RAIDs Flashcards
1
Q
What is a RAID?
A
- Redundant Array of Inexpensive Disks
- Known for speed and data redundancy
2
Q
What is RAID 0?
A
- Known for for stripping which provides speed
3
Q
What is RAID 1?
A
- Known for mirroring which provides redundancy
4
Q
What is RAID 5?
A
- Known for Stripping with Parity
- Provides speed and redundancy. Can lose 1 drive
- Requires at least 3 disks
5
Q
What is RAID 6?
A
- Known for Stripping and Parity
- Provides speed and redundancy. Can lose 2 drives
- Max 2 drives failures
6
Q
What is RAID 10?
A
- Known as RAID 1+0
- Combines disk mirroring and disk striping to protect data
- Requires at least 4 drives
7
Q
What does Hardware RAID require?
A
- A controller to configure RAID arrays
- Require expansion card that has its own BIOS and a special system setup to configure RAID array.
