1z0-499 Exam Dumps | A storage administrator needs to configure a storage pool for an application that requires high performance

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Oracle.1z0-499.v2019-01-09.q36
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A storage administrator needs to configure a storage pool for an application that requires high performance but also high availability.
Which data profile would you select?

A. striped

B. mirrored

C. double-parity RAID

D. triple-parity RAID

E. single-parity RAID

Correct Answer: C

Explanation/Reference:
Explanation:
Double parity RAID is RAID in which each stripe contains two parity disks. As with triple mirroring, this yields high availability, as data remains available with the failure of any two disks. Double parity RAID is a higher capacity option than the mirroring options and is intended either for high-throughput sequential- access workloads (such as backup) or for storing large amounts of data with low random-read component.
Note: RAIDZ (single parity), Z2 (double parity), Z3 (triple parity)
Incorrect Answers:
D: Triple parity RAID, wide stripes. RAID in which each stripe has three disks for parity. This is the highest capacity option apart from Striped Data. Resilvering data after one or more drive failures can take significantly longer due to the wide stripes and low random I/O performance. As with other RAID configurations, the presence of cache can mitigate the effects on read performance. This configuration is not generally recommended.
References: https://docs.oracle.com/cd/E51475_01/html/E52872/goden.html

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