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Datacenter Hard Drives

WD Gold WD Re WD Se WD Ae
WD Gold hard drives employ advanced technology to deliver among the best in reliability, capacity, power efficiency and performance Performance-optimized high-capacity storage for high-intensity applications. High-performance, high-capacity storage for mid-intensity applications. The maximum capacity energy-efficient cold storage HDD.
Designed For Enterprise servers, datacenter environments, enterprise storage systems, data warehousing/mining, enterprise NAS, and high end surveillance systems. Datacenter storage, high-end NAS/SAN and Surveillance, and performance-oriented high capacity storage. Bulk cloud storage, replicated environments, content delivery networks (CDNs), entry level servers, and backup. Datacenter archive storage, cold storage servers, tape library disk layer, tape library and VTL replacement.
Capacity 4 TB - 8 TB 250 GB - 4 TB 1 TB - 4 TB 6 TB
Interface SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
MTBF Up to 2.5 M hours Up to 2 M hours 800 K - 1 M hours 500 K hours
Workload 550 TB per year 550 TB per year 180 TB per year 60 TB per year
Format 512n / 512e 512n 512e Advanced Format (AF)
Cache 128 MB 64 MB 64 MB 64 MB
Form Factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Limited Warranty 5-year 5-year 5-year 3-year