed I/O. If you're building a storage tier where sequential read throughput and IOPS density matter more than write endurance, the 4XB7A93482 delivers PCIe 5.0 performance in a standard hot-swap U.2 package.

Technical Highlights:

• 12,000 MB/s Sequential Read: At PCIe 5.0 x4, the drive sustains 12 GB/s sequential reads — relevant for large-block AI model loading, columnar analytics scans, and backup restore operations where throughput is the direct limiting factor on job completion time.
• TCG Opal 2.0 Hardware Encryption: Full-drive encryption with zero CPU tax. In multi-tenant or regulated environments, Opal 2.0 eliminates the performance argument against encryption — the SSD controller handles it transparently at full rated throughput.
• 200,000 Write IOPS / 10 µs Write Latency: Even at RI classification, the CD8P handles write bursts efficiently — 200K IOPS and 10 µs write latency keep metadata and journal commits from stalling read-dominant query pipelines during mixed-phase operations.

Deployment Considerations:

• Confirm PCIe 5.0 backplane support in your specific ThinkSystem model before ordering — the U.2 connector fits PCIe 4.0 bays physically, but you will not reach the rated 12,000 MB/s sequential read on a Gen 4 backplane. This is a common spec mismatch in phased server refresh cycles.
• RI classification means the drive's NAND endurance budget is sized for read-heavy I/O ratios. If your actual workload mix shifts above roughly 30% writes sustained, plan on a mixed-use (MU) drive instead — running RI NAND at high write duty cycles shortens the usable lifespan measurably.

The 4XB7A93482 is the right drive for a ThinkSystem AI inference node or read-tier analytics cluster where the workload is validated RI: model serving, OLAP query acceleration, or warm-tier object storage front-ends with low write amplification. It is not a substitute for a mixed-use drive in general-purpose server configurations.