[linux-lvm] Missing Logical Volumes
G Crowe
gclvmlist at crowie.net
Fri Dec 19 23:07:38 UTC 2014
No, this didn't work.
[root at host1 ~]# vgchange -ay array1
29 logical volume(s) in volume group "array1" now active
And the missing /dev/mapper files were not created (I left one LV
un-fixed to try any suggested solutions)
All of the other LVs in the same VG are completely usable, so it doesn't
seem to be a problem with the VG as a whole.
Thanks
GC
On 20/12/2014 3:46 AM, Jack Waterworth wrote:
> It sounds like the VG was not activated. You can activate it with the
> following command:
>
> # vgchange -ay array1
>
> Jack Waterworth, Red Hat Certified Architect
> Senior Storage Technical Support Engineer
> Red Hat Global Support Services ( 1.888.467.3342 )
>
> On 12/19/2014 05:32 AM, G Crowe wrote:
>> After rebooting, some of my logical volumes did not have device files.
>>
>> /dev/array1/LVpics
>> and
>> /dev/mapper/array1-LVpics
>> did not exist but the output of "lvdisplay" said that the volume was
>> available (see below).
>>
>> vgscan did not resolve the problem.
>>
>> I was able to regain access to the LV by renaming it, then renaming
>> it back...
>> [root at host1 ~]# lvrename /dev/array1/LVpics /dev/array1/LVpicsnew
>> Renamed "LVpics" to "LVpicsnew" in volume group "array1"
>> [root at host1 ~]# lvrename /dev/array1/LVpicsnew /dev/array1/LVpics
>> Renamed "LVpicsnew" to "LVpics" in volume group "array1"
>>
>> There are 29 LVs in the VG and 25 of them came up OK and 4 had this
>> problem. Note that there is only one single PV (a RAID6 array) in the
>> VG, and there are two VGs on the machine.
>>
>> Is this expected behaviour, or is it something I should be worried
>> about?
>>
>>
>>
>> --- Logical volume ---
>> LV Path /dev/array1/LVpics
>> LV Name LVpics
>> VG Name array1
>> LV UUID WH7g9u-Ls7J-fIpQ-Hk2p-mUuH-QRKf-9uxcM2
>> LV Write Access read/write
>> LV Creation host, time example.com, 2013-11-26 07:29:51 +1100
>> LV Status available
>> # open 0
>> LV Size 350.00 GiB
>> Current LE 89600
>> Segments 2
>> Allocation inherit
>> Read ahead sectors auto
>> - currently set to 256
>> Block device 253:9
>>
>>
>> I am running Fedora 19 with kernel 3.11.9-200.fc19.x86_64
>>
>>
>> Thanks
>>
>> GC
>>
>> _______________________________________________
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>> linux-lvm at redhat.com
>> https://www.redhat.com/mailman/listinfo/linux-lvm
>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
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