Open Source Document Management System | OpenKM

hello everyone,now i face a problem of the repository volume.for it only can be allocate at one disk and my computer support the 2TB disk as the biggest volume,it can't work normally when the documents accumulate exceed the number.so i want to know if there are any solution to deal the problem.thanks for you help.

I do not know about which kind of problem you refer with "it can't work normally when the documents accumulate exceed the number.so" ?