ReclaiMe Data Recovery Training

RAID Recovery Course - RAID Levels Test

What ensures redundancy in a RAID1E?

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

RAID6 is

redundant non-block array
non-redundant non-block array
non-redundant block array
redundant block array

Check RAID level utilizing dedicated disk to store parity

RAID4
RAID5
RAID6

What is hotspare?

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

Is it possible to recover data if half of the RAID10 member disks failed?

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

RAID10 is

redundant non-block array
redundant block array
non-redundant block array
non-redundant non-block array

What ensures redundancy in a RAID6?

calculating two special functions over data blocks
there is no redundancy in a RAID6
storing two copies of data
calculating a special function over data blocks

Check what delayed parity means

parity blocks are delayed within one of the member disks
parity blocks are larger than data blocks
data blocks are larger than parity blocks

What controllers use delayed parity?

Promise
HP SmartArray
LSI

Check RAID levels which may utilize delayed parity

RAID5
RAID4
RAID10
RAID6

Next lesson - Content analysis

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