ReclaiMe Data Recovery Training

RAID Recovery Course - Overall Test

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

When to apply entropy analysis?

before content analysis
after content analysis
between zero and mirror analysis

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

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

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

What does content analysis help determine?

block size
RAID level
disk order

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

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

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

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

What is the first step in RAID recovery?

entropy analysis
mirror analysis
RAID configuration recovery
collecting all the information available about the case

Is it possible to recover data if one of the member disks in a RAID10 failed?

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

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