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Storage Management & Retrieval - May 2013
Information Technology (Semester 8)
TOTAL MARKS: 100
TOTAL TIME: 3 HOURS
(1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Each question carries equal marks and sub-question marks are equally divided.
1 (a)
Consider a disk I/O system in which an I/O request arrives at the rate of 60 IOPS. The disk service time is 4ms.
i) compute the following: Utilization of I/O controller, Total response time. Average queue size and Total time spent by a request in a queue.
ii) Compute the preceding parameter if the service time is halved
Explain information Lifecycle. What are the key challenges in managing information?
(10 marks) 2 (a)Explain the logical components of the Host in detail.
(10 marks) 2 (b)Explain the factor affecting NAS performance and availability in detail.
(10 marks) 3 (a)Explain CAS Architecture with examples.
(10 marks) 3 (b)Explain Remote replication technologies in brief.
(10 marks) 4 (a)Explain various forms of virtualization and storage virtualization challenges.
(10 marks) 4 (b)Explain failure Analysis with respect to Business continuity.
(10 marks) 5 (a)Explain fibre channel architecture
(10 marks) 5 (b)Explain SCSI command model in detail.
(10 marks) 6 (a)Explain following:-
i) Storage security domains
ii) Risk Triad
Explain components of an Intelligent storage system in detail.
(10 marks)
Write short notes on the following (any four):-
7 (a)
Zoning
(5 marks) 7 (b)Backup in NAS environment
(5 marks) 7 (c)Object Storage and Retrieval in CAS.
(5 marks) 7 (d)LUN and LUN masking
(5 marks) 7 (e)Raid levels.
(5 marks)