On 03/08/2013 09:21 AM, Harold Pritchett wrote: > On 3/8/2013 8:57 AM, Robert Moskowitz wrote: >> On 03/08/2013 08:07 AM, SilverTip257 wrote: >>> On Thu, Mar 7, 2013 at 10:54 PM, Harold Pritchett <harold at uga.edu> wrote: >>> >>>> On 3/7/2013 10:10 PM, Stephen Harris wrote: >>>>> On Thu, Mar 07, 2013 at 09:54:59PM -0500, Harold Pritchett wrote: >>>>>> What other information do I need which may be available? >>>>> What does 'vgscan' say? 'vgchange -a y' ? >>>>> >>>> [root at mickey www]# vgscan >>>> Reading all physical volumes. This may take a while... >>>> Found volume group "VolGroup00" using metadata type lvm2 >>>> >>> Do both Volume Groups on those two sets of disks have the same name? >>> VolGroup00 >> This is all to common an issue. I make a point that all LVMs are >> uniquely named. >> > Actually, no. The VolGroup00 name is associated with the running system. It's the default name when you install CentOS with the default option. The vol group on the other disks > is "vg0" and is the name I used when I created the system several years ago. I would have expected that to show as a result of the vgscan and vgchange commands. Does RAID change things wrt LVM appareance to the system?