ReclaiMe Data Recovery Training

RAID Recovery Course - Overall Test

What does content analysis help determine?

RAID level
block size
disk order

Check what you can do with entropy analysis

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

Is it possible to recover data form a RAID0 in which one of the member disks failed?

yes, all the data can be recovered
no, for all practical purposes it is impossible since all you get are files no larger than block size
yes, but only half of the data can be recovered

If data recovered from a RAID is incorrect it means that

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

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

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

When to apply entropy analysis?

before content analysis
between zero and mirror analysis
after content 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
ratio of zeros, mirror analysis, parity analysis
parity analysis, ratio of zeros, mirror analysis

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