Farkas Levente wrote:
> what happends if the 3ware card get wrong? do you always have a backup
> raid controller (with the same type)? with software raid you can plug it
> to any kind of controller and save your data!
Can't answer for Bryan, but:
How often you get raid controller card go wrong (or any other PCI card
for that matter)? Sure, if you are careless when handling it and static
electricity that accumulated in your body fries it. Those installed in
production servers, very darn close to never.
Even with that, if you keep a number of servers running, you usually
standardize on the cards you use (for example, you go with 3ware and
stick with them, or you go with Adaptec and stick with them). Having a
spare card or two in a drawer is a good idea anyhow, if you unexpectedly
need to build the server overnight. And usually, you don't need to have
exact same model of the card. In most cases, cards produced by one
manufacturer can read RAID metadata information written by different
card models (of the same manufacturer). So you can access your data as
long as the replacement card has enough ports to connect all disks from
failed card.
