ReclaiMe Data Recovery Training
Partition Recovery Course - md-raid Test
What is the difference between 1.x versions of md superblock?
Superblock is always located before data
In what devices md-raid is commonly used?
Why earlier superblock versions can give you more information about a RAID?
because when NAS detects a disk failure, it no longer updates superblocks on them
because such superblocks are typically written to safe place
because such superblocks are typically not affected by a rebuild
md-raid can consist of other mad-raid arrays
The superblock part describing an array is
the same only on first and the last disks
different on each array member disk
the same on all array member disks
md-raid allows to create arrays without superblocks at all
When recovering md how you should sort superblocks?
by generation number
Superblock includes two significantly different parts; one describes a RAID and other – a specific disk
Check methods which can be used to determine a role for a disk
do entropy analysis, if RAID5
do parity analysis, if RAID5
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