[ec2] 9.04

[Jeremy Edberg]

I'm running a mix of reserved and non-reserved instances.  Basically,
Amazon works to your advantage as best it can.  It will simply bill
you the lower rate for as many instances as you have reserved of that
type, and the rest get billed at the higher rate.

Even better, if you purchase a reserved instance, and you are already
running one of that type, they will just switch the billing to the
lower rate.

So as James said, it is only a billing construct.  As long as you are
running an instance of the type you reserved, you will be billed at
the lower rate, until you run out of reservations.

In your particular case, I would start with 8.10, and then switch to
9.04 whenever it comes out.

Jeremy


On Thu, Jul 2, 2009 at 12:58, Micah Walter<micahwalter at me.com> wrote:
> oh... this changes everything :)
>
> -m
>
>
> On Jul 2, 2009, at 3:57 PM, James Tatum wrote:
>
>> No, that's incorrect. Launch and terminate all you want. If you
>> reserve two instances, and run an average of three, your average bill
>> will be for the cost of two reserved instances and one on-demand
>> instance. There's no designator for whether an instance is reserved or
>> not.
>>
>> Instances (reserved or otherwise) are built for failure. Termination
>> is an expected (if not normal) event.
>>
>> You can't pick which instance is reserved and which isn't. It just
>> shows up on your bill.
>>
>> On Thu, Jul 2, 2009 at 3:53 PM, Micah Walter<micahwalter at me.com>
>> wrote:
>>> Right, but I was under the impression that once I launched my
>>> reserved
>>> instance, I would be locked into whatever AMI I had chosen. So, for
>>> example... If today I reserved an instance and launched it using
>>> 8.10, and
>>> then a month later 9.04 came out, I wouldn't be able to launch a
>>> new 9.04
>>> instance and switch over without paying the reservation fee
>>> again... does
>>> that make sense? Once it's launched, I can't terminate it early
>>> without
>>> forfeiting the lower hourly rate...
>>>
>>> @ David - As I was writing this I saw your email, so I will add
>>> what I think
>>> is correct... If you reserve an instance you are charged the up
>>> front fee
>>> right away. Once that payment has been approved you can launch your
>>> reserved
>>> instance at anytime using the command line tool or the AWS Console.
>>> But you
>>> only get the 3 cents fee for that initial instance...
>>>
>>> -m
>>>
>>>
>>> On Jul 2, 2009, at 3:45 PM, James Tatum wrote:
>>>
>>>> A reserved instance is a billing construct. It's not tied to a
>>>> specific AMI. In effect, you're notifying Amazon of your intent to
>>>> use
>>>> that bandwidth so they can plan their infrastructure and they're
>>>> giving you a reduced rate for your troubles.
>>>>
>>>> On Thu, Jul 2, 2009 at 3:37 PM, Micah Walter<micahwalter at me.com>
>>>> wrote:
>>>>>
>>>>> I know this has been brought up more than a few times on this list
>>>>> before.... but I am about to launch a couple of reserved instances,
>>>>> and I am wondering if it would be beneficial for me to wait for
>>>>> 9.04,
>>>>> or if it is still a ways out...
>>>>>
>>>>> If you were in my shoes, and wanted to launch two reserved
>>>>> instances
>>>>> sometime this month... would you wait? Or would you be more
>>>>> inclined
>>>>> to use 8.10, or some other AMI? Any opinions on this?
>>>>>
>>>>> -micah
>>>>>
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>>>>
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>
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