3.3 – RAID

Question 1

If server dies, use RAID system because

Answer 1

–One drive dies, other one kicks in

–Allows computer to keep going if one drive dies

–Hard drives are one of the 1st to fail because of moving parts

Question 2

RAID Combines Drive for Computer

Answer 2

–Computer sees them as ONE drive

–Computer writes data to them

–Some RAIDs give redundancy

Question 3

RAID = Redundant Array of Independent [Inexpensive] Disks

Answer 3

–Combines identical hard drive to either increase storage capacity & performance, provide data protection or both

–RAID 0, 1, 5, 10

–RAID is not specific to any kind of drive
IDE, SATA [common], M.2, PCIe, USB or Thunderbolt

–SSD RAID is NOT common

Question 4

Hardware RAID

Answer 4

a. Motherboard built-in RAID

b. PCI / PCIe RAID controller cord

c. USB / Thunderbolt external RAID encloser

Question 5

Software RAID

Answer 5

a. Windows = Dynamic Disk & Storage Spaces

b. MacOS = Disk utility can be used to create RAID arrays

c. Linux = Built-in to the Linux kernal as a standard

Question 6

JBOD = Just a Bunch of Disks

Answer 6

–Took all drives & put into a machine

–Hard Drive & NVME – NOT raided, just connected