It is specific to each file-system, not HP-UX or the server. The "df -g" command shows it, but apparently not if you are using Veritas file-system; Veritas says they do not support "df -g" (don't know if that's just HP-UX or generally). So, instead, for VxFS on HPUX, use "/usr/sbin/fstyp -v <special>", where "<special>" is the block-special device underlying the file-system. on 2/23/05 6:51 AM, Jaffar_DBA at sjaffarhussain@xxxxxxxxx wrote: > Can any one give me the command to check the HPXU block size? > -- //www.freelists.org/webpage/oracle-l