E20-807 Online Practice Questions and Answers

SRDF/Metro has been deployed between two data centers. SRDF/Metro is operating normally. Maintenance tasks at the R1 data center require the array to be offline.

Which SRDF operation should be executed on the Metro RDF pairs to facilitate the planned outage without affecting application I/O?

A. Failover

B. Split with bias set to R2

C. Suspend with bias set to R2

D. Swap

What is a characteristic of sequential read I/Os on a VMAX3 array?

A. Prefetch task will stop when sequential I/O stops

B. Higher priority than the host I/O

C. DA will start the prefetch task

D. tracks are red into cache by the frontend director

When FAST.X is used to access five VNX arrays from a single VMAX3, what is the minimum number of DX ports required?

A. 4

B. 10

C. 20

D. 40

Refer to the Exhibit.

SRDF/Star has been deployed on VMAX3 arrays. Star protection has been enabled. Where are the active and inactive SDDF sessions located during normal operations?

A. Site A. Two active sessions Site B. One inactive session

B. Site A. Two active sessions Site C. One inactive session

C. Site B. Two inactive sessions Site C. Two inactive session

D. Site B. Two active sessions Site C. One inactive session

A company's regulatory controls require all management accounts used by individuals with access to data stored on storage systems must comply with password strength and active duration policy.

What should be used to meet this requirement?

A. LDAP-SSL

B. X.509 Certificate

C. Local Unisphere

D. Windows Local

Refer to the Exhibit.

Cascaded SRDF has been deployed on VMAX3 has been deployed on VMAX3 arrays. The SRDF mode has been set to Asynchronous between Sites A and B.

Which SRDF mode is permitted between Sites B and C?

A. Adaptive Copy Write Pending

B. Synchronous

C. Adaptive Copy Disk

D. Asynchronous

By default, how many days of the data are retained if Unisphere for VMAX is configured with a Root Cause Analysis Interval of 10 minutes?

A. 15

B. 30

C. 45

D. 60

A company is using SRDF/AR Multi-Hop as a disaster recovery solution. Their primary application requires 27.3 TB on their primary site. How much storage capacity is required on the third site?

A. Only 27.3 TB

B. 27.3 to 54.6 TB

C. Only 54.6 TB

D. Greater than 54.6 TB

What is a benefit of SRDF R22 devices in a VMAX3?

A. Allows simultaneous replication of a source device to two different target devices

B. Allows simulations replication of two source devices to the same target device

C. Makes SRDF/Star more resilient

D. Makes Cascaded SRDF more resilient

Concurrent SRDF/Star has been implemented and Star protection has been enabled. The storage administrator wants to perform a planned switch of the workload to the Synchronous site. Which actions should the administrator perform before the switch?

A. halt Star and then Disconnect both target sites

B. Stop application I/O at the Workload site and then Halt Star

C. Stop application I/O at the Workload site and then Disable Star

D. Disable Star and then Halt Star