T- factor will varyoff and varyon the vg.

Hi experts,

I what to change t-factor value for one of pagingvg. I what to know if i change t-factor value to pagingvg the vg will varyoff and varyon -- if that mean time if any application using my paging sapce , the what will happen to my application it will crash.
I what ans:
1. Its varyoff of the vg or not.


thanks in advance.

sk