Luminous Landscape Forum

Raw & Post Processing, Printing => Adobe Lightroom Q&A => Topic started by: nemophoto on October 17, 2008, 02:23:42 pm

Title: Lightroom 2.0 and catalogs on network drives
Post by: nemophoto on October 17, 2008, 02:23:42 pm
When I use Lightroom, I prefer to have catalogs specific to particular jobs/folders, rather than have one gigantic catalog. I'm able to create new catalogs on external drives, but the program won't allow the creation of a catalog on a network drive. This is a major bummer, because certain jobs need to go onto the network drive rather than local, external HDs. (I recently bought a new networkable Drobo with this in mind.)

Does anyone know why Adobe imposed this limitation? Is there a work-around? Thanks.

Nemo
Title: Lightroom 2.0 and catalogs on network drives
Post by: Schewe on October 17, 2008, 03:28:33 pm
Quote from: nemophoto
Does anyone know why Adobe imposed this limitation? Is there a work-around? Thanks.


Yes, for a very good reason...the fact that the database is a single user mode ONLY and putting it on a share point would encourage (tempt" people to try to use it in a mult-user environment which would not work very well at all. The work around is, don't do that...if you want to have the catalog and the images, etc on the same drive it must be a locally attached drive. If you want the images on a network drive, you can do that, but the catalog has to be local to the machine running Lightroom.
Title: Lightroom 2.0 and catalogs on network drives
Post by: nemophoto on October 17, 2008, 03:42:58 pm
Thanks for the explanation. I suppose I'll create a catalog folder for Lightroom/network images (the default is buried too deep).
Title: Lightroom 2.0 and catalogs on network drives
Post by: theophilus on October 20, 2008, 10:30:48 am
Use e-sata drives and you'll be fine.
Title: Lightroom 2.0 and catalogs on network drives
Post by: nemophoto on October 20, 2008, 11:53:37 am
I have seperate catalogs on each of my e-sate external drives -- no problem. However, some projects we have here need access by both my computer and my wife's (AD/graphic designer). For that reason, certain jobs are kept on the network drive for easier access.
Title: Lightroom 2.0 and catalogs on network drives
Post by: Steve Morton on November 11, 2008, 09:32:53 am
Quote from: nemophoto
I have seperate catalogs on each of my e-sate external drives -- no problem. However, some projects we have here need access by both my computer and my wife's (AD/graphic designer). For that reason, certain jobs are kept on the network drive for easier access.
If you are running Windows, there is a 'fix' for this - it isn't very nice, but it does work!

You need to use the Windows (actually DOS) 'subst' command to create a virtual drive, with a new drive letter, for the network drive - this fools LR into thinking that it is a local drive. (Anyone, like me, who worked with MS-DOS before all this graphical nonsense came along, should remember the DOS command prompts!).

The command has to be run in a DOS window, or from the autoexec.bat file.  I have shortcut on my desktop that does it - it is called 'Create Virtual drive T:', and looks like this:

(http://stevemortonphotography.co.uk/table%20jpegs/shortcut.jpg)

If you want to put it in the autoexec.bat file (which lives in root folder of the boot drive), then find and open the file in a text editor of your choice, and add the line:

subst t: s:\

Putting this line in the autoexec will cause the virtual drive to be created each time the system is started

The network drive has previously been assigned the drive letter s:, and the new virtual drive now has the drive letter t:.  It appears in Explorer as 'Disconnected Network Drive (T:)', and can be accessed from LR's 'Select Catalog' startup dialog.  You can then select any LR catalogs on the drive in the usual way, and they will open without error - note that LR will be quite a lot slower than you're used to, as it reading and writing to over a network, and, of course, don't attempt to access the same catalog from different machines simultaneously!

I'm not familiar with the Mac, and have no idea if there is a similar function available.

I use this technique so that we can access family and holiday shots and similar from my wife's laptop in the comfort of our living room, rather than having to drag visitors into the hell that is my study/digital darkroom!!

I hope this works for you

Cheers


Steve Morton

Visit www.stevemortonphotography.co.uk for some photo's of North Devon landscapes and gardens.


PS.  I have just noticed that a much more detailed description of this trick has been published in the LR forums here:

http://www.lightroomforums.net/showthread.php?t=1595 (http://www.lightroomforums.net/showthread.php?t=1595).

You'd probably better take note of Adobe's warnings as well, although it has worked fine for me.