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Thumbs.db "best practices"
posted by Jean-Francois Panisset  on July 18, 2016, 4:06 p.m. (4 years, 16 days ago)
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We recently realized that we had an old GPO lying around which would disable generation of the Windows Thumbs.db thumbnail cache on network drives: turns out this is a pretty bad thing, since you can end up generating a large number of IOPS from Windows Explorer just sitting in a directory full of images.

A "simple" workaround is to disable thumbnails altogether via GPO, but that makes for some unhappy users.

Does anyone have experience they can share about this? If you enable thumbnail generation in a networked storage, multi-user environment, does it work? Or do you run into permission problems / thumbnail DB corruption issues?

JF


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Response from Johannes Amorosa @ July 18, 2016, 4:06 p.m.
I don't know if this applies to your setup.

If you use samba, like we do, you can use veto files option [1].

veto files = /._*/.DS_Store/.Trash*/.TemporaryItems/Thumbs.db/.apdisk/

Best
JA


[1] https://www.samba.org/samba/docs/using_samba/ch08.html


On 06/23/2016 12:35 AM, Jean-Francois Panisset wrote:
We recently realized that we had an old GPO lying around which would disable generation of the Windows Thumbs.db thumbnail cache on network drives: turns out this is a pretty bad thing, since you can end up generating a large number of IOPS from Windows Explorer just sitting in a directory full of images.

A "simple" workaround is to disable thumbnails altogether via GPO, but that makes for some unhappy users.

Does anyone have experience they can share about this? If you enable thumbnail generation in a networked storage, multi-user environment, does it work? Or do you run into permission problems / thumbnail DB corruption issues?

JF



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Johannes Amorosa | Celluloid VFX

Celluloid Visual Effects GmbH & Co. KG
Paul-Lincke-Ufer 39/40, 10999 Berlin
phone +49 (0)30 / 54 735 220
fax   +49 (0)30 / 54 735 221

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Response from Jean-Francois Panisset @ July 18, 2016, 4:06 p.m.
Disabling Thumbs.db creation can also be done on the client side via GPO, the problem is that if Windows Explorer is sitting open on a directory full of images it knows how to deal with (say JPEGs), it will generate a surprising amount of load on your NAS as it repeatedly stats and reads the images to display / refresh thumbnails in the browser.

I guess you might be able to disable thumbnail view in Windows Explorer if you were really draconian...



On Fri, Jul 15, 2016 at 1:21 AM, Johannes Amorosa | Celluloid VFX <johannesa@celluloid-vfx.com> wrote:
I don't know if this applies to your setup.

If you use samba, like we do, you can use veto files option [1].

veto files = /._*/.DS_Store/.Trash*/.TemporaryItems/Thumbs.db/.apdisk/

Best
JA


[1] https://www.samba.org/samba/docs/using_samba/ch08.html


On 06/23/2016 12:35 AM, Jean-Francois Panisset wrote:
We recently realized that we had an old GPO lying around which would disable generation of the Windows Thumbs.db thumbnail cache on network drives: turns out this is a pretty bad thing, since you can end up generating a large number of IOPS from Windows Explorer just sitting in a directory full of images.

A "simple" workaround is to disable thumbnails altogether via GPO, but that makes for some unhappy users.

Does anyone have experience they can share about this? If you enable thumbnail generation in a networked storage, multi-user environment, does it work? Or do you run into permission problems / thumbnail DB corruption issues?

JF



To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe

-- 
Johannes Amorosa | Celluloid VFX

Celluloid Visual Effects GmbH & Co. KG
Paul-Lincke-Ufer 39/40, 10999 Berlin
phone +49 (0)30 / 54 735 220
fax   +49 (0)30 / 54 735 221

To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe


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Response from Philippe Chotard @ July 18, 2016, 4:06 p.m.
I sometimes run into cases where the thumbs.db is locked which prevents any user to delete the parent folder.
I'm in a relatively small environment so that might become a burden on a larger scale..

On Wed, Jun 22, 2016 at 3:35 PM, Jean-Francois Panisset <panisset@gmail.com> wrote:
We recently realized that we had an old GPO lying around which would disable generation of the Windows Thumbs.db thumbnail cache on network drives: turns out this is a pretty bad thing, since you can end up generating a large number of IOPS from Windows Explorer just sitting in a directory full of images.

A "simple" workaround is to disable thumbnails altogether via GPO, but that makes for some unhappy users.

Does anyone have experience they can share about this? If you enable thumbnail generation in a networked storage, multi-user environment, does it work? Or do you run into permission problems / thumbnail DB corruption issues?

JF


To unsubscribe from the list send a blank e-mail to mailto:studiosysadmins-discuss-request@studiosysadmins.com?subject=unsubscribe


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