On 3/8/2013 10:08 AM, SilverTip257 wrote:
> On Fri, Mar 8, 2013 at 9:37 AM, Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>wrote:
>
>> 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@xxxxxxx>
>> 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@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
>>
> I would have expected the same after vgchange.
>
>
>> vgchange commands. Does RAID change things wrt LVM appareance to the
>> system?
>>
> No.
OK, I have just written off the disks as corrupt. I put in another pair with yet another raid LV on them. This time I was able to successfully mount the data.
Something like this:
After assembling the raid array from the two disks with
mdadm --assemble /dev/md125 /dev/sdc3 /dev/sdd3
[root@mickey ~]# cat /proc/mdstat
Personalities : [raid1]
md125 : active raid1 sdc3[0] sdd3[1]
2925020024 blocks super 1.0 [2/2] [UU]
[=>...................] resync = 8.5% (249426816/2925020024) finish=357.5min speed=124707K/sec
unused devices: <none>
[root@mickey ~]# vgscan
Reading all physical volumes. This may take a while...
Found volume group "rvg" using metadata type lvm2
Found volume group "VolGroup00" using metadata type lvm2
[root@mickey ~]# vgchange -a y
10 logical volume(s) in volume group "rvg" now active
2 logical volume(s) in volume group "VolGroup00" now active
[root@mickey ~]# pvscan
PV /dev/md125 VG rvg lvm2 [2.72 TB / 1.66 TB free]
PV /dev/sda2 VG VolGroup00 lvm2 [465.66 GB / 0 free]
PV /dev/sdb1 VG VolGroup00 lvm2 [465.75 GB / 0 free]
Total: 3 [3.63 TB] / in use: 3 [3.63 TB] / in no VG: 0 [0 ]
[root@mickey ~]# lvscan
inactive '/dev/rvg/lv00' [1.00 GB] inherit
inactive '/dev/rvg/lv08' [10.00 GB] inherit
inactive '/dev/rvg/lv09' [1000.00 GB] inherit
inactive '/dev/rvg/lv04' [20.00 GB] inherit
inactive '/dev/rvg/lv03' [2.00 GB] inherit
inactive '/dev/rvg/lv02' [4.00 GB] inherit
inactive '/dev/rvg/lv06' [40.00 GB] inherit
inactive '/dev/rvg/lv07' [10.00 GB] inherit
inactive '/dev/rvg/lv01' [5.00 GB] inherit
inactive '/dev/rvg/lv05' [512.00 MB] inherit
ACTIVE '/dev/VolGroup00/LogVol00' [925.75 GB] inherit
ACTIVE '/dev/VolGroup00/LogVol01' [5.66 GB] inherit
[root@mickey ~]# ls /dev/rvg
lv00 lv01 lv02 lv03 lv04 lv05 lv06 lv07 lv08 lv09
[root@mickey ~]# mount /dev/rvg/lv00 /mnt
[root@mickey ~]# ls /mnt
big dev lib media opt sbin sys usr
bin etc lib64 misc proc selinux tftpboot var
boot home lost+found mnt root srv tmp
[root@mickey ~]#
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
