RAID Recovery Course - RAID Introduction Test

Which of the following is the JBOD parameter set?

start offset, block size
start offset, disk order
block size, disk order

Check non-block RAIDs in the list

RAID5
RAID0
Span
Mirror

Is it obligatory to use identical disks to create a RAID?

no
yes

Can block size be 1 sector?

no
yes

More complex RAIDs have more parameters

false
true

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

Speed improvement is achieved due to the fact that:

two data blocks on two disks can be read in one operation
data on a RAID is not fragmented
each member disk in RAID is faster than a regular hard drive

In the list, mark block-based RAIDs

RAID0
JBOD
RAID5
RAID1

Should start offset be equal to block size?

yes
no

What type of the device can implement exotic RAIDs?

high-end hardware
software
low-end hardware