On Thu, Jun 04, 2009 at 09:58:59PM +1000, Alex Samad wrote: > On Wed, Jun 03, 2009 at 10:53:52PM -0500, Zhengquan Zhang wrote: > > [snip] > > > > > > > My typical setup for a hd (the first 2 or 3 drives in the machine is > > > > > > /boot 500M > > > / 20G > > > LVM or raid device > > > > In that case, the first 2 or 3 drives have separate /boot and / but you > > only use /boot and / on one of them? > > no > > /dev/md0 => /dev/sda1 /dev/sdb1 /dev/sdc1 raid1 + spare => /boot > /dev/md1 => /dev/sda2 /dev/sdb2 /dev/sdc2 raid1 + spare => / > /dev/md2 => /dev/sda2 /dev/sdb2 /dev/sdc2 raid5 = pv => vg => lv's
Now I understand what you mean. So basically you do lvm on raid5 to get a balance between storage space and redundancy. > > > > > > > > > > I raid1 Partition on disk 1+2 and use disk 3 as hot spare. I do the same > > > for partition 2 > > > > > > > > > for partition 3 I group together all the disk's in raid1 or raid5 or > > > raid 6 and then allocate that to lvm and then make up swap /var/log/ > > > /home etc > > > > Now I figured that your point is never use LVM over / . and LVM over > > raid for other partitions. > > I try never to place / on a LVM > and to try and place LVM on some sort of raid So you use LVM on raid to help you better cope with hard drive failures. I understand now. Thanks Alex! -- Zhengquan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
