On Wed, 2009-05-27 at 21:47 -0400, dovecot@corwyn.net wrote:
At 04:21 PM 5/27/2009, you wrote:
On Wed, 2009-05-27 at 14:02 -0400, dovecot@corwyn.net wrote: yes, and use NAS not SAN
Why NAS and not SAN?
Because the two technologies differ and it permits you to run non clustering FS's, remember, SAN is block device, so it can only do one single write operation at a time, NAS, as many as you can throw at it, each has its own pros and cons, for mail NAS is perfect, for databases, SAN is better.
you could also use DNS load balancing in a away that has 0 cache TTL on MX addresses, thats better than a software based LB if you cant afford a hardware LB I'm not sure I understand that. The MX records have little to do with
Your correct (too early in the morning when I sent that) but the same applies, if its for redundancy set 0 in DNS record for the hosts so if one fails, retrying has a better chance of getting the alive one, if you are that worried about it, get yourself a hardware solution, there are plenty around and cheap enough these days.