On 28/05/12 19:40, tariq wali wrote:
Hi,
We had an OS crash on x86_64 CentOS , LVM2 and it had 6TB
LUN via IP SCSI SAN mounted to it and after the OS reinstall
on a crash we had hard time to mount the original SAN volume
as you can imagine 6TB of marketing data with 3 LVM partitions
as data data1 and data2 . After troubleshooting almost for a
day I was able to get the LVM metadata using dd from the SAN
LUN /dev/sdd1 which I used to recreate and restore all LVM
partitions back to original state , we sure became the raving
fans of LVM today ! however after all the recovery I see this
annoying warning each time I execute any of the lvm commands
..
lvs
Found duplicate PV XtGmeFOiCTWpLBckKZKlGtYKPVdBgVJn:
using /dev/sdd1 not /dev/sdc1
LV VG Attr LSize Origin Snap% Move Log Copy%
Convert
data vg0 -wi-ao 2.00T
data1 vg0 -wi-ao 2.00T
data2 vg0 -wi-ao 1.44T
1) The the same lun presented to the computer more than once? If
this is a deliberate thing for redundancy then your need to setup
multipath to take advantage use the devices in /dev/mapper of this
and mask off the raw /dev/sd? devices in your /etc/lvm/lvm.conf
2) Did you copy all the data from one disk to another? if so is the
old disk still available to the system?
3) Check you lun masking.
James
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