Hello Everybody, I have a Windows SBS 2003, which is primarily used as a file server. Shared folders with plain ascii text files are accessed by users to read and write through a DOS 16 bit application. Users also use the shared folder to view "images" in the DOS application. My challenge is (a) The Page/Sec is peaking to 100% every 10 seconds and the result is erratic performance - delays experienced by user. (b) The disk queue also peaks to 70-100% once in 10 seconds. The server is a Dell PowerEdge 2800 with 4 GB RAM and a Raid 5 System. Approx 30-50 users connect to the Server at a time. The primary is a PDC for the domain. All possible services are stopped on this server and DNS, WINS etc is load balanced to a secondary server. Any help to improve the performance of the server will be sincerely appreciated. Please let me know if I can offer any more stats to diagonize this further. Thanks. - Santy Balan =================================================================================================================== Here are few statistics of the Server :- TOtal Memory : 4 GIG Raid 5 C Drive : 12 GB {paging file : 2 - 2 GB} D Drve : 240 GB {paging file : 8 - 20 GB} Acting as File Server for shared folders. Accessed by 30-50 users to read/write text files into the shared fodler. Pages per sec... peaks to 100% about every 10 seconds Average Disk Queue peaks to 70-80% about every 10 seconds Process Stats % of User Time = 5-10% % of Processor Time = 100% % of Privileged Time = 100% Memory Available Bytes = 100% Free System Page Table Entries = 100% Commit Limit = 100% Page Reads = Spikes in 10 sec upto 100% Page writes < 5% Transition faults/sec = spikes in 10 sec upto 100% Physical Disk Average Disk Queue = Spikes in 10 sec upto 100% Paging File % of paying file usage < 1 % constant Commit Charge (K) Total : 2490632 Limit : 14409488 Peak : 2544516 Physical Memory (K) Total : 4193360 Available : 1663572 System Cache : 1854808 Kernel Memory (K) Total : 124652 Paged : 73828 NonPaged : 50824 Totals : Handles : 25707 Threads : 1090 Processes : 74 CPU Usage = 2% Commit Charge : 2431M/14071M PF Usage : 2.37 GB

Is this server running Exchange? If so, what's the load with Exchange? Here is what you basically know... "(a) The Page/Sec is peaking to 100% every 10 seconds and the result is erratic performance - delays experienced by user. (b) The disk queue also peaks to 70-100% once in 10 seconds." (a) is causing (b). The question is why is the system paging so much every ten seconds. I would use task manager, go to processes, and sort your processes by Mem Usage. Look what is spiking every ten seconds in memory usage. You may also want to enable under View -> Select Columns... Page Faults, Page Pool, Non-Paged Pool, Handle Count, Thread Count. Those might provide clues, too. Please help survivors of Hurricane Katrina. www.redcross.org

No it is not running Exchange - but running AD and DNS/Wins. Approx 30 users. Network traffic and CPU usage is below 5-10% Only Page per Sec and Average Disk Queue is shooting Up.

OK, above advice still applies. "enable under View -> Select Columns... Page Faults, Page Pool, Non-Paged Pool, Handle Count, Thread Count. Those might provide clues, too." Corn chips are no place for a mighty warrior!