ReclaiMe Data Recovery Training

RAID Recovery Course - RAID Levels Test

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

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

Is it possible to recover data if more than one member disk in a RAID5 failed?

no
yes, but it depends on which disks failed
yes, all data is recoverable

Check RAID level utilizing dedicated disk to store parity

RAID4
RAID5
RAID6

What is hotspare?

blank disk already installed in a RAID in anticipation of a member disk failure
disk storing a copy of parity data
disk storing a copy of RAID data

What minimum disk number is required for a RAID1E?

five
three
two
four

Choose the correct statement relating to RAID5E

hotspare blocks are integrated in the end of RAID
hotspare blocks are reserved on a standalone hard drive
hotspare blocks are evenly spread across array member disks

Choose the correct statement relating to RAID5EE

hotspare blocks are evenly spread across array member disks
hotspare blocks are integrated in the end of RAID
hotspare blocks are reserved on a standalone hard drive

What you can get with a JBOD?

speed improvement
large capacity
speed improvement and capacity
fault tolerance

What ensures redundancy in a RAID1E?

there is no redundancy in a RAID1E
storing two copies of data
calculating a special function over data blocks

Check the correct statement relating to a symmetric RAID5

in a row, data blocks always start on the first disk
in a row, data blocks always start after parity block

Next lesson - Content analysis

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