Re: Solid State Hard Drives
> > 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), [...]
> On Fri, 09 Oct 2009, Joerg Backschues wrote:
> > 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.
On 10.10.09 19:15, Henrique de Moraes Holschuh wrote:
> 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...
Yes - since you reply OK code to the DATA phase, you take responsibility for
the email and its delivery. Since then, the loss of e-mail is clearly in
And note that the option to hold reply to DATA command can lead to multiple
deliveries and other delivery issues.
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