On Mar 10 2016, Cliff Stanford <[email protected]> wrote:
> On 10/03/16 00:39, Nikolaus Rath wrote:
>> On Mar 09 2016, Cliff Stanford <[email protected]> wrote:
>>> Just one thing, I'm not sure it's sensible to push the metadata to
>>> "infrequent access" as it is accessed rather frequently.  Maybe just
>>> the actual data?
>>
>> Would be a nice theoretically, but I think the benefits don't justify
>> the added complexity. It's not as if the IA class is slower, it just has
>> smaller availability guarantees. And finally, metadata is only accessed
>> on mount, umount and every 24h. So depending on your usage pattern, this
>> may be a lot less frequent than file contents.
>
> As I understand it, it's simply a different pricing model,
> availability is the same.

Not according to https://aws.amazon.com/s3/storage-classes/. Standard is
99.99%, IA is 99.9%.

> IA costs 50% less to store and twice as
> much to retrieve.
>
> One problem is that IA objects have a minimum storage duration of 30
> days.
> Thus each of the metadata objects that is removed is charged at
> 30 days.  There is also a minimum storage size of 128kB.

.. but all that is indeed true as well.


> Not sure if you think any of this is worth worrying about?

Well, as I said, that depends on how you use S3QL.


Best,
-Nikolaus

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