raymor |
05-18-2011 03:50 PM |
Quote:
Originally Posted by eurabia
(Post 18147312)
Quality post. Yea, I do want HA but I also don't want it to cost $3000/month. I know there are setups that if hardware on 1 server fails, then another one starts serving the site within 1-2 mins. That'd be cool. Any suggestions for that? My budget is $100-$1000/month.
Also, I'm mostly concerned about hardware failures. Network uptime are extremely strong almost everywhere because datacenters got that shit on lock. As far as software, I also understand that a good admin can get that shit onlock too. The hardware failures are the fucking pain in the ass. Hosts brag that "we guarantee 1 hour hardware replacements, isnt that awesome". No FUCK YOU, that's fucking horrible, that means my site will be down for up to 1 hour!
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On the "1 hour hardware replacements", if a drive fails it may take several more hours to
copy the data or restore from back up, so you'll want at least RAID 1,5, or 10 (not RAID 0).
Also if you're having a LOT of hardware problems, be aware that with SOME web hosts,
every problem is reported as a "hardware problem".
Basically, there are two ways to go with this. Live local fail over and remote backup fail over. Each has advantages and disadvantages. It sounds like you may want both - local for
nearly instant fail over and remote for when someone says "oops".
local failover
protects ONLY from actual hardware failure - not mistakes, not hackers, not DC issues, etc.
1-5 minute switchover
cost roughly double the normal single server cost + $750 set up and extra hardware
remote backup failover
protects from everything - such as the Planet fire which took out 9,000 servers, the FBI raids where they've confiscated entire data centers due to one customer, etc., mistakes, hackers, etc.
cost is $24 / month
switch over roughly 10-20 minutes
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