thanks again,

yes i have 3 disks in a raid 5 config. The one resultant raid array is then divided into 3 partitions, c:, d: and e:

u are correct.

thanks for the solution u gave me....

at very first solution i can apply is to change the location of log file from d drive to e drive. and all the data of e drive and backup i will move to NAS ,,, so OS & tempdb will be together on C and data file on D and log file on E drive.

would it this immidiate change will benefit me a bit or not ?

and should i use index tunning wizard ? and how abt that 3gb switch?

so all these things will give me few days for other raid 1 disk configuration in server.

pls suggest me the next

and also can u give me any check list for the performance counter whiich gives the should be ideal data for the processes ,so i can check or should set some alert on that those values...

thansk

mithun gite