Backup utility

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I have a few 1TB HD, just bought a USB SATA dock to backup my music collection

Are there any utilities that'll collate directories for the suitable storage capacity, then continue onto drive 2, 3, etc, another 1TB drive, then 500GB until all files/directories are backuped up to original?
Apart from using windows explorer (or NAS file copy) to determine A-C that is 1TB, then D-F is another 1TB, G is 500GB etc etc
 
It's a Synology nas. I'll be connecting it to front panel usb as that'll be faster than copying over lan from a laptop.

Any utils in Synology application database that'll do a similar job? Or just copy known a-e directory of known 1tb that I know will fit on the drive in Synology file station
 
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What happens when you fill up the drive of A-E and then you add further artists/albums with A-E and they no longer fit on the backup drive.
 
There is an option on the Synology NAS when you are creating a folder to specify a maximum storage allocation size per folder. Can't remember where the setting is unfortunately but it is there somewhere. What you could do, and what I actually do myself with my files, is to make several folders on the NAS, each set to the maximum capacity of its personal backup drive. For me I have 2 4TB drives and a 3TB drive for backup via a USB dock, so I have 2 4TB max allocation folders and a 3TB max folder on the NAS.

This max allocation per folder forces you not to exceed the max capacity of each folders backup drive. It sounds like you will have to keep on top of shifting files around on the NAS if you are trying to be neat with your alphabetical sorting, if one of the folders is nearing its max allocation, so not totally fool proof.

Anyway, to do the actual backup I use the free app SyncBack, with one backup profile per backup drive, and do one at a time, swapping disks in the USB dock as required, but I do this on my PC over the network, rather than wholly on the NAS. 1TB per folder won't take that long over the network if it is just doing a sync. It is not automatic of course, you have to take time out to do it manually.
 
Also issue of knowing what is also updated files, replaced, or I deleted myself (as new version etc) would need some kinda of database sync software.

Unless I literally copy the lot every six months or so.
 

You want to set it up to mirror a folder on your NAS to the back drive. Anything you change/move/delete on the NAS folder will be mirrored to the back up when the script runs. Syncback will do this, so would any other file sync software I guess.
 
I would recommend looking at GoodSync but it seems to start with version 11 and it becomes a subscription base. And the best alternatives will be FreeFileSync and Gs Richcopy360 . All have the required features for your backups process
 
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