Dell-EMC
E20-818 · Question #67
You are considering a migration of an application from Symmetrix RAID 1 devices to Symmetrix RAID 6 14+2 devices. Which effect of the new configuration might cause performance problems?
The correct answer is A. Destage activity causes additional XOR operations. See the full explanation below for the reasoning.
Question
You are considering a migration of an application from Symmetrix RAID 1 devices to Symmetrix RAID 6 14+2 devices. Which effect of the new configuration might cause performance problems?
Options
- ADestage activity causes additional XOR operations
- BRAID 6 striping reduces prefetch effectiveness
- CRead misses cause duplicate back-end reads
- DLarger number of drives used causes additional back-end activity
How the community answered
(21 responses)- A71% (15)
- B10% (2)
- C5% (1)
- D14% (3)
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