4TB Western Digital Enterprise Class SAS Hard Drive
Western Digital 4TB Enterprise drive takes the RE family to the 4TB capacity limit. The new drive offers a SATA 6Gbps interface with RAID-specific, time-limited error recovery (TLER), dual actuator technology, enterprise build quailty to name a few of the features that make the Western Digital RE’s ideal for Enterprise users looking for the fine balance between performance and capacity.
With 4TB capacity, these drives are ideal for bulk storage duties, such as JBODs, compute servers, video surveillance and other demanding write-intensive applications. With Western Digital’s stated field-tested 1.2 million hour MTBF, the drive is expected to deliver the highest level of reliability for 24×7 operations. To build upon the reliability, Western Digital puts the drives through extended burn in testing with thermal cycling to ensure reliable operation. This reliability is what allows Enterprise have confidence and security that their operations won’t be effected by data failures or drive failures that could cripple an operation.
Western Digital offers three Enterprise class drives to their consumers, RE – SATA 6Gbps & 3Gbps, RE – SAS 6Gbps and Xe – SAS 6Gbps. Both the RE classes are a 3.5″ form-factor and range from 250GB to 4TB capacities. The Xe class, which is an Ultra-fast SAS drive, comes in 300GB to 900GB capacities. The Western Digital RE 4TB stands at top of Enterprise class capacities for Western Digital.
The Western Digital hard drives have little difference in appearance from their consumer counterparts, except the nice bright yellow label stating “Enterprise Storage.” It is a nice touch just in case you have a bunch of drives in your spare parts box, as it would be difficult at first glance to tell what is Enterprise or what is a Consumer Western Digital Drive.
The Western Digital RE 4TB is a standard 3.5″ hard drive based on a SATA 6Gbps interface. We see the standard practice of Western Digital to place the heat-producing components in contact with the body of the drive. This allows things like the controller, RAM, and motor driver to dispense heat into the body acting as a large heat sink. Also, Western Digital makes use of a foam pad placed in between the drive and circuit board to help absorb vibration.