Lenovo 4XB7A93785 Thinksystem 3.5 16TB 7.2K SATA 6GB HOT Swap 512E HDD V2

Lenovo 4XB7A93785 ThinkSystem 3.5" 16TB Hot-Swap SATA Hard Drive

Overview

The Lenovo 4XB7A93785 is a 16TB, 7.2K RPM, 3.5-inch hot-swap SATA 6Gb/s hard drive engineered for ThinkSystem servers. With 512e (512-byte emulation) sector formatting and the V2 designation, this drive is purpose-built for high-density storage workloads where downtime is not an option — hot-swap support means a failed unit can be swapped under load without taking the server offline, a non-trivial operational advantage in production environments running 24/7.

Manufactured in Mexico and classified under UNSPSC 43201803 (computer storage devices), the 4XB7A93785 connects via the SATA interface and is sized for standard LFF (large form factor) bays in compatible ThinkSystem chassis.

Key Features

• 16TB Capacity: delivers substantial raw storage per bay — useful for video retention on surveillance NVRs or bulk data in server storage pools where per-bay density directly controls rack footprint and cost per terabyte.
• 7.2K RPM, SATA 6Gb/s: the 7,200 RPM spindle speed and 6Gb/s interface balance sequential throughput with the cost efficiency of SATA — appropriate for write-heavy archive and nearline workloads rather than high-IOPS transactional databases.
• Hot-Swap Design: the drive carrier is engineered for tool-free substitution in live ThinkSystem backplanes, eliminating scheduled maintenance windows for individual drive replacements in RAID arrays.
• 512e Sector Emulation: presents 512-byte logical sectors to the OS and firmware while using the larger physical sector format internally — ensures broad compatibility with ThinkSystem RAID controllers and operating systems that predate 4Kn adoption.
• V2 Revision: the V2 designation indicates a current-generation product revision within the ThinkSystem drive lineup, relevant for ensuring parts compatibility when expanding existing arrays.

Integration & Compatibility

This drive is qualified for use in Lenovo ThinkSystem servers that support LFF hot-swap SATA bays. Confirm backplane compatibility and RAID controller support against your specific ThinkSystem server's Hardware Maintenance Manual before ordering. For builds requiring higher spindle counts or NVMe performance, consult the broader Lenovo ThinkSystem storage catalog for the appropriate server storage drives and expansion options. If planning a larger storage architecture, pairing with a compatible NAS or storage enclosure may extend usable capacity beyond direct-attached limits.

Frequently Asked Questions

Q: What servers is the Lenovo 4XB7A93785 compatible with?

A: The 4XB7A93785 is a ThinkSystem-qualified drive designed for Lenovo ThinkSystem servers with LFF (3.5-inch) hot-swap SATA bays. Confirm compatibility with your specific server model and RAID controller using Lenovo's Hardware Maintenance Manual for your chassis before deploying.

Q: Does this drive support hot-swap replacement?

A: Yes. The 4XB7A93785 is designed as a hot-swap unit, meaning it can be removed and replaced in a live, powered server without shutting the system down — provided the drive is part of a redundant RAID array and the server backplane supports hot-swap operation.

Q: What does 512e mean on this drive?

A: 512e (512-byte emulation) means the drive presents 512-byte logical sectors to the host system while using larger physical sectors internally. This maximizes compatibility with RAID controllers and operating systems that do not natively support 4Kn (4096-byte native) sector drives.

Q: Is this a new, factory-original drive?

A: Yes. The 4XB7A93785 is sourced as a factory-new, genuine Lenovo ThinkSystem component — not refurbished, grey-market, or parallel-import stock.

Q: What is the interface speed of this drive?

A: The drive uses the SATA 6Gb/s interface (also referred to as SATA III), which is the standard interface for this class of nearline enterprise hard drive.

Jerry Tildsen

The Lenovo 4XB7A93785 is a straightforward specification buy — 16TB at 7.2K RPM in a 3.5-inch hot-swap carrier is the standard recipe for nearline bulk storage in ThinkSystem deployments, and the 512e sector format is the right call for environments where the RAID controller fleet is mixed-generation and you cannot guarantee 4Kn support across the board.

Technical Highlights:

• 16TB per Bay: at this capacity tier, a single 24-bay LFF shelf holds up to 384TB raw — the per-bay density is directly what determines whether a given chassis can meet a retention target without adding enclosures.
• SATA 6Gb/s Interface: SATA III delivers adequate sequential throughput for surveillance recording and bulk write workloads; it is not the right pick for high-concurrency random I/O (that is SAS or NVMe territory), but for write-heavy archive it keeps cost per terabyte predictable.
• Hot-Swap Carrier: the hot-swap design is only operationally relevant inside a properly configured RAID array — a single unprotected drive is not hot-swappable in any meaningful sense; make sure the array is healthy before pulling a unit.

Deployment Considerations:

• Verify backplane and RAID controller qualification for this specific part number against your ThinkSystem server's compatibility matrix — Lenovo qualifies drives per server model, and installing an unqualified drive in a ThinkSystem may trigger firmware alerts or disable predictive failure monitoring.
• 512e drives require OS and file system alignment; on Linux, confirm partition alignment to 4K physical sectors during provisioning to avoid write-amplification penalties on the physical media — the logical 512-byte presentation does not eliminate the underlying physical sector size.

This drive is best positioned in ThinkSystem-based surveillance NVR builds or archival storage tiers where maximizing raw terabytes per LFF bay is the primary constraint and sequential write throughput takes precedence over random IOPS.