E20-814 試験問題を無料オンラインアクセス

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

A company intends to manage their EMC Symmetrix VMAX array with the Symmetrix Management Console Virtual Appliance (SMCvAPP) deployed on an ESXi server. What is the requirement with regards to Symmetrix gatekeeper (GK) devices?

• A.SMCvAPP should have access to GKs, presented as RDMs in Virtual Compatibility mode
• B.SMCvAPP should have access to GKs, presented as RDMs in Physical Compatibility mode
• C.ESXi should have PowerPath/VE installed and access to GKs over multiple paths
• D.ESXi should have access to GKs and the NMP path selection policy should be set to Round Robin

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 oversubscription.
Which two thin pool parameters should be used?

• A.Maximum scan device range and do not pre-allocate each volume
• B.Rebalancing variance and pre-allocate each volume
• C.Write balancing and do not pre-allocate each volume
• D.Maximum subscription and pre-allocate each volume

A company requires their ESXi server to boot from an EMC Symmetrix VMAX device over the SAN. What is a consideration?

• A.Boot LUN must have RAID 5 protection
• B.Boot LUN must have a logical unit number between 10-20
• C.Boot LUN must have only one path from the Symmetrix VMAX
• D.Boot controller should be in the lowest-numbered PCI slot on the server

A production Oracle database with a high transaction rate recently experienced slow performance. The storage for the database is on an EMC Symmetrix VMAX and is laid out according to best practice principles. Further investigation found that there was a physical drive failure affecting one of the storage volumes where the database was stored. The database volumes were on RAID 5 metavolumes.
The database administrator is concerned that the RTO will not be met in the future if a database recovery was required at the same time as a drive failure. To meet the RTO, which change to the environment is recommended?

• A.Migrate the database to metavolumes with RAID 6 protection
• B.Double the number of HBAs in the servers
• C.Migrate the database to metavolumes with RAID 1 protection
• D.Double the number of front-end adapters mapped to the existing metavolumes