Western Digital Ultrastar DC HC570 22TB 3.5-inch SATA Enterprise HDD

The Western Digital Ultrastar DC 22TB 3.5-inch SATA Enterprise HDD provides high-capacity storage for servers and data-centre systems. Its 22TB capacity makes individual drive capacity a central consideration when planning a storage installation. This is an internal hard disk intended for enterprise workloads rather than a self-contained external storage device. The specified workload rate limit is 550TB per year. That annual workload rating is a separate specification from capacity and should be considered alongside the amount of data the system will store.

A SATA 6Gb/s interface provides the connection to the host system. That figure describes the interface rate, not a sustained read or write speed. The 3.5-inch form factor determines the type of drive bay required for installation. A suitable server configuration therefore needs both space for this drive format and a compatible SATA connection. These physical and connection requirements are relevant when selecting the drive for an existing system or planning a new storage build.

• 7200 RPM spindle speed: specifies the rotational speed of the hard disk.
• 24/7 operation: designed for continuous use.
• 2,500,000-hour rated MTBF: a reliability metric, not a guaranteed individual drive lifespan.
• S.M.A.R.T. support: enables drive-health monitoring.
• Rotational-vibration sensors: supported for vibration sensing in enterprise installations.