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A storage administrator is configuring Optimizer on an EMC Symmetrix VMAX array. The array is configured entirely with RAID 5 (3+1) devices. All devices are 8 GB and all devices are R1 devices with SRDF/A mirrors on a remote array. Optimizer has completed the first cycle of performance analysis and has recommended a large number of device swaps to balance the activity on the array. The storage administrator has been asked to minimize the time it takes to complete all the swaps. What is the minimum configuration of DRV devices that the administrator needs to create?
A. 8 x RAID 1, 8 GB DRVs.
B. 8 x RAID 5, 8 GB DRVs.
C. 16 x RAID 1, 8 GB DRVs.
D. 16 x RAID 5, 8 GB DRVs.
In an SRDF/Star environment, which event requires an unplanned switch of the production workload?
A. Network failure between the workload and either target site
B. Failure of the asynchronous target site
C. Failure of the synchronous target site
D. Failure of the workload site
A company has three data centers that they use to run Concurrent SRDF/Star. All links between the workload and synchronous target sites were temporarily unavailable. They are unsure about the sequence of actions during the transient fault recovery process. When do they need to run the symstar reset command?
A. After the connection between the workload and target sites is reinstated.
B. After switching the workload to the asynchronous target.
C. After disabling RDF consistency group protection.
D. After setting the RDF mode to Adaptive Copy.
A system administrator needs to migrate all virtual machines in a vSphere datastore from an EMC Symmetrix DMX3 to a VMAX. The virtual machines will be migrated individually to minimize the impact to the ESX hosts. The virtual machines must remain online during the migration. Which migration approach meets all the objectives?
A. Use Storage vMotion to migrate the virtual machines to the new datastore.
B. Use vMotion to migrate the virtual machines to a new ESX host.
C. Use host-based tools to migrate to a new virtual machine on the new datastore.
D. Use SRDF/S to migrate the datastore to the new array.
Multiple production workloads on an EMC Symmetrix array experience performance issues during the backup window. Even though backups are written to SATA devices and production workloads reside on EFD and FC devices, response times for the production hosts degrade during the backup window and quickly recover thereafter. During the backup window, the Symmetrix is consistently approaching the system write pending limit. What is the best way to provide predictable and controlled service levels for the production workloads?
A. Create a static Dynamic Cache Partition for the backup workload.
B. Create a static Dynamic Cache Partition for the production workloads.
C. Create a flexible Dynamic Cache Partition for the backup workload.
D. Create a flexible Dynamic Cache Partition for the production workloads.
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. One large LUN with one datastore
C. One large LUN with multiple datastores
D. Multiple LUNs with one spanned datastore
You work in the SAN engineering department for a company that has deployed their Microsoft Exchange 2010 application on EMC Symmetrix VMAX storage arrays across multiple site locations. The VMAX storage arrays utilize SRDF for disaster recovery. You are required to enforce thin pool utilization limits to avoid any performance implications that could arise from over-subscription. Which two thin pool parameters should be used?
A. Maximum subscription and pre-allocate each volume
B. Write balancing and do not pre-allocate each volume
C. Rebalancing variance and pre-allocate each volume
D. Maximum scan device range and do not pre-allocate each volume
A database administrator is implementing a new production database in Oracle 11g for Oracle RAC hosts attached to an EMC Symmetrix. The storage for the redo logs need to be provisioned. How should the metavolume be configured for redo logs?
A. Striped metavolume from devices located on separate physical spindles.
B. Striped metavolume from devices located on the same physical spindles.
C. Concatenated metavolume from devices located on separate physical spindles.
D. Concatenated metavolume from devices located on the same physical spindles.
When formatting Symmetrix volumes for use with Microsoft SQL Server online transaction processing databases, which allocation unit size should be selected?
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