ReclaiMe Data Recovery Training

Partition Recovery Course - md-raid Test

Check what some NASes can do on the good disks in case of a NAS failure

change array block size
erase some user data
spoil md superblocks
destroy GPT partitions

In what devices md-raid is commonly used?

Windows Servers
NASes
DASes

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

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

What is the difference between 1.x versions of md superblock?

superblock location
superblock format
superblock configuration

Check what md superblock versions exist

0.8
2.x
0.9
1.x

Superblock can be located after data

false
true

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 in the beginning of the disks
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

How the number of a disk in the array is called in md-raid?

disk function
disk identifier
role

md-raid allows to create arrays without superblocks at all

false
rue

The main component of md metadata is

superblock
header
i-node
GPT or MBR table

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