Network Or PC Issue?

cbjroms · 07-24-2008, 07:41 AM

I have 7 PCs running XP Pro connected to a server running Windows Small Business Server 2003. The main use for the PCs is running an accounting package (Sage Line50 version 11) and the data is stored on the server.

Until approx 6 weeks ago the performance of each PC was perefctly acceptable. More recently however the speed at which the PCs transfer Sage Line50 data to/from the server has significantly deteriorated.

I have done speed tests on each PC. A couple of machines are reading sage date files from the server at the rate of 1000/second. Others can only achieve 250/second. These are comparative rather than absolute test measurements.

My question to this forum concerns a log which I have produced using Procmon. This shows the transactions that occur on one of my slower PCs when trying to run a search on my sage data. The log suggests that the pc is not caching i.e. it is accessing the data for every read rather than using the cache (Fast IO) - there are lots of FAST IO DISALLOWED. When I run the same query on one of my faster PCs there are many fewer reports in the log of FAST IO DISALLOWED.

Can anyone out there give me some advice please?

Thanks in anticipation.

Chris

07-24-2008, 07:41 AM	#1 (permalink)
cbjroms Registered User Join Date: Dec 2007 Posts: 4 OS: XP/SP2	Network Or PC Issue? I have 7 PCs running XP Pro connected to a server running Windows Small Business Server 2003. The main use for the PCs is running an accounting package (Sage Line50 version 11) and the data is stored on the server. Until approx 6 weeks ago the performance of each PC was perefctly acceptable. More recently however the speed at which the PCs transfer Sage Line50 data to/from the server has significantly deteriorated. I have done speed tests on each PC. A couple of machines are reading sage date files from the server at the rate of 1000/second. Others can only achieve 250/second. These are comparative rather than absolute test measurements. My question to this forum concerns a log which I have produced using Procmon. This shows the transactions that occur on one of my slower PCs when trying to run a search on my sage data. The log suggests that the pc is not caching i.e. it is accessing the data for every read rather than using the cache (Fast IO) - there are lots of FAST IO DISALLOWED. When I run the same query on one of my faster PCs there are many fewer reports in the log of FAST IO DISALLOWED. Can anyone out there give me some advice please? Thanks in anticipation. Chris