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RAID Recovery Course - Content Analysis Test
95-100% ratio of data similarity points to
ex-hotspare disk
mirror pair
different disks
Look at the picture on the right and guess the possible RAID level
RAID10
full RAID 5 with a hotspare
full RAID5
RAID 5 with a missing disk
What does parity analysis calculate?
percent of parity matches in each disk pair
percent of parity matches in disk set
percent of parity matches in each disk
Look at the picture and choose the possible variant
Disks {4,5,6} belong to one RAID; Disk 7 is a hotspare
Disks {4,5,7} belong to one RAID; Disk 6 is a hotspare
Disks {5,6,7} belong to one RAID; Disk 4 is a hotspare
60-80% ratio of data similarity points to
mirror pair
different disks
ex-hotspare disk or out-of-sync mirror
Check what content analysis in ReclaiMe Pro includes
analysis of different file types
ratio of zeros
ratio of files to folders
mirror analysis
Check the possible RAID levels if parity analysis gives you 0% parity both for full disk set and exclusion combinations
RAID5 with a hotspare disk
RAID6
Regular RAID5
RAID5 with a missing disk
RAID0
Ratio of zeros analysis is applied to
single disk
set of RAID disks
If you see several mirror pairs in mirror map, it points to
Ex-hotspare disk
RAID5
RAID10
RAID1
Look at the picture on the right and guess RAID level
3-disk RAID 5 with a hotspare
4-disk RAID 5 with one disk missing
full 4-disk RAID 5
RAID0
Next lesson - Parity Analysis
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