Dell-EMC
E20-324 · Question #150
E20-324 Question #150: Real Exam Question with Answer & Explanation
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Question
A customer configured performance monitoring and alerting for their VNX storage array. Periodically they are getting alerts on write latency greater than 15 ms. The VNX is configured with a pool of SAS drives and thin LUNs supporting a database application. NAR data, for a given period which includes one of the alerts, is examined. Flash drives are installed in the VNX; however, they are not currently used. Examining the configuration and data shows the following: -- Host Type = Linux -- Multi-pathing = Native -- Failover Mode = 1 -- Data LUNs = SP A -- Log LUNs = SP B -- LUN Queue Length = 1.9 -- ABQL = 7.5 How can the performance issue be resolved?
Options
- AConfigure and enable FAST Cache
- BBalance data and log LUNs across both SPs
- CConfigure ALUA on the host
- DInstall and configure PowerPath on the host
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