On Thu, 6 Sep 2007, William Shu wrote:
<snip snip>
> In non-lvm file system you know where things are, and dd, fdisk and 
> other commands let you take your chances. In lvm, I am lost and given 
> the lagacy software in various partitions of the machine (a pentium II) 
> I cannot add more disks or use RAID.

I should have said that a couple of years ago I was of the opinion that 
LVM was over-complicated and seemed pointless...

Part of my reason to avoid it for so long was that I'd had some bad 
experiences with similar setups on OSF1 and HPUX (tools not working 
properly, loss of data, lack of support etc)

When I first started trying to actually use the linux LVM I was still 
confused and bewildered by some of the ways things worked.

Then suddenly one day it all *just made sense*.

My main problem now is doing the conversions from all the previous ways we 
arranged disks -- some of our servers date from before my 'conversion' and 
still need to be fixed.

Tomorrow I'm working on one server to add another 2TB of disk but because 
it is not lvm I need to shuffle the existing ~1.4TB of data first...  In 
contrast I added 3.6TB to a newer server (which is using LVM) a few weeks 
ago and didn't even need to unmount the file-systems let alone reboot it!

  -- Jon