Version: IDS 10

I ran following tests:

1. simple large objects in blobspace
2. simple large objects fragmented in dbspace along with the rows.

I am just trying to understand:

1. I see more benefit of using simple large objects in dbspace because
it share pages with other simple large objects. But, in blobspace
pages are not shared. So it can potentially waste lot of space. Am i
missing something here other than the way blobpage in blobspace are
logged.
2. Are there any restrictions on number of pages a dbspace can
allocate for blobpages. Do they have their own tablespace ?