DES-1721 試験問題を無料オンラインアクセス

A customer is facing poor performance on all synchronously replicated volumes every Thursday between 4 PM and 6 PM. All departments have checked their applications for any batch jobs; however, nothing was found. The I/O graphs do not show any anomaly and the replication links are not saturated.
What is the possible reason for this behavior?

• A.Data Progression is consuming all disk performance
• B.Automatic report creation is impacting replication
• C.Switches used for replication are restarting
• D.QoS Bandwidth Limit is enabled in the QoS node

You are implementing a front-end connection in Legacy Port Mode on an SC4020 in a SAN with two iSCSI switches. What is the minimum number of port(s), per switch, that can be used by the SC Series array?

• A.One port on each of the Ethernet switches
• B.Two ports on each of the Ethernet switches
• C.Four ports on each of the Ethernet switches
• D.Eight ports on each of the Ethernet switches

Assume a storage administrator is using the recommended storage profile. What describes the distribution of volume data residing in an SC series storage array that has 15K and 7K as the back-end?

• A.New data in Tier 1 RAID 10Frequently accessed replay data in Tier 1 RAID 5Aged replay data and inaccessible data in Tier 3 RAID 6
• B.New data in Tier 1 RAID 10Frequently accessed replay data in Tier 2 RAID 5Aged replay data and inaccessible data in Tier 3 RAID 6
• C.New and frequently accessed replay data in Tier 1 RAID 10Aged replay data and inaccessible data in Tier 3 RAID 6
• D.New and frequently accessed replay data in Tier 1 RAID 5Aged replay data and inaccessible data in Tier 3 RAID 6

Which SC Series array feature allows all front-end ports to act as active data paths?

• A.Legacy Port Mode
• B.ALUA
• C.Virtual Port Mode
• D.Dual Fabric

Where are Dell Storage Manager (DSM) automated reports stored for later access?

• A.DSM database
• B.External document management system
• C.First created volume
• D.DSM file system