I have been trying to track down why the Mac OS X finder in Snow
Leopard, when bound to Active Directory can be painfully slow at just
listing files on a SMB share. The symptoms that occur are simply
browsing through a SMB share in the Finder, and files will list, you
go to another folder, they list, and then you go to another folder and
suddenly it looks empty. But it's not. It's just the Finder being
incredibly slow at listing the files. There doesn't even have to be
many files in there, just a few. I can reproduce this everytime on a
fresh install of OS X 10.6.x, and after binding the machine to an
Active Directory server (in my case a Windows 2008 R2 server)
Using Googlepedia, you will turn up all sorts of information on this,
which is anecdotal at best. I had tried so many things, but have come
up with a fairly good solution for *us* (Note that 'us' part, I'm not
saying this will help in all situations). Basically, I have
concatenated several suggested settings from the following website,
and made some changes, mostly to the /etc/nsmb.conf file. (Don't ask
when 10.7 Lion comes out, because due to license issues, I hear SMB
support is gone!) Here is the website where most of my information
You will find that page very lengthy, with lots of people trialling
different things, with some things working, some helping, and some not
helping at all. I have been messing with this for well over a year
now, and have finally come up with something that seems to mitigate
this issue. So, here is my new /etc/nsmb.conf file:
BGarlockMacPro:~ bruceg$ cat /etc/nsmb.conf
Again, I will reiterate that this helps in my case, and your mileage
may certainly vary. Make sure to have a backup before you change this
file, and if something happens to your machine from the increased heat
from all the productivity increases you will gain from this, I'm not
If this page was useful to you, please help others find it:
More Articles by Bruce Garlock
Have you tried Searching this site?
Unix/Linux/Mac OS X support by phone, email or on-site:
This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more. We appreciate comments and article submissions.
Publishing your articles here
Jump to Comments
Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them. I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. I also may own stock in companies mentioned here. If you have any question, please do feel free to contact me.
Specific links that take you to pages that allow you to purchase the item I reviewed are very likely to pay me a commission. Many of the books I review were given to me by the publishers specifically for the purpose of writing a review. These gifts and referral fees do not affect my opinions; I often give bad reviews anyway.
We use Google third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.