Question
RAID: Determine storage efficiency and reliability. 1. Select Tool for Storage Efficiency. (a) With 250 disks in the disk array, what is the highest and
RAID: Determine storage efficiency and reliability. 1. Select Tool for Storage Efficiency.
(a) With 250 disks in the disk array, what is the highest and lowest storage efficiency?
Which RAID architecture offer the best and the worst efficiency?
(b) Consider a system with 5 blocks of data and one parity disk. Let a block read be 1 cycle and block write be 2 cycles. Let logical XOR take 1 cycle. When a block is being written into the system, list the following for RAID3 and RAID4 systems
(i) What are the operations that will be performed? RAID3:
RAID4:
(ii) What is the total cycle time for the operation?
RAID3:
RAID4:
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Advances In Databases And Information Systems 14th East European Conference Adbis 2010 Novi Sad Serbia September 2010 Proceedings Lncs 6295
Authors: Barbara Catania ,Mirjana Ivanovic ,Bernhard Thalheim
2010th Edition
3642155758, 978-3642155758
