Lenovo 7N47A00116 Thinksystem 3.5INCH PM863A 480GB Entry SATA 6GB HOT Swap SSD

Lenovo 7N47A00116 ThinkSystem 3.5-Inch PM863A 480GB Entry SATA 6Gb/s Hot-Swap SSD

Overview

The Lenovo 7N47A00116 is a 480GB enterprise-grade SATA solid-state drive in a 3.5-inch hot-swap form factor, purpose-built for ThinkSystem server platforms. Designed as an entry-level SSD for read-intensive and mixed workloads, it delivers a meaningful performance step up from spinning disk without the cost of high-endurance write-optimized drives — the correct trade-off for logging, OS boot, or light database workloads where write cycles are moderate and read throughput is the bottleneck. If you are speccing storage for a network video recorder or a server node handling camera indexing and metadata, this drive's latency profile and MTBF rating make it a credible candidate.

At 480GB on a standard 3.5-inch tray, the 7N47A00116 installs into any ThinkSystem chassis that accepts LFF (large form factor) hot-swap bays — no adapter required, no downtime for a hot-swap replacement. The SATA 6Gb/s interface is universally supported across enterprise server storage backplanes, making integration straightforward in mixed-drive environments.

Key Features

• 480GB Capacity on a 3.5-Inch Tray: Fits directly into LFF hot-swap bays without a sled adapter. For reference, 480GB comfortably holds OS volumes, application binaries, and moderate data sets without the cost premium of higher-capacity SSD tiers.
• SATA 6Gb/s Interface (520 MB/s Sequential Read): At 520 MB/s sequential read, this drive saturates the SATA III bus for large-block transfers — practical for video file retrieval, database backups, and bulk log reads. Sequential write reaches 480 MB/s, keeping up on bulk ingest without becoming a pipeline bottleneck.
• 97,000 IOPS Random Read (4KB): For workloads that hammer small random reads — think VMS index lookups, authentication databases, or OS swap — 97K IOPS is roughly 20–30x what a comparable spinning drive delivers. The 130 µs read latency reinforces this: requests that would stall a HDD for milliseconds resolve in under a quarter of a millisecond here.
• 16,000 IOPS Random Write (4KB) at 30 µs Write Latency: Write IOPS is intentionally lower than read — this is an entry/read-optimized SSD. At 16K write IOPS and 30 µs latency, it handles mixed workloads cleanly but is not the right pick for heavy transactional databases or high-endurance write-cycling applications. Know your write amplification factor before deploying in write-heavy OLTP roles.
• Hot-Swap Capable: Pull and replace under power without taking the server offline. In multi-drive server arrays — especially in always-on surveillance or access control infrastructure — hot-swap capability means a failed drive gets swapped during business hours without a maintenance window. Pair this with a RAID controller for non-disruptive rebuild.
• 2,000,000-Hour MTBF: The 2-million-hour mean time between failures is not a guarantee of individual drive life, but it reflects the component-quality tier and failure-rate assumptions used in enterprise capacity planning. For a storage array running 24/7 in a commercial server environment, this rating supports long-term reliability modeling alongside your RAID strategy.
• 3W Active Power (Read and Write): Drawing only 3W under both read and write loads, this drive contributes minimally to chassis power budgets. In a dense multi-drive configuration, the difference between SSD and HDD power draw adds up quickly — HDDs typically pull 6–10W active, so each SSD substitution cuts per-drive power roughly in half.
• 1,500G Operating Shock / 2.17G Operating Vibration Tolerance: Solid-state storage has an inherent advantage in environments with vibration — no read/write head to lose track, no spindle to destabilize. The 1,500G shock rating and 2.17G vibration spec mean this drive handles rough handling during installation and tolerates shared-rack vibration from adjacent spinning drives or cooling infrastructure without performance degradation.

Integration and Compatibility

The 7N47A00116 is engineered for Lenovo ThinkSystem platforms — check the ThinkSystem compatibility matrix for your specific server model before ordering. The SATA 6Gb/s interface is backward-compatible with SATA 3Gb/s backplanes at reduced throughput, though deploying a 6Gb/s drive on a 3Gb/s controller caps sequential performance at roughly half the rated speed. Verify your HBA or RAID controller's firmware revision supports the PM863A device ID if you encounter initialization issues on older controller revisions.

The 3.5-inch hot-swap tray format is not compatible with 2.5-inch SFF bays without a separate drive carrier — this is a common source of ordering errors when mixing LFF and SFF chassis in the same rack. Confirm bay format before purchasing.

Frequently Asked Questions

Q: Is the Lenovo 7N47A00116 a hot-swap drive?

A: Yes. The 7N47A00116 is hot-swap capable, meaning it can be removed and replaced while the server remains powered on. This requires a compatible hot-swap backplane and RAID controller — confirm your ThinkSystem chassis supports hot-swap in the target bay.

Q: What is the sequential read and write speed of the 7N47A00116?

A: Sequential read is rated at 520 MB/s and sequential write at 480 MB/s over the SATA 6Gb/s interface. Random 4KB read IOPS reaches 97,000; random 4KB write IOPS is 16,000.

Q: Is this drive read-optimized or write-optimized?

A: The PM863A is an entry/read-optimized SSD. Its read IOPS (97,000) significantly outpaces its write IOPS (16,000), and the endurance rating reflects lighter write duty cycles. It is well-suited to read-intensive server workloads like OS boot, logging retrieval, and VMS metadata indexing — not high-write transactional databases.

Q: What form factor does the 7N47A00116 use?

A: The drive uses a 3.5-inch (LFF) hot-swap form factor. It is not compatible with 2.5-inch SFF bays without a separate carrier adapter. Verify your ThinkSystem chassis bay type before ordering.

Q: What is the MTBF rating for the 7N47A00116?

A: The drive carries a 2,000,000-hour (2 million hour) MTBF rating, suitable for 24/7 enterprise and surveillance server environments.

Q: How much power does the 7N47A00116 consume?

A: Active power consumption is 3W for both read and write operations — significantly lower than comparable spinning HDDs, which typically draw 6–10W active. This matters in dense multi-drive configurations where aggregate power budget is a constraint.

Marty Allison

The 7N47A00116 is one of those drives that earns its place in a rack not through headline specs but through the combination of hot-swap mechanics, low power draw, and a 2-million-hour MTBF that makes capacity planning straightforward. The 97,000 read IOPS at 130 µs latency is the number I keep coming back to when evaluating this against spinning disk for surveillance server roles.

Technical Highlights:

• 97K / 16K IOPS Split: The asymmetric IOPS profile tells you exactly what this drive is built for — read-dominant server roles. Read IOPS is 6x the write IOPS figure, which maps directly to workloads like VMS index retrieval, OS paging, and log reads where read frequency dwarfs writes by an order of magnitude.
• 130 µs Read / 30 µs Write Latency: Sub-millisecond latency on both operations means application threads are not waiting on storage. For a surveillance management server juggling concurrent playback requests and live-stream indexing, this latency profile keeps the CPU fed rather than stalled on I/O.
• 3W Active Power (Read + Write): At 3W flat across both read and write states, this drive is simple to budget in dense configurations. A 12-drive tray pulls just 36W total from storage — versus 72–120W for equivalent-slot HDDs. The difference matters when you are near chassis or PDU limits.

Deployment Considerations:

• Verify LFF hot-swap bay availability in your specific ThinkSystem model before committing — this is a 3.5-inch tray drive and will not seat in an SFF bay without a separate carrier. Ordering the wrong carrier is the most common field mistake with this SKU.
• Write endurance is the key constraint here: the PM863A entry classification means it is not rated for sustained high-write workloads. If your application writes more than it reads — transactional DB, continuous video ingest without tiering — step up to a higher-endurance drive variant in the ThinkSystem SSD lineup.

This drive is the right fit for ThinkSystem nodes handling read-heavy workloads in commercial surveillance, access control, and enterprise IT infrastructure — specifically where you want SSD responsiveness and hot-swap serviceability without paying for write endurance you will never use.