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RAID Recovery Course - Overall Test
Check what ratio of zeros helps exclude
damaged disks
RAID5 disks
stray disks
blank disks
hotspare disks
Look at the picture on the right and guess the possible RAID level
Full RAID5
RAID10
RAID 5 with a missing disk
Full RAID 5 with a hotspare
If data recovered from a RAID is incorrect it means that
filesystem recovery failed
RAID configuration recovery failed
both filesystem or RAID recovery might fail, investigation is needed
When you should do parity analysis?
always
when content analysis is done but RAID level is still unknown
after entropy analysis
When to apply entropy analysis?
between zero and mirror analysis
before content analysis
after content analysis
What does content analysis help determine?
block size
disk order
RAID level
What information about RAID you can get just by looking at the disks in Disk Management?
idea about first disk
block size
idea about RAID level
NASes only use software RAID
true
false
When to apply parity analysis?
between zero and mirror analysis
after 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 RAID6
Full RAID 6 with a hotspare
RAID 5 with a blank disk
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