ReclaiMe Data Recovery Training

RAID Recovery Course - Overall Test

What does content analysis help determine?

RAID level
disk order
block size

When you should do parity analysis?

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

NASes only use software RAID

true
false

What is the recommended approach to check the quality of RAID recovery

folder tree check is enough
check many small files, smaller or equal to block size
check large files, larger than several block sizes

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

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
yes, all the data can be recovered

When to apply entropy analysis?

between zero and mirror analysis
before content analysis
after content analysis

When to apply parity analysis?

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

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

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

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

Full RAID 6 with a hotspare
RAID 5 with a blank disk
Full RAID6
RAID6 with a missing disk

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