I have MySQL master-slave replication setup in Amazon EC2. For the sake of resilience, I have set up LVM on RAID 10 array, on both master as well as slave. I have been using ec2-consistent-snapshot for some time now to take the snapshot from the slave instance.
So, I tried to create the disks from those snapshots and attach them to a new MySQL installation. Since the new installation would not recognise the LVM and RAID setup, I reactivated the LVM and RAID in the new instance using the following commands.
Scan the disks for RAID array members:
mdadm --examine --scan <comprising disks>
Reactivate the RAID array:
mdadm -A -s
Reactivate the lvm:
Since snapshotting took the backup of the
iblogfiles, I removed them for the fresh installation. MySQL would start normal.
Help me out of this