Variuos programs won't respond after resuming from S3 sleep. IE8 may not respond, or the recycle bin won't empty. More programs become effected over time after the resume until virtually nothing works. The PC then requires a reboot, but won't respond from the windows commands to restart or shutdown. If I try to reboot as soon as the PC begins to act up, it stays in "logging off" eternally.
Tweak Your Windows PC's Sleep Mode
Introducing Amazon S3 Multipart Upload
Sleep mode or suspend to RAM is a low power mode for electronic devices such as computers, televisions, and remote controlled devices. These modes save significantly on electrical consumption compared to leaving a device fully on and, upon resume, allow the user to avoid having to reissue instructions or to wait for a machine to reboot. Many devices signify this power mode with a pulsed or red colored LED power light. In computers, entering a sleep state is roughly equivalent to "pausing" the state of the machine. When restored, the operation continues from the same point, having the same applications and files open.
What is s3 sleep state?
With S3 protocol, transfer can be resumed only immediately by reconnecting a lost session, not later. WinSCP is able to store file being transferred to temporary filename first, renaming it to the target name only once the transfer successfully finishes. For performance reasons transfer to temporary file name is enabled by default for files larger than a given threshold. The threshold is initially KB. You can change the threshold.
One of the really cool features that TransferManager now supports is pausing and resuming file uploads and downloads. You can now pause a very large file upload and resume it at a later time without having the necessity to re-upload the bytes that have been already uploaded. Also, this helps you survive JVM crashes as the operation can be resumed from the point at which it was stopped. This information is returned as a result of executing the pause operation.