Backup to S3 fails

When trying to backup a virtual server which is quite large the backup fails when uploading to S3 (last stage of backup). I am unsure exactly what size causes the failure (the virtual server in my case is 13GB), but I am guessing that the 5GB single part limit is reached?

If I do a backup to a local directory, and use s3cmd to upload the files to S3 then the process is successful.

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Are you running Virtualmin 3.94? Older versions didn't support large file backups to S3, as they required a different protocol - but this has been fixed in recent releases.

Recently (few weeks ago) I'm keep getting next error:

15 servers backed up successfully, 0 had errors.

Deleting backups from databases/class1-%d%m%Y in Amazon S3 bucket intechhosting older than 30 days .. .. failed to list S3 files : Failed to list S3 files : The request signature we calculated does not match the signature you provided. Check your key and signing method.

If key is wrong how it could perform 15server backup, I checked credential and even request a new ones from Amazon...bit still without success? For the first two months I have no problem with the same keys and backup. I'm using 3.98 GPL Virtualmin.

Thank you.

Virtualmin 3.99 will fix that "Failed to list S3 files" bug - it happens if you have a bucket with more than 1000 files in it, in a non-US location.

Ok, thank you.:)