It is an awful feeling to lose your data without having first backed it up. Rather than find that out the hard way, implement a backup scheme now and thank us later. One way to get started is by picking up a WD Red 6TB NAS HDD on sale at Newegg, where it's marked down to $200 today.
The WD Red line is specifically intended for NAS appliances with one to eight drive bays, though it will not hurt things to run one (or more) in a standard desktop. Either way, you're getting an HDD with a 5,400 RPM spindle speed, 64MB cache, and a SATA 6Gbps interface. WD says it can transfer data at up to 175MB/s.
If you do stick this drive in a NAS box, you'll also benefit from lower power consumption, which helps the drive stay cooler in a 24x7 operating environment. On top of that, WD says these drives are equipped with error recovery controls specific to RAID setups to help reduce failures within a NAS system.
As to overall reliability, cloud storage provider Backblaze noted a 2.86 percent failure rate out of the 443 6TB WD Red models it had employed in the first quarter of 2017.
Go here (opens in new tab) to get this drive on sale.
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