E20-517 Online Practice Questions and Answers

A pair of Symmetrix VMAX arrays have been configured for SRDF/Synchronous replication.

What is the result if one or more source (R1) devices in an SRDF/Synchronous consistency group cannot propagate data to their corresponding target (R2) devices?

A. RDF daemon suspends the consistency group, thereby stopping data propagation from all R1 devices

B. Target (R2) devices will be Read/Write Enabled at the R2 site

C. PowerPath suspends data propagation to the R1 devices in the consistency group

D. RDF daemon suspends the data propagation from the affected R1 devices while maintaining consistency among the remaining devices

An application running on a virtually provisioned Symmetrix VMAX is bound to a thin pool P1 comprising 15K RPM Fibre channel drives assigned to a VP tier T1. The application is not performance sensitive. New SATA drives are added to the VMAX. A thin pool P2 is created on the SATA drives and assigned to VP Tier T2.

How can the thin device allocations be completely moved from pool P1 to pool P2 and the thin devices bound to pool P2 without loss of application data?

A. Use virtual LUN Migration VP to move the thin devices from P1 to P2

B. Rebind the thin devices to pool P2

C. Implement FAST VP with a suitable policy to automatically relocate the storage allocations to pool P2

D. Unbind the thin devices from P1. Bind the thin devices to P2

What are valid device types of concurrent SRDF?

A. R11 R22 R21

B. R11 R12 R22

C. R12 R21 R22

D. R11 R12 R21

A customer is planning to migrate data belonging to two applications (A and B) from an older array to a new Symmetrix VMAX. Both migrations will run in parallel. However, it is necessary to transfer data from application A (session A) as fast as possible. The data from application B (session B) can be transferred at a slower rate.

Which settings should be used to run the two sessions?

A. The pace of session A should be set to 0. The pace for session B should be set to 9.

B. The pace for session A should be set to 9. The pace for session B should be set to 0.

C. Session A should be assigned to a Fibre Channel director with a ceiling setting of 100. Session B should be assigned to a different director with a ceiling value of 10.

D. Session A should be assigned to a Fibre Channel director with a ceiling setting of 10. Session B should be assigned to a different director with a ceiling value of 100.

An external disk (eDisk) configured on a Symmetrix displays "Degraded" service state when you display detailed information about the disk using SYMCLI.

What state would you expect to see reported under the "DA hyper status" ?

A. Ready

B. Not Ready

C. Failed

D. Normal

A customer uses Solutions Enabler to manage their Symmetrix VMAX arrays. They want to ensure that device groups defined on one Solutions Enabler host becomes visible to the other Solutions Enabler hosts automatically.

Which Solutions Enabler daemon will satisfy this requirement?

A. storgnsd

B. storapid

C. storrdfd

D. storevntd

Under which conditions will Enginuity remove the Consistency Exempt attribute from the RDF mirror?

A. Moving RDF pairs

B. Creating RDF pairs

C. Splitting RDF pairs

D. Suspending RDF pairs

Which lock(s) will be in place when a device is being swapped by Optimizer on a Symmetrix VMAX array?

A. Back-end device lock

B. Configuration lock C. Front-end device and director locks

D. Front-end device and back-end device locks

What is the order of use for SRDF/A Delta Sets?

A. Capture, Transmit, Receive, Apply

B. Capture, Apply, Transmit, Receive

C. Transmit, Receive, Capture, Apply

D. Apply, Transmit, Receive, Capture

What are the characteristics of the port groups on Symmetrix storage arrays running Enginuity 5876?

A. May contain valid front-end ports, only fibre and GigE ports, enabled ACLX flag on ports.

B. A port belongs only to one port group, enabled ACLX flag on ports, only fibre and GigE ports.

C. Can have mixed port types, only fibre and GigE ports, disabled ACLX flag on ports.

D. Enabled ACLX flag on ports, can have mixed port types, can contain valid back-end ports.

A customer wants to deploy SRDF/S between a pair of Symmetrix VMAX arrays. The R1/R2 devices will be RAID-1 protected. Two RAID-1 BCVs will be concurrently established with the R1 device.

How many mirror positions will remain for the R1 devices in this configuration?

A. 0

B. 1

C. 2

D. 3

In a single-hop SRDF/AR setup, the options have been set as follows:

-Cycle Time = 3000

-Delay Time = 0

-Overflow = Next

The symreplicate session was started at time 0. The actual cycle time was 4500 seconds.

How many seconds after the start of the first cycle will the next cycle start?

A. 3000

B. 4500

C. 6000

D. 9000

Which feature allows the contents of a BCV to remain unchanged during and after a restore operation, even while the BCV and the standard are synchronized?

A. Full Establish

B. Incremental Restore

C. Protected Restore

D. symmir Restore

Which feature extends the cache space available for SRDF/A session cycles by off-loading some or all of its cycle data from cache to preconfigured disk storage?

A. Delta Set Extension

B. SRDF/A Transmit Idle

C. Multi-Session Consistency

D. SRDF/A Write Pacing

A customer wants to deploy SRDF/S between a pair of Symmetrix VMAX arrays. The R1/R2 devices will be RAID-1 protected. Two RAID-1 BCVs will be concurrently established with the R1 device. How many mirror positions will remain for the R1 devices in this configuration?

A. 1

B. 2

C. 3

D. 4