What you experience is exactly what IDS is supposed to do. The problem is in the restart of the instance. You specify 'oninit -ivy', where the 'i' option stands for initialize. This means the whole diskarcitecture (especially the rootdbs) will be formatted and all information regarding the other chunks/spaces is deleted.
You can restart wityh oninit (with or without the -v option). The -i option is only there to set-up a new instance. If you remove the 'y' option IDS will print a question that tells you if you are really sure you want to discard all existing data.