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Re: Solid State Hard Drives

On Fri, 09 Oct 2009, Joerg Backschues wrote:
> Craig Sanders write:
> > rather than a flash SSD, you're probably better off putting the mail
> > queue drive on a RAM disk...not a software RAM disk (unless you're
> > a gambler), [...]
> Software RAM disks are no problem for us. We are using a special version
> of qmail that uses two queues:
> The 1st queue only holds mails that can be delivered at the frist time.
> This queue resides on the software RAM disk. All other mails will be
> automatically moved to the 2nd queue that resides on a standard disk.
> This is a compromise between safety and performance.

And a gross violation of every SMTP/ESMTP RFC that ever existed, unless
you DO hold the SMTP/ESMTP transaction open without returning a 2xx
reply to the DATA command until it is either delivered or moved to the
2nd queue...

  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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