Date: Tue, 22 Jun 2004 01:04:39 -0600 From: "Chad Leigh -- Shire.Net LLC" <chad@shire.net> To: Bill Moran <wmoran@potentialtech.com> Cc: FreeBSD-questions <questions@freebsd.org> Subject: Re: What's the best possible email failover solution Message-ID: <6D90314C-C41A-11D8-AB72-003065A70D30@shire.net> In-Reply-To: <7B04A918-C419-11D8-AB72-003065A70D30@shire.net> References: <20040621132006.2b1a296f.wmoran@potentialtech.com> <a22ff294040621115173bad2e0@mail.gmail.com> <20040621172520.3544d6fe.wmoran@potentialtech.com> <7B04A918-C419-11D8-AB72-003065A70D30@shire.net>
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On Jun 22, 2004, at 12:57 AM, Chad Leigh -- Shire.Net LLC wrote: > > On Jun 21, 2004, at 3:25 PM, Bill Moran wrote: > >> >>> You'd be much better off with some sort of NAS in a raid >>> config, even if it were home grown, to store the spools. >> >> We already have a "home-grown NAS" (just a FreeBSD box with Vinum >> RAID) but >> it doesn't protect me if the machine with the drives has a power >> supply or a >> mobo or a CPU go south. I don't know if a NAS is any more reliable >> than a >> PC, but it's still a single point of failure. > > Yes, but your scenario of losing all the mail before the backup if > something goes poof is covered. In other words, if a CPU or a MB goes > poof, you do not lose your mail stores. Your RAID disk protects you > against that. Your mail may not be accessible while you replace a MB > or CPU or PS (get redundant PS), but you do not lose it, which is the > failure you wanted to protect against. And keep an extra MB, CPU, PS, etc around so you can swap them out if necessary without lots of downtime... Chad
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