Users Online
· Guests Online: 74
· Members Online: 0
· Total Members: 188
· Newest Member: meenachowdary055
· Members Online: 0
· Total Members: 188
· Newest Member: meenachowdary055
Forum Threads
Newest Threads
No Threads created
Hottest Threads
No Threads created
Latest Articles
Articles Hierarchy
Interview Questions ? RAID Technology
Interview Questions – RAID Technology
The following job interview questions test interviewee’s knowledge and understanding of various RAID Levels and their advantage and disadvantages:
- How many I/O operations are issued by a RAID controller for a RAID5 write operation (lets assume 4 disks in total)?
- Compare and contrast RAID 4 and RAID 5 with respect to performance issues (read & write performances).
- Out of RAID10 and RAID01 – which is better for fault tolerance and why? (lets have 4 disks in total)
- What is RAID 5 Write Hole?
- What is degraded mode of operation?
- What is a Hot Spare?
- Calculate storage efficiency (in % terms) for the following configurations. Storage efficiency can be defined as the actual amount of real data than can be stored in a given storage system.
a) RAID1 – Disk1 size 50 GB, Disk2 size 50 GB.
b) RAID1 – Disk1 size 50 GB, Disk2 size 150 GB.
c) RAID4 – Disk1 size 50 GB, Disk2 size 50 GB, Disk3 size 50 GB.
d) RAID4 – Disk1 size 50GB, Disk2 size 100 GB, Disk3 size 150 GB.
e) RAID4 – Disk1 size 50GB, Disk2 size 100 GB, Disk3 size 150 GB, Disk4 size 200GB.
f) RAID5 – Disk1 size 50 GB, Disk2 size 50 GB, Disk3 size 50 GB.
g) RAID5 – Disk1 size 50GB, Disk2 size 100 GB, Disk3 size 150 GB.
h) RAID6 – Disk1 size 50 GB, Disk2 size 50 GB, Disk3 size 50 GB, Disk4 size 50 GB.
i) RAID6 – Disk1 size 50 GB, Disk2 size 100 GB, Disk3 size 150 GB, Disk4 size 200 GB.
j) Out of all RAID levels, Which RAID level has maximum storage efficiency?
Comments
No Comments have been Posted.
Post Comment
Please Login to Post a Comment.