> I am trying to set up RAID1 (software RAID)+ LVM on SuSE 7.3. We seem to > get > both of them working seperatly, but not > both together. When using Yast2 we get some problems with the partition > types. > Has anyone set this up? What we would like to know is in what order things > should be set up. > We do get it to work (somewhat) if we set up RAID1 first, and then > implement > LVM, though we suspect that the LVM will > "hold" the RAID in that case, meaning a stop of RAID will not be working. > Our first thougts was to set up LVM and then create RAID on the partitions > we > want mirrored - could be we are thinking the > wrong way. After setting up RAID1, and then LVM, we get a "device buzy" > reply > when trying `raidstop` > Can anyone cast some light on this subject? I set up RAID1 + LVM with YaST2 without any problems. In the expert partitioner you should at first create identical partitions on both hard disks. If they have a different geometry, you should enforce hdc's geometry by passing appropriate kernel boot parameters, eg. "hda=239340,16,63". My hard disks (IBM IC35L120AVVA07-0, 120GB) look like this: Disk /dev/hda: 16 heads, 63 sectors, 239340 cylinders Units = cylinders of 1008 * 512 bytes Device Boot Start End Blocks Id System /dev/hda1 1 2081 1048792+ fd Linux raid autodetect /dev/hda2 2082 3000 463176 82 Linux swap /dev/hda3 3001 239340 119115360 fd Linux raid autodetect Then I set up two RAID arrays, /dev/md0 consisting of /dev/hda1 and /dev/hdc1, which, formatted with ReiserFS, became / (root). I added /dev/md1, which consists of /dev/hda3 and /dev/hdc3, as the only physical volume to a single volume group, /dev/vggroup. Then I created logical volumes within the VGGroup for /usr, /var, /tmp, /home and /space, which is where I store the large data. These vggroups were assigned the appropriate mountpoints and formatted with ReiserFS as well. All within YaST2 of SuSE 7.3. The reason / is on a seperate RAID-1 array without LVM is that current LVM versions can't unmount a logical volume that is mounted as / (root) ... -- Pieter Hollants <nospam417 at hollants.com> - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
