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Windows 7: Backup/hard link question

23 Oct 2009   #1
mlevy

Windows 7 Home Premium x64
 
 
Backup/hard link question

In an effort to make more space on my HDD I moved some folders to another partition and used a hard link to make it look like the files are still on the C drive.

For reference the command is:
mklink /J <link> <target>

How will this effect my backup? Will it backup the folders as though they're on the C drive?


My System SpecsSystem Spec
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23 Oct 2009   #2
zigzag3143

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by mlevy View Post
In an effort to make more space on my HDD I moved some folders to another partition and used a hard link to make it look like the files are still on the C drive.

For reference the command is:
mklink /J <link> <target>

How will this effect my backup? Will it backup the folders as though they're on the C drive?

Good question. Gut feeling, no. It will back up the mklink but not go looking for what it represents. Let us know if you find out. Great question

Ken
My System SpecsSystem Spec
23 Oct 2009   #3
Barman58

Windows 10 Pro x64 x3, Ubuntu
 
 

I think this would depend on the software used

I have seen reports where problems were encountered with backup programs backing up both the actual files and the the same files through the hard link, this would occur in locations such as the WinSXS folder which contains many links to DLL files in other parts of the folder structure.

Windows 7 backup is designed to back up all NTFS properties except hard links
My System SpecsSystem Spec
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23 Oct 2009   #4
mlevy

Windows 7 Home Premium x64
 
 

I'm using the built-in backup.

I'm also using the RC still, going to milk it as long as possible in hopes of building a new monster rig.

Barman, thanks for the info, guess I'll add the new location to my backup plan, if possible..
My System SpecsSystem Spec
24 Oct 2009   #5
Barman58

Windows 10 Pro x64 x3, Ubuntu
 
 

What I would suggest you do is set-up a small test backup that includes a hard link or two that links to external data and check what happens - if the links are followed or not then the backup policy could be adjusted accordingly. You could also test the recover process before committing you actual data to the plan
My System SpecsSystem Spec
25 Oct 2009   #6
mlevy

Windows 7 Home Premium x64
 
 

I can't verify that the default backup will back the hard linked files, it won't let me browse that data.

I'll see if i can create another backup job but it looks like no. I may just create a batch file to run and schedule it, that way I'm sure it's backed up...
My System SpecsSystem Spec
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 Backup/hard link question




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