When I did a clean install of OES SP1 on a new machine it created a NSS
SYS: volume with block size 4KB. When I used Remote Manager to create an
APPS: pool and volume it again set the block size to 4KB. This sounds very
small to me compared to my NW 5.1 server which uses (NWFS) 64KB block
sizes. I've searched the documanetation for advice on block size but cant
find anything.

Can someone here advise me?