Backup/hard link question

mlevy

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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 Computer

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Home built
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Windows 7 Home Premium x64
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Phenom II X4 955 BE
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Asus Sabertooth 990FX
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8 GB OCZ BE 1667
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EVGA GeForce GTX470 SC
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BenQ 19"
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1280x1024
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256 GB OCZ Vertex 3 SSD
2x WD 1 TB
1x WD 2 TB
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Thermaltake 850W
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Coolermaster Cosmos 1000
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Air
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Logitech
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Cyborg R.A.T 7
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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 Computer

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HP Pavillion dv-7 1005 Tx
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Win 8 Release candidate 8400
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[email protected]
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4 gigs
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Nvidia 9600M
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HD built-in
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17" Wxga
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1440x900
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none
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45Mb down 5Mb up
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 Computers

System One System Two

  • Computer type
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    ChillBlast - Custom to my design
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    Windows 11 Pro x64 [Latest Release and Release Preview]
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    Ryzen 9 5950X, 3.8 - 5.2 MHz
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    Asus Prime X570-Pro
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    64GB [2 x 32GB] DDR4 3200MHz
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    4GB NVIDIA GEFORCE GTX 1650 Ti
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    NZXT C750 80 PLUS Gold 750W Modular PSU
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    Workstation Case [Matt Black]
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    Dell XPS 17 10750H
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    Windows 11 Pro x64 Latest RP
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    Intel I7 10750H 5.0GHz
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    Dell XPS
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    32GB [2x16GB] DDR4 2933 MHz
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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 Computer

Computer Manufacturer/Model Number
Home built
OS
Windows 7 Home Premium x64
CPU
Phenom II X4 955 BE
Motherboard
Asus Sabertooth 990FX
Memory
8 GB OCZ BE 1667
Graphics Card(s)
EVGA GeForce GTX470 SC
Monitor(s) Displays
BenQ 19"
Screen Resolution
1280x1024
Hard Drives
256 GB OCZ Vertex 3 SSD
2x WD 1 TB
1x WD 2 TB
PSU
Thermaltake 850W
Case
Coolermaster Cosmos 1000
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Air
Keyboard
Logitech
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Cyborg R.A.T 7
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Standard RR
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 Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    ChillBlast - Custom to my design
    OS
    Windows 11 Pro x64 [Latest Release and Release Preview]
    CPU
    Ryzen 9 5950X, 3.8 - 5.2 MHz
    Motherboard
    Asus Prime X570-Pro
    Memory
    64GB [2 x 32GB] DDR4 3200MHz
    Graphics Card(s)
    4GB NVIDIA GEFORCE GTX 1650 Ti
    Sound Card
    On-board SPDIF to 5.1 System + HDMI [5.1 system]
    Monitor(s) Displays
    32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
    Screen Resolution
    2 x 3840 x 2160 @60Hz
    Hard Drives
    1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
    PSU
    NZXT C750 80 PLUS Gold 750W Modular PSU
    Case
    Workstation Case [Matt Black]
    Cooling
    NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
    Keyboard
    Logitech Wireless MX Keys & K400 + others
    Mouse
    Logitech Wireless MX Master 3S
    Internet Speed
    920 MB Down 50 MB Up
    Antivirus
    BitDefender Total Security Pro
    Browser
    Chrome (always run latest Non-Beta)
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    Samsung 10.2" tablet
    Blackview TAB 8 4G Android Tablet c/w Keyboard
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Dell XPS 17 10750H
    OS
    Windows 11 Pro x64 Latest RP
    CPU
    Intel I7 10750H 5.0GHz
    Motherboard
    Dell XPS
    Memory
    32GB [2x16GB] DDR4 2933 MHz
    Graphics Card(s)
    nVidia GTX1650Ti 4 GB GDDR6
    Sound Card
    Stock [Realtek] 4 Speaker
    Monitor(s) Displays
    17" IPS UHD+ Infinity Edge Touchscreen
    Screen Resolution
    3840 x 2400
    Hard Drives
    2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
    PSU
    Stock
    Case
    Stock XPS Aluminium & Carbon Fibre
    Cooling
    Stock - Active Fan Control
    Keyboard
    Backlit + Various Logitech
    Mouse
    Stock Track Pad + Logitech MX Trackball
    Internet Speed
    72 MB Down 18MB Up
    Browser
    Chrome
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    10.2" tablet
    Sony Z3 Android Smartphone
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control Pad
    10TB NAS
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 Computer

Computer Manufacturer/Model Number
Home built
OS
Windows 7 Home Premium x64
CPU
Phenom II X4 955 BE
Motherboard
Asus Sabertooth 990FX
Memory
8 GB OCZ BE 1667
Graphics Card(s)
EVGA GeForce GTX470 SC
Monitor(s) Displays
BenQ 19"
Screen Resolution
1280x1024
Hard Drives
256 GB OCZ Vertex 3 SSD
2x WD 1 TB
1x WD 2 TB
PSU
Thermaltake 850W
Case
Coolermaster Cosmos 1000
Cooling
Air
Keyboard
Logitech
Mouse
Cyborg R.A.T 7
Internet Speed
Standard RR
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