ReclaiMe Data Recovery Training

RAID Recovery Course - Overall Test

What does content analysis help determine?

RAID level
disk order
block size

Is it possible to recover data if one of the member disks in a RAID10 failed?

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

If data recovered from a RAID is incorrect it means that

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

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

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

When to apply parity analysis?

before zero and mirror analysis
after entropy analysis
after zero and mirror analysis
between zero and mirror analysis

When to apply entropy analysis?

after content analysis
between zero and mirror analysis
before content analysis

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

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

Check what you can do with entropy analysis

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

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

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

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