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I am trying to estimate the monthly cost to access data stored in AWS S3 buckets when copying files(objects) from S3 bucket to my local machine using FileZilla Pro.

Based on logging information provided by FileZilla Pro, I believe there to be an HTTP request for each file(object) and some charge based on amount of data for what AWS calls "Data Transfer OUT From Amazon S3 To Internet" (https://aws.amazon.com/s3/pricing/#Data ... er_pricing_).

Besides the costs for the HTTP requests and data transfer pricing, are there any additional costs that I should be considering when trying to estimate monthly costs to copy data from S3 bucket to my local machine(s) ?

Data storage pricing.

Thanks for the reply @botg

I was looking specifically for costs associated with the copying of data from AWS S3 to local machine(s). Apologies if my question(s) were unclear. I have edited original post.

Cheers

Assuming a stable connection:

For downloads it's requests to enumerate objects per common shared slash-delimited prefix and one GET per object enumerated.

Uploads are more complicated: Directories are also enumerated.
- Files less than 5 MB are uploaded in a single request
- Files larger than 5 MB are uploaded in multiple parts in order to allow resume on unstable connections. Part size is dynamic, with each part about 30 seconds in size, but no less than 5MB. Apart from one request per part, there's also enumerating existing multi-part uploads, initiating new multi-part uploads and finishing a multi-part upload.



Each enumeration can be multiple requests if the server decides to truncate the answer, if I remember correctly Amazon's S3 doesn't return more than 10000 items in reply.

I just got Filezilla pro 3.42.0.2 and need it to upload multipart to my s3 storage service. I noticed if I upload a file larger than 5mb it fails as filezilla pro tries to http put with a partnumber of 1 and content length larger than 5mb which gets after the upload a response of http 400 bad request. How can I setup filezilla to do multipart uploads when using s3 protocol ? I really need it to upload large file like 6gb. Thank you.

Please use the dedicated customer forum of FileZilla Pro. Details you'll find in the sticky at the top.