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RAID Recovery Course - Entropy Analysis Test
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
When to apply entropy analysis?
between zero and mirror analysis
after content analysis
before content analysis
Look at the picture on the right and choose the most complete configuration description
full 3-disk RAID5, 16 KB block size, topmost disk doesn't belong to the RAID
4-disk RAID5 with one disk missing, 16 KB block size
full 4-disk RAID5, 32 KB block size
Check RAID types to which entropy analysis is applied
JBOD
RAID10
RAID5
RAID6
RAID1
RAID0
Entropy is a measure of data randomness
true
false
Look at the picture on the right and choose the most complete configuration
full 4-disk RAID5, 128 KB block size
full 4-disk RAID6, 128 KB block size
full 4-disk RAID5, 256 KB block size
full 4-disk RAID6, 256 KB block size
Look at the picture on the right and choose the appropriate description
selected block size is less than the actual block size
selected number of disks is wrong
selected block size is larger than the actual block size
Check what you can get with entropy analysis
block size
spot asynchronous RAIDs
spot synchronous RAIDs
disk order ideas
original number of disks
How to do entropy analysis
change settings to make pictures match expectations
launch the analysis and wait until ReclaiMe Pro gives you the correct RAID configuration
Next lesson - Parity Analysis
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