It is neither good nor bad.

It is what it is.

30 is a teeny tiny number. A tablespace with only 30 extents allocated it in it probably a tablespace dying to get a BUNCH more data (you typically do not talk of tablespaces having "extents" inasmuch as you would a SEGMENT like a table or index having them).

All you could say is:

that is either a dictionary managed tablespace with 30 free extents that have not been coalesced by SMON yet.

Or, it is a tablespace with 100% of space allocated and 30 segments with one extent each.

or it could be a tablespace with 1 segment - 29 extents allocated to it and on big free one left.

Or it could be anywhere between 1 and 30 segments with between 1 and 30 extents allocated to it.


In any case - there are other cases that could happen - but the bottom line would be "insufficient data to say anything about anything, and I hope - really hope you were not looking for me to say 'oh gosh - you need to reorganize that object to have a single extent, since those are best' - we learned 20 years ago that isn't true, wasn't true and won't be true"

They probably were though, so in a way, consider yourself lucky. You dodged a bullet there.