[K12OSN] LVM Raid 1

[Ascension Tech]

Thanks Paul.  But about this point: 

> First question - did you put your /boot partition on a raid device? If
> not - you probably should have because if the sole disk with the boot
> device dies ... you won't be able to boot the other disk.

Not for nothin'  ;) but Robert Arkiletian told me to do the opposite of that.  
  





On Fri, 17 Dec 2004 15:48:19 -0500, Paul Pianta <pantz at lqt.ca> wrote:
> On Fri, 2004-12-17 at 15:19 -0500, Ascension Tech wrote:
> > Thanks all for getting me out my recent mess.  I recovered what I need
> > and I'm reinstalling.  This time I wanted to use LVM + raid1 on my two
> > drives instead of just raid.  Here's what I have so far. Created
> > /boot>  created dual swaps at the end of the drives>  I made 2 raid
> > partitions with remaining space on each > created md0 as an LVM with
> > raid1> created volume groups for / and /home.    Is this how you do it
> > or do you make VGs for /root /var /usr/ /tmp /opt etc. .?
> 
> Hi Peter,
> 
> First question - did you put your /boot partition on a raid device? If
> not - you probably should have because if the sole disk with the boot
> device dies ... you won't be able to boot the other disk.
> 
> So here is what I do ...
> 
> 1. On the first drive
> - make a 100 MB partition as a RAID device (for /boot later on)
> - make a X MB partition as a RAID device (for swap later on)
> - make a partition that fills the rest of the disk as a RAID device (for
> your volume group later on)
> 
> 2. Replicate everything you did on that first drive with the second
> drive.
> 
> 3. Choose RAID and setup 3 RAID 1 devices - the 100MB partition, the
> swap partition, and the big partition that fills the rest of the drive.
> 
> 4. If the 100MB RAID device happened to get called md0 - format it ext3
> and set the mount point at /boot.
> 
> 5. If the swap RAID device happened to get called md1 - format it as
> swap.
> 
> 6. Click the LVM button and make a 'volume group' out of the remaining
> RAID device (probably md2 and it should be rather large!). I find it
> helpful to call it vg0 as the redhat naming scheme puts me off.
> 
> 7. In the same dialog as where you created vg0 - you can also create
> your 'logical volumes' that are created within your new 'volume group'
> ie. vg0. Click add and then it is here that you add 'lv0' that you would
> mount /, and also add 'lv1' which you would mount at /home.
> 
> 8. You are free to choose the sizes for your / and /home logical volumes
> but I suggest you leave a bit of space 'unused' so that if you find
> later on that you need to add some GB's to either / or /home - you will
> have some room to expand!
> 
> I'm off for the weekend so if you need any clarification - I'm sure the
> crew on this list will be able to help you out ...
> 
> until Monday ...
> 
> --
> pAntZ
> 
> Before you criticize someone, walk a mile in their shoes. That way, when
> you do criticize them, you're a mile away and you have their shoes!
> 
>