Ec2 On-Demand vs Reserved Pricing (graph included)
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Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#2Here's something interesting about the pricing structure: if you get a spot instance, and bid like $5/hr max for it, you won't get overbid for it, and your hourly cost is going to be far less than outright buying the reserve instance itself if you need it longterm.
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#3Here's something interesting about the pricing structure: if you get a spot instance, and bid like $5/hr max for it, you won't get overbid for it, and your hourly cost is going to be far less than outright buying the reserve instance itself if you need it longterm.
We use spot instances a fair bit in this way. It has worked out pretty well so far.
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#4Here's something interesting about the pricing structure: if you get a spot instance, and bid like $5/hr max for it, you won't get overbid for it, and your hourly cost is going to be far less than outright buying the reserve instance itself if you need it longterm.
you won't get overbid for it
... unless the people who bought reserved instances for disaster recovery decide to start using them. If one company's disaster recovery plans kick in, it's quite likely that many other companies' disaster recovery plans will kick in at the same time -- and spot instances will suddenly become very scarce as they are reallocated to the people who paid to reserve them.
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#5This graph is very confusing. On the X-axis are dates, and on the Y-axis are some unspecified numbers, perhaps price.
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#6This graph is very confusing. On the X-axis are dates, and on the Y-axis are some unspecified numbers, perhaps price.
X-axis = dates (Jan 1st - Dec 31st)
Y-axis = price
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#7This graph is very confusing. On the X-axis are dates, and on the Y-axis are some unspecified numbers, perhaps price.
X-axis = dates (Jan 1st - Dec 31st) Y-axis = price
So all the On-Demand instances were free on Jan 10, and have been getting more expensive linearly since then? I doubt it.
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#8Earlier quoted context omitted.
X-axis = dates (Jan 1st - Dec 31st) Y-axis = price
So all the On-Demand instances were free on Jan 10, and have been getting more expensive linearly since then? I doubt it.
If you zoom in to see Jan 10th 2010 you will see the following prices
Re: Ec2 On-Demand vs Reserved Pricing (graph included)
#9Earlier quoted context omitted.
So all the On-Demand instances were free on Jan 10, and have been getting more expensive linearly since then? I doubt it.
If you zoom in to see Jan 10th 2010 you will see the following prices http://twitpic.com/1m6vxi
So x-axis is actually days of usage, not absolute dates