Hi
I have setup software RAID two years ago using FC3 using the graphical installer (RAID1). In the mean time I installed CENTOS4.5 and everything is running fine. At least that was my perception. It now turns out that raid is not working and that LVS just finds 4 partitions from four disks and that's it.:
/dev/sda2 VolGroup00 lvm2 a- 94.88G 0 /dev/sdb1 VolGroup00 lvm2 a- 94.94G 10.00G /dev/sdc1 VolGroup00 lvm2 a- 94.94G 74.94G /dev/sdd1 VolGroup00 lvm2 a- 94.94G 70.81G
These are 4 disk of each 200GB, and the disks have these partitions:
Using /dev/sda (parted) print Disk geometry for /dev/sda: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 101.975 primary ext3 boot 2 101.975 97284.243 primary lvm 3 97284.243 194474.355 primary raid Disk geometry for /dev/sdb: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 97237.177 primary boot, lvm 2 97237.178 194474.355 primary raid Disk geometry for /dev/sdc: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 97237.177 primary boot, lvm 2 97237.178 194474.355 primary raid Disk geometry for /dev/sdd: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 97237.177 primary boot, lvm 2 97237.178 194474.355 primary raid
So my feeling is that I need to setup the RAID again, but I don't want to make any mistakes here, since this is a live system working fine. I tried to read the mdadm manual but it's not quit clear to me what to do. # mdadm -A --scan -v mdadm: No arrays found in config file
Shows I have to do more. The previous fedora installation is still around, but is doesn't contain a /etc/mdadm.conf file.
Can anyone help me with some steps to take to get it running again. I do have backups, but if things go wrong restoring takes several hours.
Thanks, Theo
PS. Send for the third time. Could it be that posting is limited to email addresses that are subscribed to the list?