Hello I have been using mdadm to successfully duplicate HDD's as a means of rolling out a default build to a small number of desktops. Each desktop is enabled with software raid in FC3. The process I used has been as such: Build base PC - Dell Precision 370 with 2 x 80Gb HDD's. (Disable BIOS SATA RAID Option) Remove Sata disk 1 from Base PC's and install into 2nd PC as Sata Disk 0. Create portitioning on 2nd PC on SATA Disk 1 identical to SATA Disk 0. Run mdadm /dev/md0 --add /dev/sdb1, mdadm /dev/md1 --add /dev/sdb2, ........etc This all worked swimmingly well until.... We bought a new batch of Precision 370's which had a different make/model of HDD. When I run mdadm /dev/md0 --add /dev/sdb1 the system just hangs. All the partitioning size's are identical between the two disks with type FD. Has anyone seen this before ? Any suggestions as to what might be causing the problem ? This also present a problem if one of the PC's with s/w has a disk failure, we will not be able re-build the raid devices. Kind Regards Mark Rus
