I have encountered a set of instructions that contains the text:
The option exists to expand onto the second drive while the system is live. Except for simplicity, there isn't any reason not to. - CentOS Wiki - How to Convert a CentOS 5 System to RAID1
As far as I can tell the last sentence can be rewritten as: "For simplicity alone, there is reason to." Is that correct and does the word 'except' make the last sentence a triple negative statement?
Edit: for clarification the thing being decided to do or not to do, is if it should be done with the system in its live state instead of offline.