ReclaiMe Data Recovery Training

RAID Recovery Course - Entropy Analysis Test

How to do entropy analysis

launch the analysis and wait until ReclaiMe Pro gives you the correct RAID configuration
change settings to make pictures match expectations

Look at the picture on the right and choose the appropriate description

selected number of disks is wrong
selected block size is less than the actual block size
selected block size is larger than the actual block size

Look at the picture on the right and choose the most complete configuration description

4-disk RAID5 with one disk missing, 16 KB block size
full 4-disk RAID5, 64 KB block size
full 4-disk RAID5, 16 KB block size
full 4-disk RAID5, 32 KB block size

Choose that which has the lowest entropy

video
text
parity in a RAID

Choose to what you should apply the entropy analysis

full disk set
each disk separately

What has the higher entropy?

data block in a RAID
parity block in a RAID

Entropy is a measure of data randomness

true
false

Choose the correct statement

ordered data has high entropy
random data has high entropy

What analysis gives you a visual representation of parity blocks?

ratio of zeros analysis
entropy analysis
parity analysis

Next lesson - Parity Analysis

We have a mailing list in which we talk about interesting cases we encounter and share some tips and tricks.