Western Digital RE2

15-10-2007, 06:40 PM #1 (**permalink**)

Looks like the raid versions of the AAKS are coming soon

750GB AYYS http://www.westerndigital.com/en/pro...35&language=en
500GB ABYS http://www.westerndigital.com/en/pro...31&language=en
400GB ABYS http://www.westerndigital.com/en/pro...30&language=en

Superior reliability - Designed and manufactured to server-class standards to provide best-in-class enterprise reliability in high duty cycle environments. With 1.2 million hours MTBF, these drives have the highest available reliability rating on a high-capacity drive.
High capacity - Up to 750 GB of storage packed with server-class features and low cost-per-gigabyte value.
Fast - With a next-generation SATA interface, 3 Gb/s data transfer rate, native command queuing (NCQ), and 16 MB cache, these drives deliver optimum performance.
Low power - Active Power Save™ delivers best-in-class seek mode power consumption through an advanced WD firmware which conserves power in active seek modes without degrading performance.
RAID-specific, time-limited error recovery (TLER) - A feature pioneered by WD, significantly reduces drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.
Rotary Acceleration Feed Forward (RAFF™) - Provides best-in-class vibration tolerance by optimizing operation and performance when the drives are used in vibration-prone, multidrive systems such as rack-mounted servers or network storage.
5-year limited warranty

Q: What is time-limited error recovery and why do I need it?
A: Desktop drives are designed to protect and recover data, at times pausing for as much as a few minutes to make sure that data is recovered. Inside a RAID system, where the RAID controller handles error recovery, the drive needn't pause for extended periods to recover data. In fact, heroic error recovery attempts can cause a RAID system to drop a drive out of the array. WD RE2 is engineered to prevent hard drive error recovery fallout by limiting the drive's error recovery time. With error recovery factory set to seven seconds, the drive has time to attempt a recovery, allow the RAID controller to log the error, and still stay online.

15-10-2007, 06:47 PM #2 (**permalink**)

Pity they did'nt release these items with 32Mb cache. But then again, they are probably used with Hardware based Raid controllers that have a lot of onboard ram.

15-10-2007, 07:02 PM #3 (**permalink**)

Yeah probably more suited for hardware based raid controllers hence less cache. But wonder if TLER feature only useful for hardware raid controller as opposed to onboard motherboard raid ?

15-10-2007, 08:54 PM #4 (**permalink**)

We apparently had one of the 750GB RAID editions in the labs at work two weeks ago and I had no idea - the PCA boys thought I knew *sigh*

Should get it back in at work in about 2 weeks when things aren't so hectic which is good because from a quick spec look and knowing what the WDs have been doing lately, I'm confident that the drive should be well performing, decently priced and at a decent sound level. Fingers crossed at least

15-10-2007, 09:30 PM #5 (**permalink**)

Yeah seems decently priced i.e 500GB AAKS ~AUD$155 3yr warranty vs 500GB ABYS 5yr warranty ~AUD$260 - price rise directly proportional to increase in warranty from 3yrs to 5yrs

18-10-2007, 06:19 PM #6 (**permalink**)

huh... no 1TB ones?