Dell-EMC
E20-326 · Question #227
A customer plans to configure their new Symmetrix VMAX 20K. They want your advice on how to configure a storage pool. This new storage pool will handle large block, sequential write I/O. What advice…
The correct answer is B. Use RAID 5 because it can be more efficient for sequential writes than RAID 1. See the full explanation below for the reasoning.
Question
A customer plans to configure their new Symmetrix VMAX 20K. They want your advice on how to configure a storage pool. This new storage pool will handle large block, sequential write I/O. What advice should be provided about RAID types as they relate to performance?
Options
- AUse RAID 1 because RAID 5 will have an overhead penalty.
- BUse RAID 5 because it can be more efficient for sequential writes than RAID 1.
- CUse RAID 6 because both RAID 1 and RAID 5 have a higher overhead penalty.
- DRAID type does not matter since everything in the VMAX goes through cache.
How the community answered
(40 responses)- A8% (3)
- B73% (29)
- C18% (7)
- D3% (1)
Community Discussion
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