On Aug 24, 2009, at 11:10 AM, Ron Mexico wrote:
I'm putting together a 48 bay NAS for my company [24 drives to
start]. My manager has already ordered 24 2TB [b]WD Caviar Green[/b]
consumer drives - should we send these back and order the 2TB [b]WD
RE4-GP[/b] enterprise drives instead?
I would.
I'm tempted to try these out. First off, they're about $100 less per
drive. Second, my experience with so called "consumer" drives in a
raid controller has been pretty good - only 2 drive failures in five
years with an Apple X-Raid.
Thoughts? Opinions? Flames? All input is appreciated. Thanks.
The enterprise class drives offer better vibration compensation which
will
be needed in a 48-drive bay.
From a RAS perspective, the enterprise class drives have what WD calls
"RAID-specific time-limited error recovery" which will be needed if you
have a high availability requirement.
I realize it is not easy to make a $ trade-off for some of these
seemingly
intangible features. It is becoming more difficult as vendors implement
features such as "IntelliPower" which makes performance predictions
difficult. But beware that the larger, 2 TB drives are tending to be
slower.
-- richard
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