Pageouts Increase unusually fast

Hi, a few days ago I made a big mistake and clicked get info on my main drive that has Snow Leopard installed and added my short name to it and had it applied to all my files and folder. After that I lost the ability to access my storage drives.
I restarted my computer and it wouldn't get past the apple loading screen. I hit Command S and tried typing the commands in terminal and messed something up there.
After that I couldn't get back into terminal and no commands on the keyboard worked including opening the dvd drive.
I went to the apple store and they performed an erase and install of Snow Leopard on the main drive, After that was completed, when my desktop loaded, my 2 storage drives were still inaccessible.
After putting many many commands into terminal it still said permission denied. After 2 more hours the guy fixed it. Apparently a flagship was created preventing changes to the drive. Once the guy got the codes to undo the flagship, he was able to gain access to my storage drives.
After I got it home and turned the mac on I noticed that the pageouts after only 10-20 minutes would increase from 5,000 to 15,000 and more in a very short period of time. This used to take a day or 2. Now it's within 30 minutes. I don't have more applications open than usual.
Why is that happening? wouldn't the Erase and install correct all the issues with my mac? could this be occurring because of the terminal commands and my Storage drives? They were never formatted. Should I backup my data on the storage drives and format them? Any help is greatly appreciated


See the following about memory management:
About OS X Memory Management and Usage
Reading system memory usage in Activity Monitor
Memory Management in Mac OS X
Performance Guidelines- Memory Management in Mac OS X
A detailed look at memory usage in OS X
Understanding top output in the Terminal
The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.