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If you spike your bandwidth over your 95% for over a day or so of time, you'll be paying and overage.
I'd seriously look into HD's overage costs for your 95%.
If it's really high, I'd recommend possibly even capping your box
Francisco
I usually contract bandwidth for cd lan (the company that colocate us and I'm cto at) with 95th percentile as is a standard among tier1 /tier2 carrier we talk with. then you do your network enginering magics to keep your traffic under control...
For servers and leased lines, 95th or some percentile billing is standard, welcome to the real internet
Now for your questions:
You used it, you wanted to burst to those higher speeds, they needed to have the capacity available, now you get to pay a very discounted rate for the level you commit, but it you do use it, they ask you pay for it.
The big drawback in my mind is you get bent over bad if you receive a DDoS and have no way to null that before it hits your interface.
Now it is not uncommon to find traffic billing as an option in many colo facilities today, and after what, 6-9 months in Los Angeles at QuadraNet it has turned out I saved quite a bit of money having selected that method over 95th billing. It really depends on how your servers use their connectivity which is going to benefit you more, and I don't think you can walk in blind and make the best choice, you will be making as informed a choice as flipping a coin without any history.
@Asim: could you by any chance PM me the link to the awesome offer for HostDime which you mentioned on your blog?
I raised the concern with my DC and they say they will wait until its end of the month and no overages will be posted for a spike for 1 day or 2.
How do you do that?
At HostDime, they have just one bandwidth measurement option.
But I noticed that munin, cacti and other graphing tools that we so commonly use also has 95th percentile in their DNA. So I am going to stick with HostDime for now, until I have better option available elsewhere
Can't do that. It was a custom offer but still I will PM
Is it just you on this node? If so then I guess you can control/monitor your usage and keep safe. If you're selling this to people, though, if they spike it for a few days and push it over, you could be stuck with a very heavy bill.
I bet the overages at hostdime are $15/mbit - $20/mbit.
Francisco
Well these are shared hosting nodes with cPanel and last time when I was at iweb.com they never crossed 500G of bandwidth in a month (although I was allocated 10TB).
Now at HostDime, I have 10TB but calculated in 95th percentile and I am sure I will never overage BUT still, wanted to get a general idea of is it good/bad etc
@Francisco how is your DC charging you for the bandwidth? 95th percentile or the conventional way
95%.
We used to have a small commit at just 200mbit @ 95% but we had some abusive user pound out a hefty flood and we got stuck with a few thousand dollar bill. Since I really didn't want to eat it, I worked out a deal with egi and now just purchase full port speeds at a time.
We don't need full ports, but it protects us from getting suddenly stuck with a bill.
Francisco
10TB of bandwidth is not the same as 10TB but calculated 95th percentile; in fact there's no such thing as 10TB @ 95 percentile.
10TB = an amount (close to your average mbps)
N mbps @ 95th percentile = a rate
You can approximately convert the two, but it's still not the same; as others have said the spikes will make the difference.
Let's say you do an average traffic of 20mbps but your 95th percentile is 30mbps; you probably did about 20x300=6000GB bandwidth, but you are paying for 30mbps.
When I saw this title I instantly thought "HostDime!"
It's a rip off. No other major dedicated server hosting provider bills this way.
Its honestly not fair for them to sell limited (e.g. 2TB per month) bandwidth and still use 95th percentile billing. If you get a dos/ddos attack near the end of the month that's going to increase your bill significantly. You don't get to actually utilize your full bandwidth advertised 99% of the time.
Munin does not have 95th functions built in, you have to put them in yourself. Found this on google while searching for munin 95th and thought I would mention that.
@Corey its an old thread from Feb 2012. At that time Munin had 95th percentile out-of-box, probably it does not have it now.
Used to be the only way to have a dedicated ... and then the typical dedicated servers had only 3TB traffic up and down (internal traffic wasn't counted if connected together).
The $7/mon KVM today has as much bandwidth as a 2003 full fledged dedicated had, and without all the hassles.
I'm on #munin in freenode and they said it had never had it. I've read some threads on their mailing list and up to 7 years ago it was not in there still so I'm not sure how you think it had 95th
Digging up a two-year old thread to tell someone they were wrong two years ago is awesome.
Someone has too much time to kill.
Or not enough tickets to answer?
No that wasn't the point - thanks though. The point was to let everyone, that searches this same problem in the future, know the correct answer so they aren't confused like I was.
If that wasn't the point, what was your second post all about? You've made special effort to point out the wrongness.
I think I already said that -
Nothing like an ex-moderator hijacking a post about 95th percentile billing. /jeez
What does me being an ex-mod have to do with anything?
Moderators and ex moderators are usually held to a higher standard to set an example for the rest of the community.
Not me, I only took the job on the understanding I would never be held to anything other than the lowest acceptable standard, and anyone with half a brain would know not to follow my example.
Munin was not my question. My question was related to a host in general and "95th percentile pros/cons"
Wondershaper is wonderful. If that's too scary, use tc.
7 years ago dedicated and colo servers were billed 95% percentile, so if they had a dedicated box or coloed it, they were on it.
Bandwidth was expensive, even cheap-packet-dropping Cogent. So bandwidth expensive internal traffic sometimes was billed as outbound traffic if 2 dedicated servers (like a database and frontend) weren't physically linked at the datacenter.
Right, and in colo bandwidth is still billed at 95th percentile at a lot of places.