Hello,
1. What do you mean by "I moved the files" ? If you moved/copied the data files to another location with more space, did you also change the basepath to point to the new location ?
2. top showing 100% doesn't have to be a concern. I've had a system show >= 3400% during startup. Look with "top -H" to see what threads are running when the system is starting up (wouldn't be surprised if it's the LogReplay). This will give you a much better idea of what is going on with the indexserver during startup. At the same time do a tail on the indexserver trace file.
3. As someone already asked, did you identify what caused this sudden data growth on the DB ?
4. I see that you've had this problem for a week or so. Have you opened a message at SAP ?
KR,
Amerjit