<html>
<body>
From Slashdot<br><br>
<i>Lally Singh recommends a ZDNet piece predicting the imminent demise of
RAID 5, noting that increasing storage and non-decreasing probability of
disk failure will collide in a year or so. This reader adds,
"Apparently, RAID 6 isn't far behind. I'll keep the ZFS plug short.
Go ZFS. There, that was it."<br><br>
</i><a href="http://blogs.zdnet.com/storage/?p=162" eudora="autourl">
http://blogs.zdnet.com/storage/?p=162</a> <br><br>
-- Mache<br><br>
"Disk drive capacities double every 18-24 months. We have 1 TB
drives now, and in 2009 we'll have 2 TB drives. With a 7-drive RAID 5
disk failure, you'll have 6 remaining 2 TB drives. As the RAID controller
is busily reading through those 6 disks to reconstruct the data from the
failed drive, it is almost certain it will see an [unrecoverable read
error]. So the read fails ... The message 'we can't read this RAID
volume' travels up the chain of command until an error message is
presented on the screen. 12 TB of your carefully protected — you thought!
— data is gone. Oh, you didn't back it up to tape? Bummer!"</body>
</html>