Synchronization of compressed folders.

 


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Bidirectional synchronization of folders or complete disks under Windows, from disk to disk, from pc to pc, locally or over the network. Data security for documents that need to be edited on multiple computers. Transport of documents on portable disc, usb key etc ...

WinSynchro

Aragon-Technologies software development company.

Bi-directional synchronization of complete folders or disks locally or on a network. Data security for documents that need to be edited on multiple computers. Transport of documents on mobile media, backup ...

Software management of disk duplexing called disk mirroiring in RAID mode: a technique that duplicates the contents of a volume on two different hard disks to ensure good fault tolerance. Reduced risk of data loss in the event of storage media failure.

Synchronization of local folders in a cloud. Cloud synchronization.

Synchronization of compressed folders.




Particularities concerning the synchronization of compressed files .zip, .gz, .7z, .rar, etc ...


Any synchronization operation is based on the last modification date of the files to decide whether or not to transfer a file from the source folder to its image folder. However, in the case of a compressed file containing a complete folder, the date of the last modification is the date of the last compression and not that of the last modification of one of the files contained in the folder. There is therefore a risk of overwriting a compressed folder containing a recent file with a compressed folder containing an older file but whose last compression date is more recent. This problem arises identically with the synchronization of clouds when precisely we would be tempted to want to use compression to accelerate the online transfer and store more volume on a limited cloud.



WinSesame:


The same problem arises with files or folders locked by WinSesame whose last modification date is in fact the date of the last lock.