Re: UNC versus drive letter performance

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From: Louis Solomon [SteelBytes] (louis_at_steelbytes.spam-is-bad.com)
Date: 03/24/04 

Date: Wed, 24 Mar 2004 16:28:02 +1100

in my experience, UNC is as fast for transfer of data, but the opening of
files can be slower, depending on network config.

what am I saying ? due to some issues in the authenitcation such as
difference LM/NTLMv2/etc settings on client and server, and bugs etc,
opening a file _sometimes_ takes way longer then it should, but once it is
open, the transfer is as fast as mapped drive. 

-- 
Louis Solomon
www.steelbytes.com
"JR" <anonymous@discussions.microsoft.com> wrote in message 
news:C1406542-5FED-4CA8-AE7D-92ADB10A3D72@microsoft.com...
> Hi,
>
> I'm trying to find out about the performance differences between these two 
> scenarios:
>
> (a) Accessing files through a local drive letter
> OR
> (b) Accessing the same files through a UNC share.  (E.g. 
> //fred/myfiles/... where fred is the name of the local machine).
>
> I have seen two Knowledge Base articles, 328252 and 260091.
>
> One seems to say that there is always a signficant difference, while the 
> other implies that UNC is relatively close to  drive letter performance, 
> as long as you have Win 2000 Service Pack 3 or later.  Which is correct?
>
> JR
>

Relevant Pages

  • UNC versus drive letter performance
    ... I'm trying to find out about the performance differences between these two scenarios: ... Accessing files through a local drive letter ... One seems to say that there is always a signficant difference, while the other implies that UNC is relatively close to drive letter performance, as long as you have Win 2000 Service Pack 3 or later. ...
    (microsoft.public.win32.programmer.networks)
  • Re: Persisting a Network share drive to a letter
    ... That was a pretty powerful wakeup call to use UNC names instead. ... Open Windows Explorer and navigate to the network location. ... It should persist the connection. ... When i login to the app server box and create a drive letter X: ...
    (microsoft.public.windows.server.networking)
  • Re: Please help an idiot!!!
    ... How are you opening them up.... ... [e.g. by URL or by UNC] ... I need it to edit the doc and then save the ... >>AFAIK I think this is working as expected. ...
    (microsoft.public.inetserver.iis.security)
  • Re: Program that requires drive letter fails
    ... If I change this to Requires drive letter, the program fails. ... because it will not run correctly from a UNC path. ... mapped drive options are incompatible settings. ...
    (microsoft.public.sms.admin)
  • Linked table manager looking at the wrong location
    ... On a FE/BE Access 2007 database the IT team asked me not to use a mapped ... drive letter but the server name and path when linking tables. ... UNC they show Z: as the drive location. ...
    (microsoft.public.access.tablesdbdesign)