ReclaiMe Data Recovery Training

Partition Recovery Course - md-raid Test

md-raid can consist of other mad-raid arrays

true
false

Superblock includes two significantly different parts; one describes a RAID and other – a specific disk

false
true

Check what can be designated as "md"

software RAID metadata
disks from a NAS
NASes using Linux
driver

Check what md superblock versions exist

2.x
1.x
0.8
0.9

Superblock is always located before data

true
false

Check methods which can be used to determine a role for a disk

do parity analysis, if RAID5
do entropy analysis, if RAID5
guess

If you know that array member disks, say in RAID 5, are all of the same size, then

the disks will use the same partition layout
md superblocks are located at the same offset either in the beginning or in the end of the disks depending on superblock version
md superblocks are located at the same offset in the end of the disks
md superblocks are located at the same offset in the beginning of the disks

Where are copies of superblock stored?

only on the first member disk in the end
only on the first member disk in the beginning
on each array disk either in the beginning of the disk or in the end
on each array disk always in the beginning

Why earlier superblock versions can give you more information about a RAID?

because such superblocks are typically not affected by a rebuild
because such superblocks are typically written to safe place
because when NAS detects a disk failure, it no longer updates superblocks on them

Superblock can be located after data

false
true

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