Date: Tue, 22 Apr 1997 22:46:57 -0500 From: "Jeffrey J. Mountin" <sysop@mixcom.com> To: Blaz Zupan <blaz.zupan@medinet.si> Cc: shovey@buffnet.net (Steve), freebsd-isp@freebsd.org Subject: Re: Mail distribution Message-ID: <3.0.32.19970422224655.00c32810@mixcom.com>
next in thread | raw e-mail | index | archive | help
At 04:57 PM 4/22/97 +0200, Blaz Zupan wrote: >> > POP3 on this new machine? I simply can't believe that >> > all providers have only one POP3 server. >> Why cant you? > >How about "single point of failure"? Do you really want me to >believe that f.e. AOL has one single POP3 server for all their >thousands (millions?) of mailboxes? But do they have all the same data? Do at least 2 servers have the same data, not necessarily all of it, but there is at least one redundant server for each account? >> I cant think of how you could keep multiple copies of inboxes in sync. > >Yeah, that's the problem I'm trying to solve :) The most important part is the messages, correct? Then every time there is a write to the mail spool, one should to a backup. This is not reasonable. Downtime is not a problem with secondary MX handles that can queue mail, so the problem is to have a backup, but the data is too dynamic. A RAID array would be the best solution, preferably level 5, but level 1 gives you 2 mirrored drives and level 4 could be used, but is not as efficient. Of couse in the case of a RAID array, "What if the controller shorts out the drives and you cannot recover?" This is just a "what if" that could go on. "What if you keep your backup tapes off site, but the building goes up in smoke?" You are going to have a bad day/week, but at least you still had a very good solution to the problem and hopefully good business insurance. ;-) ------------------------------------------- Jeff Mountin - System/Network Administrator jeff@mixcom.net MIX Communications Serving the Internet since 1990
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3.0.32.19970422224655.00c32810>