ReclaiMe Data Recovery Training

RAID Recovery Course - Overall Test

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

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

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

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

When to apply parity analysis?

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

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

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

Where is RAID metadata stored?

at the end of the member disk
at the beginning of the member disk
anywhere, depending on the implementation specifics

What does content analysis help determine?

block size
disk order
RAID level

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

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

Check what you can do with entropy analysis

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

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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