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RAID Recovery Course - RAID Introduction Test
Check those which can be RAID parameters
disk order
block pattern
block size
start offset
Can block size be 1 sector?
yes
no
What represents member disks in the RAID block layout diagrams?
rows
columns
table cells
RAID is short for
Reliable Array of Independent Disks
Redundant Array of Inexpensive Disks
Redundant Array of Independent Disks
Reliable Array of Inexpensive Disks
Speed improvement is achieved due to the fact that:
two data blocks on two disks can be read in one operation
each member disk in RAID is faster than a regular hard drive
data on a RAID is not fragmented
How data is distributed to disks in a RAID1
in contiguous streams
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
Is it obligatory to use identical disks to create a RAID?
no
yes
Check those which are not the criteria applied for RAIDs
level
endurance
fault-tolerance
size
speed
Which of these sets of criteria are commonly applied to RAID arrays?
speed, size, and endurance
member disk count, speed, and fault-tolerance
speed, size, and fault-tolerance
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
Next lesson - RAID levels