Instant Access EMC.D-PVM-OE-01.v2026-01-15.q57 Actual Practice Test Engine for Free (Page 9)

Question 36

What is an update operation in SRDF on PowerMax arrays?

A.process to retain the data on the target R2 side
B.A process used to return to the original production site after a failover event
C.A process that initiates an incremental copy from the target R2 to the source R1
D.A process that allows separate hosts to access the same data independently

Correct Answer: C

Step by Step Comprehensive Detailed Explanation:
In SRDF (Symmetrix Remote Data Facility), an "update" operation refers to a specific process where changes made on the target (R2) side are copied back to the source (R1) side. This is typically used in disaster recovery scenarios where:
* Failover:A failover occurs, and the target (R2) becomes the active production site.
* Data Modification:Data is modified or updated on the target (R2) while it's acting as the primary.
* Update Operation:An "update" is initiated to synchronize the changes from the target (R2) back to the source (R1), ensuring that the source has the latest data.
This process is crucial for maintaining data consistency and ensuring a smooth transition back to the original production site after a failover event.
Why other options are incorrect:
* A. process to retain the data on the target R2 side:This is not specific to an "update" operation. Data retention on the target is a general aspect of SRDF.
* B. A process used to return to the original production site after a failover event:While an "update" is part of the failback process, it's not the entire process itself. Failback involves other steps like reversing replication direction and restoring host access.
* D. A process that allows separate hosts to access the same data independently:This describes a different SRDF configuration (like Active/Active) and is not related to the "update" operation.
References and documents of Dell's public documentation for PowerMax Operate v.2:
* Dell Solutions Enabler 10.0.0 SRDF Family CLI User Guide:This guide provides detailed information about SRDF commands and operations, including the symrdf update command used to initiate an update from R2 to R1. You can find this document on the Dell Support website by searching for "Solutions Enabler SRDF Family CLI User Guide."
* Dell PowerMax Family: Essentials and Best Practices Guide:This guide offers a comprehensive overview of SRDF and its functionalities, including disaster recovery scenarios and the use of the
"update" operation.

Question 37

What takes place during an SRDF Restore operation?

A.Changes made to the R1 are propagated to the R2. Changes made to the R2 are discarded
B.Resumes normal SRDF mirroring and host access
C.Changes made to the R2 are propagated to the R1 Changes made to the R1 are discarded
D.Enables access to both the R1 and R2 devices for their hosts

Correct Answer: A

Step by Step Comprehensive Detailed Explanation:
In SRDF (Symmetrix Remote Data Facility), a "Restore" operation is used to resynchronize the source (R1) and target (R2) devices after a situation where the target device might have been modified independently.
This typically occurs after a failover scenario where the target device becomes the primary and undergoes changes.
During an SRDF Restore operation:
* R2 Changes Discarded:Any changes made to the target (R2) device since the last synchronization are discarded.
* R1 Changes Propagated:The current data on the source (R1) device is copied over to the target (R2), overwriting any existing data on the target.
This effectively restores the target device to a state consistent with the source device, ensuring data integrity and consistency.
Why other options are incorrect:
* B. Resumes normal SRDF mirroring and host access:While a Restore operation can be part of the failback process, it's not the only step involved. Failback might involve additional actions like reversing replication direction and restoring host access.
* C. Changes made to the R2 are propagated to the R1. Changes made to the R1 are discarded:This describes an "Update" operation, not a "Restore."
* D. Enables access to both the R1 and R2 devices for their hosts:This describes a "Split" operation, where both devices are made accessible independently.
References and documents of Dell's public documentation for PowerMax Operate v.2:
* Dell Solutions Enabler 10.0.0 SRDF Family CLI User Guide:This guide provides detailed information about SRDF commands and operations, including the symrdf restore command. You can find this document on the Dell Support website by searching for "Solutions Enabler SRDF Family CLI User Guide."
* Dell PowerMax Family: Essentials and Best Practices Guide:This guide offers a comprehensive overview of SRDF and its functionalities, including disaster recovery scenarios and the use of the
"Restore" operation.

Question 38

What is the maximum number of supported cascaded Storage Group levels in PowerMax and VMAX Family arrays?

A.4
B.64
C.1
D.16

Question 39

When creating SRDP groups, what is always identical on both the participating arrays?

A.SRDF group number
B.Port speed
C.Name of the SRDF group
D.SRDF Directors

Question 40

Refer to the exhibit.

What is the topology shown1?

A.Cascaded SRDF
B.SRDF/Star
C.SRDF/Metro
D.Concurrent SRDF

Question 36

Question 37

Question 38

Question 39

Question 40

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