yes and no ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of LS Cheng Sent: Monday, September 11, 2006 1:38 AM To: _oracle_L_list Subject: UNIX file system read/write locks Hi I was wondering if UNIX/Linux filesystem read/write locks still applies in modern filesystems such as qfs/vxfs/OnlineJFS/ext2/ext3? Thanks