| Exam Code/Number: | E20-880Join the discussion |
| Exam Name: | VNX Solutions Expert Exam for Technology Architects |
| Certification: | EMC |
| Question Number: | 240 |
| Publish Date: | Aug 21, 2026 |
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You are currently investigating a SQL performance issue on a VNX array. You narrow down the RAID group where the log file resides. You find that the disk response time is 12 ms.
Based on EMC best practices, what should be your assessment of the environment?
A customer has implemented MirrorView/A.
What determines the upper limits for MV/A performance?
You are designing a VNX storage solution for an Oracle database implementation. The VNX is populated with Flash, SAS and NL-SAS drives. The customer has asked you to recommend the optimal disk layout for the Oracle Automated Storage Manager instance disk group.
Which recommendation best conforms to EMC best practices?
A customer needs a RAID configuration that can maintain 500 host IOPs. The workload has a profile of 90% reads and 10% writes. The customer is also trying to reduce the amount of drives to buy. What RAID configuration would meet the customer's requirements?
Your customer is designing a Proof of Concept with SQL Server attached to a VNX. The storage design includes seven LUNs on a RAID Group. The system is generally very heavily loaded, with a particularly high load on the cache. This is a very carefully controlled environment and your customer has asked for assistance in planning the layout of the LUN location on the physical spindles.
Where in the RAID Group would you recommend placing the two heavily used LUNs if the physical spindle is fully utilized?
