> Yes, the /boot partition can be md raid. But it can't be LVM. We're > using md raid for all server that have no hardware raid controllers. > GRUB can be installed on both drives at the same time, no problem. > > Good idea and I think it should be no performance problem. But use LVM! > Don't do md raid for each partition you need. Make 2 md raids and put > LVM on the 2nd (first for /boot) and use logicalvolumes for your > partitions... I believe that if /boot is on RAID1, that md partition has to be on one of the first two disks (eg hda, hdb)? Is there any problem with having /boot on a RAID1 partition across 4 disks as follows? /boot / (LVM) hda RAID1 RAID5 hdb RAID1 RAID5 hdc RAID1 RAID5 hdd RAID1 RAID5 What about swap? It is best on RAID1, RAID5, LVM, something else or doesn't matter? Mick