ReclaiMe Data Recovery Training

RAID Recovery Course - Overall Test

Is it possible to recover data if one of the member disks in a RAID5 failed?

yes, all data is recoverable
yes, but only part of the data is recoverable
no
depends on which disk failed

If data recovered from a RAID is incorrect it means that

RAID configuration recovery failed
filesystem recovery failed
both filesystem or RAID recovery might fail, investigation is needed

Look at the picture on the right and guess the possible RAID level

RAID 5 with a missing disk
Full RAID5
Full RAID 5 with a hotspare
RAID10

When to apply entropy analysis?

before content analysis
between zero and mirror analysis
after content analysis

What is the first step in RAID recovery?

collecting all the information available about the case
RAID configuration recovery
mirror analysis
entropy analysis

When you should do parity analysis?

after entropy analysis
when content analysis is done but RAID level is still unknown
always

What is the correct order of the content analysis stages in ReclaiMe Pro?

mirror analysis, ratio of zeros, parity analysis
parity analysis, ratio of zeros, mirror analysis
ratio of zeros, mirror analysis, parity analysis

What information about RAID you can get just by looking at the disks in Disk Management?

idea about RAID level
block size
idea about first disk

Check what you can do with entropy analysis

detect the first disk in the RAID
spot the disks which do not form a parity-based array
spot the disks which do not belong to the RAID in question
notice that start offset doesn't equal zero

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