[CentOS] "No free sectors available" while try to extend logical volumen in a virtual machine running CentOS 6.5

[Robert Nichols]

On 10/28/2014 07:57 AM, reynierpm at gmail.com wrote:

> # lvs
>    /dev/root: read failed after 0 of 4096 at 27522957312: Input/output error
>    /dev/root: read failed after 0 of 4096 at 27523014656: Input/output error
>    Couldn't find device with uuid vSbuSJ-o1Kh-N3ur-JYkM-Ktr4-WEO2-JWe2wS.
>    LV      VG           Attr       LSize  Pool Origin Data%  Move Log
> Cpy%Sync Convert
>    lv_root vg_devserver -wi-ao--p- 25.63g
>    lv_swap vg_devserver -wi-ao----  3.91g

Something very strange is going on.  /dev/root is presumably
/dev/mapper/vg_devserve-lv_root.  It is odd that LVM should be looking
inside that LV for another PV, and disturbing that there should be an
I/O error at those offsets, which are within the 27523022848 byte size
of /dev/mapper/vg_devserver-lv_root .

Please post the output from
    ls -l /dev/root /dev/mapper
and the contents of file /etc/lvm/backup/vg_devserver .

-- 
Bob Nichols     "NOSPAM" is really part of my email address.
                 Do NOT delete it.