Western Digital WD1003FBYZ 1TB RE SATA 7.2K 3.5-inch Datacenter HDD (Lot of 8): This is a lot of 8 Western Digital RE-series 1 TB enterprise hard drives. The WD RE family is a 24x7 datacenter-class line, distinct from desktop Caviar Blue/Green and from Western Digital's high-capacity Gold series. Each drive is a 7200 RPM 3.5-inch SATA 6 Gb/s spinning HDD with a 64 MB cache. These are refurbished drives.
Engineering Context
The RE designation indicates 24x7 duty-cycle qualification, vibration tolerance for multi-bay chassis, and a higher rated MTBF than consumer drives. The 6 Gb/s SATA interface caps theoretical throughput at 600 MB/s, while a single 7200 RPM spindle typically delivers around 150–170 MB/s sustained sequential. With 64 MB of onboard cache, write coalescing helps small-block workloads, but spinning media is not a substitute for SSD in random-IO-intensive paths. Rotational latency at 7200 RPM is approximately 4.16 ms.
Deployment & Use Cases
Bulk and nearline storage tiers for backup repositories, media archives, surveillance recording, and Veeam/Commvault landing zones. Capacity HDDs in software-defined storage clusters such as Ceph, ZFS, and Storage Spaces Direct cold tiers. Replacement spares for existing 1 TB SATA arrays in 3.5-inch enterprise chassis.
Technical Specifications
- OEM: Western Digital
- Part Number: WD1003FBYZ
- Series: WD RE (Datacenter / RAID Edition)
- Capacity: 1 TB
- Form Factor: 3.5-inch LFF
- Interface: SATA 6 Gb/s (SATA III)
- Spindle Speed: 7200 RPM
- Cache: 64 MB
- Duty Cycle: 24x7 enterprise
- Lot Quantity: 8 drives
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with any standard SATA 6 Gb/s HBA or RAID controller in a 3.5-inch drive bay. Not a SAS drive — it will not negotiate on SAS-only backplanes that lack SATA tunneling support; verify the storage backplane supports SATA. Not a 2.5-inch SFF drive. Not an SED (self-encrypting) drive in this base SKU. Drives are bare; trays/caddies are not included unless explicitly noted.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS performs SMART, sector scan, and short self-test on every drive before shipment. We offer global shipping, technical consultation on enterprise HDD selection, and comprehensive warranty. Browse our storage catalog for matching HDDs and SSDs. Handling time is 1–3 business days.

