swap on RAID (was Re: swp - Re: ext3 journal on software raid)

On Wed, Jan 05, 2005 at 09:04:00PM -0800, Alvin Oga wrote:

On Wed, 5 Jan 2005, Mike Hardy wrote:

quoted

There are those that think if they size the machine correctly, they 
shouldn't need swap, and they're right.

bingo

Yet in an earlier reply you state that your machines have swap
configured.

There is a difference between these two statements:

        a) I need some amount of swap configured but don't expect a
        significant swap usage under normal load.

        b) I expect my server to always be using a significant
        amount of swap.

I interpret your views as (a) but I interpret Mike's as "there are
people who are saying that a correctly sized machine can have zero
swap configured."

Having no swap configured and merely using no swap in normal
circumstances are very very different situations.