Lenovo 7XB7A00035 Thinksystem 2.5INCH 2TB 7.2K SAS 12GB HOT Swap 512N HDD

Lenovo 7XB7A00035 ThinkSystem 2.5-Inch 2TB 7.2K SAS 12Gb/s Hot-Swap HDD

Overview

The Lenovo 7XB7A00035 is a 2.5-inch, 2TB near-line SAS hard drive spinning at 7,200 RPM with a 12Gb/s SAS interface — purpose-built for Lenovo ThinkSystem servers where you need reliable bulk storage capacity in a hot-swap bay without stepping up to the cost of a full-speed 10K or 15K SAS drive. If you're provisioning secondary storage tiers, expanding NAS-attached capacity on a ThinkSystem chassis, or building out surveillance-grade sequential write pools, this is the economical spindle for the job. It ships as a single drive (1 pc per pack) and lands at 0.80 lb in a compact 7.00 × 2.00 × 5.00 in footprint.

The 512N sector format means it presents native 512-byte sectors to the host — relevant for any legacy OS or application stack that doesn't yet handle 512e or 4Kn addressing cleanly. Pair it with a compatible server storage infrastructure and you get a drive that slots directly into validated Lenovo configurations without firmware compatibility guesswork.

Key Features

• 2TB Capacity in a 2.5-Inch Form Factor: Two terabytes in a small-form-factor bay means higher rack density than 3.5-inch alternatives — useful when your ThinkSystem chassis has limited bays and you're maximizing usable storage per U. At 7,200 RPM this isn't a high-IOPS drive, but for sequential-heavy workloads (backup targets, video archive, bulk file storage) it delivers the throughput you need at a lower cost per gigabyte than SSD.
• SAS 12Gb/s Interface: The 12Gb/s SAS bus delivers twice the theoretical bandwidth of 6Gb/s SAS and four times SATA 3Gb/s — eliminating the interface as a bottleneck on sustained sequential reads and writes. In practice this matters most in multi-drive RAID arrays where aggregate throughput can saturate slower interfaces.
• Hot-Swap Capable: Hot-swap support means you can pull and replace a failed drive while the server stays running — critical in environments where downtime is not an option. Combined with a RAID controller, this drive supports online rebuilds without scheduling a maintenance window.
• 7,200 RPM Spindle Speed: At 7.2K RPM, this drive occupies the near-line tier: faster than the 5,400 RPM archive drives used for cold storage, but slower (and significantly cheaper) than 10K or 15K SAS drives. Right-size this for workloads that need predictable sequential throughput — surveillance video pools, backup repositories, log storage — rather than random IOPS-intensive databases.
• 512N Native Sector Format: Native 512-byte sectors ensure compatibility with older operating systems, hypervisors, and applications that predate the 512e/4Kn transition. No emulation layer, no alignment performance penalties — straightforward compatibility for mixed-vintage server environments.
• 5V Operating Voltage: Operates at 5V, consistent with standard SAS backplane power delivery in Lenovo ThinkSystem chassis. No special power conditioning or cabling required — drops into an existing backplane without additional hardware.
• Lenovo ThinkSystem Validated: Sourced for the ThinkSystem server line, this drive is matched to Lenovo's firmware and backplane validation matrix. Using validated drives avoids the predictive failure alerts and compatibility warnings that some ThinkSystem systems generate when unvalidated third-party drives are installed.

Integration and Compatibility

The 7XB7A00035 is designed for deployment inside Lenovo ThinkSystem servers using SAS backplanes with 2.5-inch hot-swap bays. It connects via the 12Gb/s SAS interface, which is backward-compatible with 6Gb/s SAS controllers — though link speed will negotiate down to the controller's maximum. Use with a SAS RAID controller (such as Lenovo's ThinkSystem RAID adapters) to enable RAID 5, 6, or 10 configurations with online spare and hot-swap rebuild capability.

For network-attached storage and video surveillance archive applications, the 7.2K spindle speed and 2TB capacity make this a practical choice for high-definition video pools writing sequentially at sustained rates. The 512N sector format is broadly compatible across Linux, Windows Server, and VMware ESXi environments without requiring partition alignment workarounds.

If you're planning a multi-drive array, review your storage planning resources to confirm backplane bay count, controller port count, and RAID rebuild time at this drive capacity before purchasing. A 2TB drive rebuild on a busy array can take several hours — factor that into your redundancy design.

Frequently Asked Questions

Q: What servers is the Lenovo 7XB7A00035 compatible with?

A: This drive is built for the Lenovo ThinkSystem server line with 2.5-inch hot-swap SAS bays. Verify your specific server model's hardware compatibility list (HCL) to confirm support before ordering.

Q: Is the 7XB7A00035 hot-swap capable?

A: Yes. The drive supports hot-swap, meaning it can be inserted or removed while the server is powered on — provided the server's backplane and RAID controller support hot-swap operation, which is standard on ThinkSystem platforms.

Q: What is the interface speed of this drive?

A: The drive uses a SAS 12Gb/s interface. It is backward-compatible with 6Gb/s SAS controllers, but the link will negotiate to the lower speed if the controller doesn't support 12Gb/s.

Q: What does 512N sector format mean for my environment?

A: 512N means the drive uses native 512-byte sectors — the traditional format. This ensures compatibility with older operating systems and applications that don't support 512e (512-byte emulation of 4K physical sectors) or native 4Kn drives. No special OS or driver configuration is needed.

Q: Can I use this drive for video surveillance storage?

A: Yes. The 7.2K RPM spindle speed and 2TB capacity suit sequential-write workloads like IP video recording. Deploy it in a RAID array inside a Lenovo ThinkSystem-based NVR or storage server for a cost-effective surveillance archive tier. For higher random-IOPS demands (active database workloads), consider a 10K SAS or SSD alternative.

Q: How many drives come in the package?

A: One drive per pack (1 pc per package).

Ted Perry

The 7XB7A00035 covers a specific gap in ThinkSystem storage builds: you need near-line capacity at 2.5-inch density, you don't want to pay for 10K SAS IOPS you won't use, and you need hot-swap for operational continuity. The 12Gb/s SAS interface and 7,200 RPM spindle hit that cost-performance crossover cleanly for sequential-dominant workloads.

Technical Highlights:

• 12Gb/s SAS Interface: Eliminates the interface as a throughput ceiling on sequential workloads — relevant when you're aggregating multiple drives in RAID 5 or 6 and the controller can saturate a 6Gb/s link.
• Hot-Swap Design: Enables drive replacement under power in ThinkSystem chassis with compatible backplanes — keeps the server online during fault recovery rather than forcing a maintenance window.
• 512N Sector Format: Native 512-byte sectors sidestep the alignment and emulation overhead that 512e drives introduce in mixed-vintage environments running older Linux kernels or Windows Server versions pre-2012.

Deployment Considerations:

• Confirm your ThinkSystem model's HCL entry for this drive before deployment — ThinkSystem systems can generate predictive failure warnings or refuse to report SMART data for drives outside the validated list, even if the drive functions correctly.
• At 2TB and 7.2K RPM, RAID 5/6 rebuild times on a loaded array can run several hours — size your spare drive inventory and rebuild priority settings accordingly to keep your redundancy window short.

Best fit for ThinkSystem-based surveillance NVR builds and backup repository servers where sequential write throughput matters more than random IOPS, and where SAS backplane density justifies 2.5-inch over 3.5-inch near-line alternatives.