What kinds of storage entities can be members of a RAID array?
A2:
Answer: Any storage address space: Devices, subsystems, SCSIlogical units, and volumes
3:
True or false: RAID members have to be the same size.
A3:
Answer: True
4:
What is the Boolean function used in parity RAID?
A4:
Answer: XOR
5:
What is the purpose of parity with RAID?
A5:
Answer: Parity RAIDprovides efficient data redundancy.
6:
Describe the difference between strips and stripes.
A6:
Answer: Strips are written to individual members, and stripes are all the related strips with a common parity value.
7:
What is the best possible MTDL in a RAID 5 array?
A7:
Answer: MTBF+ MTBF/2, using the MTBFspecification for member drives in the array
8:
Briefly explain the RAID 5 write penalty.
A8:
Answer: The RAID5 write penalty is the process of reading both old data and parity data from disk to re-create new parity data to go with new data being written to a member strip in the array.
9:
What is the maximum number of member pairs in a RAID 10 array?
A9:
Answer: There is no maximum.
10:
What is the most common type of parity RAID used today?
![Storage Networking Fundamentals(c) An Introduction to Storage Devices, Subsystems, Applications, Management, a[... ]stems](/icons/4665-small.jpg "Storage Networking Fundamentals(c) An Introduction to Storage Devices, Subsystems, Applications, Management, a[... ]stems"){kind=icon}