ReclaiMe Data Recovery Training

Partition Recovery Course - md-raid Test

Superblock can be located after data

true
false

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

superblock configuration
superblock format
superblock location

md-raid can consist of other mad-raid arrays

true
false

Where are copies of superblock stored?

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

The superblock part describing a particular disk is

the same on all array member disks
the same only on adjacent disks
different on each array member disk

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

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

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

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
the disks will use the same partition layout
md superblocks are located at the same offset in the beginning of the disks

md-raid allows to create arrays without superblocks at all

false
rue

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

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

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