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RAID Recovery Course - RAID Introduction Test
RAID criteria are usually placed in vertices of
RAID square
RAID pentagon
RAID triangle
Number in RAID charts is used to denote
Q parity blocks
P parity blocks
data blocks
In the list, mark block-based RAIDs
RAID5
RAID1
JBOD
RAID0
Which of these sets of criteria are commonly applied to RAID arrays?
speed, size, and fault-tolerance
member disk count, speed, and fault-tolerance
speed, size, and endurance
Check non-block RAIDs in the list
RAID5
Span
RAID0
Mirror
Is there a special single standard for RAID metadata?
yes
no
Is there a RAID meeting all the RAID criteria simultaneously?
no
yes
Should start offset be equal to block size?
no
yes
Check those which can be RAID parameters
disk order
block size
start offset
block pattern
Speed improvement is achieved due to the fact that:
each member disk in RAID is faster than a regular hard drive
data on a RAID is not fragmented
two data blocks on two disks can be read in one operation
Next lesson - RAID levels
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