On Wed, Apr 22, 2015 at 12:28:26AM +0200, Jean-Yves LENHOF wrote: > Package: debian-installer > Severity: normal > Tags: d-i > > Dear Maintainer, > > > I created a virtual server with 2 disks of the same size. (Problem wil > be the same on a physical server with 2 disks of the same size) > I did a minimum installation with : > > - a partition on the whole disk on each disk of type LVM. (/dev/vda1, > /dev/vda2) > - a volume group with name rootvg with /dev/vda1 > - Everything on lvm, with /dev/rootvg/slashlv mounted on / and > /dev/rootvg/swaplv for swap (a minimum partitioned system, I create more > logical volume on my servers) > - grub on /dev/vda > And did a reboot after the installation... > I can work on the server without problem... > > After a successul login under root, I did : > - vgextend /dev/rootvg /dev/vdb1 > - lvconvert --type raid1 -m 1 /dev/rootvg/slashlv > - lvconvert --type raid1 -m 1 /dev/rootvg/swaplv > - wait for the raid to be completely rebuilded (I checked with the "lvs" > command)
Whyever would you use lvm raid rather than md raid with lvm on top? As far as I understand it, lvm raid is very inflexible and makes it hard to ever make changes to the lvm in the future, while if you use md raid you are using something that is very flexible as raid and can easily be extended, and lvm on top of that is very flexible too. Basically your chosen setup is very unusual, and as far as I understand it highly discouraged. It will also be very hard to find anyone to help you if there are problems because it is so unusual (the normal setup works better and makes more sense, so that is what almost everyone uses). -- Len Sorensen -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
