RAID Flashcards
Name RAID 0?
Striping
Redundancy of RAID 0?
- RAID 0 has 0 redundancy.
Minimum disks required for RAID 0?
2
Explain RAID 0
The data stored is split between 2 or more physical drives
Performance of RAID 0
Data is written quickly as it is split over multiple drives
Name RAID 1
Mirroring
Redundancy of RAID 1
Array will still work as long as one drive is operational
Minimum disks require for RAID 1?
2
Explain RAID 1
The data stored is duplicated to 2 or more physical drives
Performance of RAID 1
High disk usage as files are duplicated on multiple drives.
Name RAID 5
Striping with Parity
Redundancy of RAID 5
Needs all but 1 drive operational
Minimum disks required for RAID 5
3
Explain RAID 5
File blocks are striped, along with a parity block.
Performance of RAID 5
Efficient use of disk space. Files are not duplicated, but space is still used for parity
Name RAID 10 (1+0)
A Stripe of Mirrors
Redundancy of RAID 10
Can loose all but one of each set of mirrors
Minimum disks required for RAID 10
4
Explain RAID 10
2 pairs are mirrored and then striped with the other
Performance of RAID 10
The speed of striping with the redundancy of mirroring
What is a RAID
Redundant Array of Independent Disks
