E20-814 試験問題を無料オンラインアクセス

The workload site in a concurrent Star configuration experienced a disaster. In the course of recovering from the disaster, it is discovered that the RDF pair configuration of the devices between the workload and synchronous target sites is marked as "Duplicate" as shown in the exhibit.

What is the cause for this behavior?

• A.Site failover commands were executed in the wrong order
• B.A symstar switch command was issued
• C.A symstar reconfigure command was issued
• D.A symstar disable command was issued

EMC Symmetrix VMAX devices 0AB and 019 are allocated to a UNIX server. Devices 0AB and 019 are two-member meta devices:
Meta device 0AB has a capacity of 100 GB
Meta device 019 has a capacity of 200 GB
The storage administrator found that the utilization of device 019 is much higher than device 0AB. How is the write pending limit allocated?

• A.Write pending limit of device 0AB will be higher than device 019
• B.Write pending limit of device 019 will be higher than device 0AB
• C.Devices 0AB and 019 get exactly the same limit, regardless of their utilization
• D.Write pending limit of a device varies depending upon utilization

The back-end IOs/sec (BE IOS/sec) consistently exceed the host IOs/sec on the EMC Symmetrix VMAX array shown in the exhibit.

What could be the cause?

• A.Reads from parity-protected devices
• B.Sequential reads
• C.Writes to parity-protected devices
• D.Sequential writes

A company uses VMware ESXi servers and EMC Symmetrix VMAX storage arrays. The storage administrators use the VMware vSphere client on their Microsoft Windows desktops to manage the environment. They would like to use the EMC Virtual Storage Integrator Path Management plug-in.
Which path management activities will this plug-in allow?

• A.Set multi-pathing policy for individual Symmetrix devices
• B.Change the multi-pathing ownership of all Symmetrix devices from NMP to PowerPath/VE
• C.Set multi-pathing policy for all Symmetrix devices
• D.Change the multi-pathing ownership of individual Symmetrix devices from NMP to PowerPath/VE

You are planning the deployment of a VMware vSphere environment with EMC Symmetrix VMAX arrays. Each ESXi cluster will host at least 100 virtual machines.
Which storage allocation will provide optimal performance and scalability?

• A.Multiple LUNs with a datastore on each LUN
• B.Multiple LUNs with one spanned datastore
• C.One large LUN with multiple datastores
• D.One large LUN with one datastore