I have a 2 disk mirror raid built with mdadm lying on a LV:
/dev/sda -> /dev/sda1 /dev/sda2
/dev/sdb -> /dev/sdb1 /dev/sdb2
/dev/md0 106MB boot partition formed by /dev/sda1 & /dev/sdb1
/dev/md1 159,9GB root partition formed by /dev/sda2 & /dev/sdb2
# lvs
LV VG Attr LSize
rootvol vglinux -wi-ao 100.00G
swapvol vglinux -wi-ao 13.66G
After some problems with power supply, which may be the causes of the SATA bus reset, I've found this message at boot:
Setting up Logical Volume Management: Found duplicate PV CKbmcEG1VfGppXJpRK1K6Oqes2KRi6mv: using /dev/md127 not /dev/md1
2 logical volume(s) in volume group "vglinux" now active
[...]
[...]
Starting monitoring for VG vglinux: Found [...same message...]
2 logical volume(s) in volume group "vglinux" monitored
Then the system boots up and I have my mirror degraded as follows:
#cat /proc/mdstat
md126 : active raid1 sda1[1]
104320 blocks [2/1] [_U]
md127 : active raid1 sda2[1]
156175808 blocks [2/1] [_U]
md0 : active raid1 sdb1[0]
104320 blocks [2/1] [U_]
md1 : active raid1 sdb2[0]
156175808 blocks [2/1] [U_]
Additional infos:
# uname -a
2.6.18-194.el5
How can I fix this (without losing anytingh

Thank you,
Steve