RAID Recovery Course - RAID Introduction Test

Can block size be 1 sector?

yes
no

Which of the following is the JBOD parameter set?

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

How data is distributed to disks in a RAID1

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

More complex RAIDs have more parameters

false
true

In the list, mark block-based RAIDs

RAID5
JBOD
RAID1
RAID0

Where is RAID metadata stored?

anywhere, depending on the implementation specifics
at the beginning of the member disk
at the end of the member disk

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

Check the reasonably acceptable RAID block sizes

4094 bytes
512 bytes
2048 bytes
128 KB

What is start offset?

offset at which RAID user data starts
offset at which RAID metadata starts

Is there a special single standard for RAID metadata?

no
yes