Do I need to change offset in chunk?

Help..... it's me again!!!!! I think that I've done something silly! (but am not too sure!!!!) I created new spaces for my physical and logical logs and removed from rootdbs. Being very new to the DBA thing I created logical_space_1 and logical_space_2 and placed my logical logs in these spaces. log_space contains my physical log. INFORMIX-OnLine Version 7.12.UC4 -- On-Line -- Up 02:15:22 -- 9624 Kbytes Dbspaces address number flags fchunk nchunks flags owner name 803d70e0 1 1 1 1 N informix rootdbs 803d7658 2 1 2 1 N informix test 803d76c0 3 1 3 1 N informix log_space 803d7728 4 1 4 1 N informix logical_space_1 803d7790 5 1 5 1 N informix logical_space_2 5 active, 2047 maximum Chunks address chk/dbs offset page Rd page Wr pathname 803d7148 1 1 0 44 5 /dev/dsk/rootspac 803d72f8 2 2 0 1125 26 /dev/dsk/borealis 803d73d0 3 3 25000 4 3 /dev/rdsk/borealis 803d74a8 4 4 27500 2 0 /dev/rdsk/borealis 803d7580 5 5 14500 4 4 /dev/rdsk/borealis 5 active, 2047 maximum I've been having some problems when using Unbuffered logging, ie time taken to retrieve data, and I noted that logical_space_2 has an offset of 14500, and was wondering if this would have some bearing on the time taken to retrieve. The number of pages in test is 100000. The number of pages in logical_space_1 is 1500, and in logical_space_2 the number of pages is 750. Can I increase the number of pages in a chunk? What I would like to know is do I need to change the offset, and if so how do I do so? If this is not the problem then what do I check next Thank You in Advance David M MacAllister Securicor Omega International Ayr Scotland