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Re: RAID Suggestion for webserver

On Mon, 11 Feb 2002 06:34, Jason Lim wrote:
> Okay... for those of you following the previous RAID discussion... I
> bought the 3ware cards.
> Each server has 4 40G hard disks (identical). What RAID level/config do
> you suggest?
> Main usage is web/database/mail server (the usual hosting setup). Disk
> performance isn't THAT important, but reliability is.

Why not go the whole hog and put all the drives in a RAID-1 and have 4 copies 
of all your data?

For a mail server, database server, or other machine where you can only have 
one copy of the data you want to be really paranoid about the drives.

For a web server I suggest having two servers.  Use RAID-1 for simple 
mirroring of the data (if only to save yourself the effort of reinstalling a 
server after a minor hard drive error).  For anything serious have load 
balancing at the switch or have a manual take-over proceedure to make the 
other machine get both IP addresses.  Having a redundant server saves you 
from memory errors, CPU over-heating, and other hardware problems (which are 
probably more likely than having two hard drives die at the same time).

http://www.coker.com.au/bonnie++/     Bonnie++ hard drive benchmark
http://www.coker.com.au/postal/       Postal SMTP/POP benchmark
http://www.coker.com.au/projects.html Projects I am working on
http://www.coker.com.au/~russell/     My home page

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