ReclaiMe Data Recovery Training

RAID Recovery Course - RAID Levels Test

Check how data can be distributed in a RAID?

discretely – data is cut into blocks, blocks are written to all the disks randomly
discretely – data is cut into blocks, blocks are written to all the disks in a certain pattern
contiguously over arrays member disks one by one

What minimum number of disks is required for a RAID1?

one
four
three
two

Is it possible to recover data if two member disks in a RAID6 failed?

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

What is hotspare?

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

What is an alternative name for a RAID1?

Stripe set
JBOD
Mirror
Span

Check RAID levels which may utilize delayed parity

RAID6
RAID4
RAID10
RAID5

What RAID type is shown on the right?

JBOD
RAID5
RAID0
RAID1

Choose the correct statement relating to RAID5EE

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

What ensures redundancy in a RAID0?

there is no redundancy in a RAID0
calculating a special function over data blocks
storing two copies of data

What minimum number of disks is required for a JBOD?

two
three
one
four

Next lesson - Content analysis

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