William L. Maltby ha scritto: > > Yep. Only a few copies of the superblock and the i-node tables are > written by the file system make process. That's why it's important for > files systems in critical applications to be created with the check > forced. Folks should also keep in mind that the default check, read > only, is really not sufficient for critical situations. The full > write/read check should be forced on *new* partitions/disks. > So again my question is: can I use dd to "test" the disk? what about dd if=/dev/sda of=/dev/sda bs=512 Is this safe on a full running system? Has to be done at runlevel 1 or with a live cd? I think this is "better" than the manufactureur way, as dd is always present and works with any brand. Lorenzo