Adaptec Storage Manager

Hi.

We have a server with an array consisting 2 146GB disks in Raid 0 and we want to expand it with third disk through Adaptec Storage Manager. Can we close the ASM during the expansion process, or must we wait until the expansion process will finished? We will do this from our office computers, so we want to be sure if something happends (power fail), the expansion process will continue. Have anybody experience with this?

And sorry for my bad english.