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.