Very reliable and probably the fastest HDD on the market ...
Tien H. Cheng "radthc", Amazon
25 December 2014
Summary: Very reliable and probably the fastest HDD on the market. The mean time between failure is >150 years, keeping the computer turned on 24/365, according to the manufacturer. I use this drive as C: drive and keep the original drive as the F: drive. I have cloned my C: drive into F: drive, using the Adonis application, downloaded free from WD once every month for over 10 years.
Summary: Running two of these in Raid 0 for storing all my games that don't fit on my SSD's. Performance is superb, operation wise, they are way way quieter than the original Raptors. For the storage space you get, the reliability, and rock solid performance, you cannot go wrong! Sadly however I do foresee in the next few years HDD's will pretty much be phasing out. With SSD's already coming way down in price per Gigabyte, it will be just a matter of time. Long live the raptor!
Summary: Owned this for a little short of a year now. Has been reliable as far as performance and data surface integrity goes. Upgrading from a consumer grade 7200 RPM drive, this was noticeably faster. I also did some read/write burn in testing with dd, writing from /dev/zero to an encrypted file (a faster way to make "random data") and then reading that file back into /dev/null.
Summary: Bought two in March. By June I was seeing high disk utilization and occasional OS freezing. SMART showed OK. Eventually - July - ran WD Data Lifeguard in DOS mode. It passed quick test - but very quickly failed extended test with "Too Many Errors Found Contact Tech Support Status 0225".
Summary: These hard drives are fast and they do work flawlessly for years under heavy use. My last Velociraptor was guarantied for 5 years and it lasted me 6 1/2 years. When it finally started to show sign of failure, I only wanted to replace it with another Velociraptor of course. The new ones are a lot more quiet now, very fast and a new well made design. Love it. Very reliable. Recommend 100%.
Summary: I like these drives in RAID-1 for server builds where SSDs are not appropriate. They are extremely fast, not too loud and rock solid. They will definitely destroy 7200RPM drives for performance.