February 2, 201214 yr I've got a bunch of really large text files that I need to backup and archive every day. I used to work on the files on a windows machine and have used Syncbackse to backup to an unRAID share with each file zipped separately. Now I am using a Mac and need someway to do the same. Problem is whenever I search google about rsync with compression, all it seems to come up with the compression used in transmission. Going through the man pages it seems natively rsync won't do what I want, so is there a program on the Mac that will do what Syncbackse does? Currently, I am using Syncbackse on a Windows machine with my Mac drive and unRAID share mapped. Any way of doing this without having to use Syncbackse and the windows machine in the middle? Just wanted to check if it there was a ready made solution commercial or opensource out there (hopefully with a nice GUI) before bashing out a diff, bzip2 and rsync script.
February 2, 201214 yr rsync will not do what you want. The compression is only for transmission, not storage. There are ways of rsyncing the files from one machine to another and preserving space. But the files are uncompressed. Only the changed files have multiple copies. I suppose you could do a zip -m (move) all the dated directories after a certain time. Or you could do a find with gzip (or zip) to gzip(zip) every individual file, but rsync will not use the remote compressed files for comparison and therefore doesn't seem like it will suit your needs.
February 2, 201214 yr Look at rdiff-backup. Maybe that will provide something you need. Although the cost is a heavier weight on the client and server side. (needs python). Weigh that with just using a large disk for your daily backups and living with multiple copies of a file in uncompressed format. If you can live with that, then my rsync-linked-backup script on googlecode would help. Only the changed files have multiple versions, Files which are not changed, are "linked" from the prior backup to the current. When they are changed, the link is broken, and the new file us rsynced. Makes it easy to go back in time.
February 2, 201214 yr Author Actually found something that is cross platform open source called duplicati, that supports compression and more. http://www.duplicati.com/home Only problem is the darn thing keeps on crashing on the Mac. Got to do some troubleshooting and fingers crossed that this thing will work. Pretty surprised that there isn't a commercial software to do this on the Mac.
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