SqlServer version and DNG verification

[rNeil]

Hert,

Interesting day. Just realized you have a server version (good!) and that Lr5 has a DNG verification feature ... it can go through the catalog and verify the hash-tag data on all included DNG files (the only real reason to go the DNG route that appeals to me). This DNG verification makes the backup process so much simpler ... even Peter's comfortable with dumping his complicated bucket-system with optical-disk backups with this feature available.

So, quick question: does the server version (which would fit our needs better than a stand-alone) have DNG verification for the cataloged images? Or is this a possible feature relatively soon?

Lr5's DNG verification would make a bit more palatable staying on our separate stand-alones, BUT ... if your program also had a routine DNG verification menu item, I'd certainly become more interested in purchase.

R. Neil Haugen

[Hert]

Photo Supreme has the Folder Verification mechanism which works with file signatures. After running File Verification one time, all your files get signatures stored in the database and when ran again it will tell you exactly:

- which files got changed (based on the signature in the database compared to the signature from the file on the File System),
- which files are new on the file system,
- which files are deleted on the file system but still exist in the catalog
- which files are deleted in catalog, but not on the file system
- which sub-folders are new on the file system,
- which folders are deleted from the file system, not in catalog
- which folders are deleted in catalog, but not on the file system


Also read up in the Quick Start here:
http://www.idimager.com/Trial/QuickStar ... upreme.pdf

And here:
http://manualsu.idimager.com/folder_verification.html

Hope that helps

Hert

[tstoddard]

This DNG verification makes the backup process so much simpler ... even Peter's comfortable with dumping his complicated bucket-system with optical-disk backups with this feature available.

I can certainly see the merit in the way in which Adobe verifies only the image portion of DNG files, but, does Peter really believe that using that form of verification will protect his work from a catastrophic event such as fire, flood, or theft? How does the ability to verify DNG files simplify the backup process? The whole point of doing optical-disk backups is to enable off-site storage of files should the local copies become lost or corrupt. I suppose he may mean that he would still need to do optical-disk backups but that he would not need to use his bucket system. I still fail to see why verifying DNG files would have that benefit, but, far be it for me to question Peter. It just sounds a little too much like an Adobe commercial to me.

Also, from what I've read, this DNG verification only works on DNG files created by Abobe software. DNG's created directly by cameras may not work (at least in Lightroom). It would be a nice feature for Hert to add to PSU but it seems to me an even more valuable program would be one that periodically goes out and verifies all of your DNG files. I would think that you would want to verify your backups at least as often as you would verify your working copies. It can imagine a program acting like an anti-virus program doing a scan on a weekly basis. PSU and Lightroom probably aren't aware of the location on disk of your backup files so they wouldn't be able to do this.

Thank you for mentioning this. I don't use DNG files currently so I wasn't aware of the DNG verification capabilities before reading your post. If I was a little more adept at programming I might even try to create a stand-alone product that does this.