[FX.php List] [OFF] Looking for information about a load-balancing system

[Jonathan Schwartz]

Bob,

So the goal is 100% uptime and to keep the serving business in-house, eh?

I have used a DNS failover service from DNSMadeEasy.com, although 
other firms offer the same service.  Your DNS is managed by the firm 
who polls the availability of the target servers. If one server goes 
offline, it switched to the other.

Two issues: how long does it take to detect the downed server? Their 
web site says 2-4 minutes. That is not 100% uptime. Also, you would 
have to have a server running somewhere else, probably at a colo 
facility. You can still consider it your servers.

Hey, here's an idea...you can run your secondary on my servers and I 
can run my secondary on yours.

Jonathan


At 1:46 PM -0500 6/14/12, Longterm Solutions wrote:
>I have a large client to whom I lease servers; they've expressed 
>concern about what might happen if a catastrophic outage were to 
>occur at my hosting company here--if, for example, the phone lines 
>citywide went down, taking out all Internet connections for the city 
>or the region.
>
>I mentioned a load-balancing system to them, but don't have much 
>knowledge about how they work, the cost involved, etc. My suggestion 
>to them was for us to possibly have a redundant system in a 2nd 
>location somewhere in the US, and use a load-balancing system to 
>roll their site to the second host if any failure should occur. 
>
>If anyone has information about this, I would appreciate hearing 
>about it; there may be others interested on this forum, so replying 
>in the forum might be useful.
>
>Thanks,
>



-- 
Jonathan Schwartz
Exit 445 Group
jonathan at exit445.com
http://www.exit445.com
415-370-5011