ReclaiMe Data Recovery Training

RAID Recovery Course - Content Analysis Test

1-5% ratio of data similarity points to

mirror pair
different disks
ex-hotspare disk

Parity test for a full regular RAID5 gives

100% parity in full disk set and 0% parity in all combinations with one disk excluded
0% parity in full disk set and 0% parity in all combinations with one disk excluded
0% parity in full disk set and 100% parity in all combinations with one disk excluded

What does parity analysis calculate?

percent of parity matches in disk set
percent of parity matches in each disk
percent of parity matches in each disk pair

Check what content analysis in ReclaiMe Pro includes

ratio of files to folders
mirror analysis
ratio of zeros
analysis of different file types

If you see several mirror pairs in mirror map, it points to

Ex-hotspare disk
RAID5
RAID1
RAID10

Rows in a parity-based RAID are always even

true
false

If you see one mirror pair in mirror map, it points to

RAID5
RAID1
Ex-hotspare disk
RAID10

If you see one partial mirror pair (60-80%) in mirror map, it points to

RAID5
RAID10
RAID1
Ex-hotspare disk

Is it needed to know RAID level to recover data?

no
yes
only if you need a full scale RAID recovery (RAID metadata is severely damaged)

Next lesson - Parity Analysis

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