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RAID Recovery Course - RAID Introduction Test
How data is distributed to disks in a JBOD
data is divided into blocks of the same size and then blocks are written to the disks
data is divided into blocks of different size and then blocks are written to the disks
in contiguous streams
How data is distributed to disks in a RAID5
in contiguous streams
data is divided into blocks of different size and then blocks are written to the disks
data is divided into blocks of the same size and then blocks are written to the disks
What is a minimum number of disks required to create a RAID?
3 disks
2 disks
1 disk
RAID is short for
Reliable Array of Inexpensive Disks
Redundant Array of Inexpensive Disks
Reliable Array of Independent Disks
Redundant Array of Independent Disks
On which disk or disks is RAID metadata stored?
on all member disks
on one particular member disk
on the first member disk
What typical values for block size in RAID?
4096 MB
up to 1 KB
up to 1 MB
Check those which are not the criteria applied for RAIDs
speed
fault-tolerance
size
level
endurance
Check those which can be RAID parameters
block pattern
disk order
start offset
block size
Which RAID levels are most often encountered in data recovery situations?
RAID10
Mirror,
RAID4
RAID5
RAID0
RAID6
More complex RAIDs have more parameters
false
true
Next lesson - RAID levels
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