DANGER!!! Problems with 10.04 installer (RAID devices *will* get corrupted)

[Hakan Koseoglu]

Karl,
On Fri, Apr 23, 2010 at 12:38 AM, Karl Larsen <klarsen1 at gmail.com> wrote:
>         Well my spelling is not the best. But RAID is not something for
> an average user to play with. Far better you use one hard drive and back
> up often.
RAID is a very mature and common way of having redundancy and any
average user should and would have used it if it wasn't the cost of
the disks (RAID1 gives you half the total amount of available disk
space with two disks and RAID10 gives you the quarter of the total
amount available disk space with 4 disks and RAID 5 starts with
two-thirds of the available space from a minimum of three disks. All
of these are supported on Linux with software RAID for a long time and
they're pretty mature and commonly used solutions.

On the other hand, nothing beats a real hardware solution for
performance. A Dell MD3000 fully populated with 1TB disks is a nice
beast and can be carved up very nicely into various RAID setups and
it's performance is really good but it will cost you $11,938.00 before
shipping. I don't think you can afford that and neither does any
retular home user.

A RAID1 setup with two disks is usually a bearable cost by users and
some go for it. It all depends on how valuable is your data and
downtime since RAID is all about Redundancy.

Finally, RAID is not backup. A file system corruption will destroy
your data merrily, whatever RAID level you have chosen. You must do
backups if you value your data, RAID or not.

-- 
Hakan (m1fcj) - http://www.hititgunesi.org