I have an unexpected error reading an LV: # mount -a mount: /dev/db_vol/db_dir is not a valid block device I'd like help recovering the data on the partition. Information about the circumstance under which I first got the error, and some addtional info are attached below. The system is a RH7.2 system installed with the XFS1.0.2a installer and updated to the XFS CVS kernel from April 4. (LVM version in kernel with LVM tools from lvm-tools-1.0.1rc4-2 rpm). Thanks for the help, Murthy Addtional information follows: I have a VG called "db_vol" and an LV within called "db_dir" on a hardware RAID-5 volume hanging off a Mylex Acceleraid 352 raid controller (linux DAC960 driver). This volume has been up and functional, with an XFS filesystem for a while (the last VGDA backup is from March 21). Yesterday, I added a new RAID set and did a test on the new volume (defined a single (linux native) primaly partition and XFS filesystem on the partition then mounted the partition to /mnt/tempmnt) with "time dd=/dev/zero of=/mnt/tempmnt/mungie.txt bs=512k count=10000". This led to my system slowing down and at logout I got an error message saying init was spawning ttys too fast. I power-cycled my machine after a short wait, with gritted teeth, and on the XFS check message, I chose "yes" to recheck the integrity of the XFS filesystems. The unexpected error message has been produced since then. vgdisplay output for the volume is: # /sbin/vgdisplay -d db_vol <1> lvm_check_kernel_lvmtab_consistency -- CALLED <22> vg_check_active_all_vg -- CALLED <333> vg_status_get_count -- CALLED <333> vg_status_get_count -- LEAVING with ret: 0 <22> vg_check_active_all_vg -- LEAVING with ret: -331 ptr: (null) <22> lvm_tab_vg_check_exist_all_vg -- CALLED <333> lvm_tab_read -- CALLED <333> lvm_tab_read -- LEAVING with ret: 0 data: 804B4A0 size: 1 <22> lvm_tab_vg_check_exist_all_vg -- LEAVING with ret: 0 <1> lvm_check_kernel_lvmtab_consistency -- LEAVING with ret: 1 <1> lvm_get_iop_version -- CALLED <22> lvm_check_special -- CALLED <22> lvm_check_special -- LEAVING <1> lvm_get_iop_version -- AFTER ioctl ret: 0 <1> lvm_get_iop_version -- LEAVING with ret: 10 <1> vg_check_name -- CALLED with VG: db_vol <22> lvm_check_chars -- CALLED with name: "db_vol" <22> lvm_check_chars -- LEAVING with ret: 0 <1> vg_check_name -- LEAVING with ret: 0 <1> lvm_tab_vg_check_exist -- CALLED with vg_name: "db_vol" <22> vg_check_name -- CALLED with VG: db_vol <333> lvm_check_chars -- CALLED with name: "db_vol" <333> lvm_check_chars -- LEAVING with ret: 0 <22> vg_check_name -- LEAVING with ret: 0 <22> lvm_tab_read -- CALLED <22> lvm_tab_read -- LEAVING with ret: 0 data: 804B4A0 size: 1 <1> lvm_tab_vg_check_exist -- LEAVING with ret: 0 vgdisplay -- volume group "db_vol" not found When I check the db_vol.conf file in /etc/lvmconf, I get "vgcfgrestore -- ERROR: different structure size stored in "/etc/lvmconf/db_vol.conf" than expected in file vg_cfgrestore.c [line 120]" (full command output below). /sbin/vgcfgrestore -t -d -n db_vol -ll <1> vg_check_name -- CALLED with VG: db_vol <22> lvm_check_chars -- CALLED with name: "db_vol" <22> lvm_check_chars -- LEAVING with ret: 0 <1> vg_check_name -- LEAVING with ret: 0 <1> lvm_get_iop_version -- CALLED <22> lvm_check_special -- CALLED <22> lvm_check_special -- LEAVING <1> lvm_get_iop_version -- AFTER ioctl ret: 0 <1> lvm_get_iop_version -- LEAVING with ret: 10 <1> lvm_lock -- CALLED <22> lvm_check_special -- CALLED <22> lvm_check_special -- LEAVING <1> lvm_lock -- LEAVING with ret: 0 <1> lvm_dont_interrupt -- CALLED <1> lvm_dont_interrupt -- LEAVING <1> vg_cfgrestore -- CALLED <22> vg_check_name -- CALLED with VG: db_vol <333> lvm_check_chars -- CALLED with name: "db_vol" <333> lvm_check_chars -- LEAVING with ret: 0 <22> vg_check_name -- LEAVING with ret: 0 vgcfgrestore -- ERROR: different structure size stored in "/etc/lvmconf/db_vol.conf" than expected in file vg_cfgrestore.c [line 120] <1> vg_cfgrestore -- LEAVING with ret: -328 <1> lvm_error -- CALLED with: -328 <1> lvm_error -- LEAVING with: "vg_cfgrestore(): read" vgcfgrestore -- ERROR "vg_cfgrestore(): read" restoring volume group "db_vol" <1> lvm_unlock -- CALLED <1> lvm_unlock -- LEAVING with ret: 0 _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
