On 3/24/2014 4:19 AM, Alan Bourke wrote:
On Sun, Mar 23, 2014, at 04:18 PM, Jeff Johnson wrote:
Is there a down side to disabling SMB2
You probably can't and if you could probably wouldn't want to.
The situation is that the SMB version used is negotiated depending on
server and client. So XP machines for example will always use SMB v1.
Windows 7 connected to Server 2008 or later will use SMB2. Windows 8
connected to Server 2012 will be SMB3, or SMB2 if connected to earlier
than Server 2012.
SMB2 is (these days) generally not an issue assuming clients and server
are up to date in terms of service packs and Windows Updates. On a
couple of occasions I have had to apply the Microsoft Enterprise Hotfix
Rollup to all Win 7 and Server 2008 machines on a network to stop
spurious file accessing errors but I've never seen speed problems like
the ones you mentioned.
It is common to almost all of my customers using Windows 7. The data
files are located on one computer and the program on a local computer is
opening and using the tables. The disabling oplocks and setting sharing
violation retries and delay to zero has done the trick. But all of a
sudden this week one customer slowed down again. I can't imagine why I
even have to do this.
--
Jeff
Jeff Johnson
[email protected]
SanDC, Inc.
623-582-0323
Fax 623-869-0675
http://www.san-dc.com
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