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I have ~700 GB of photos. I back up on two separate externals, 2 TB each, rotating them to my safe deposit box. I use 'xcopy' with switches to get the changed files, so the first backup I do is full and subsequent runs add just the new or changed files.
However, if I dump a full CF card into Lightroom and do a backup, then do my sorting, I will typically delete 3/4 of the shots. I then do my differential backup, which adds the changed LR catalog to the backup disk. However, the backup disk still has all the files that I have deleted from my master catalog, which is on the internal hard disk.
When I restore the full backup after a disk crash or after changing PCs, now I have all the files that were deleted from LR and which LR does not see anymore, but they're taking up space on the disk. Over time this will grow into an increasing problem.
1. What to do about deleting the trash that's there now?
2. How to keep it from building up in future?
My new PC has Win 10, and I want to solve the above problems. In addition, I want a program that verifies the written files with checksum to see that the backup went correctly.
I'm considering the MS Win 10 built-in backup and File History tools as well as the 5 listed in the following PC Mag review. Does anyone know if any of these tools does what I want?
http://www.pcmag.com/article2/0,2817,2278661,00.asp
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