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Questions # 31:

What is an update operation in SRDF on PowerMax arrays?

Options:

process to retain the data on the target R2 side

A process used to return to the original production site after a failover event

A process that initiates an incremental copy from the target R2 to the source R1

A process that allows separate hosts to access the same data independently

Answer

Explanation

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.

Questions # 32:

In PowerMax VMAX All Flash and VMAX3 which thin provisioning component can be changed with SYMCLI or Unisphere?

Options:

Storage Resource Pool

Disk Group

Storage Group

Virtual Provisioning Pool

Questions # 33:

Exhibit.

Question # 33

Which activity needs to be performed prior to the operations shown in the exhibit?

Options:

TTL setting should be changed

Snapshot should be terminated

Target volumes should be unmounted

Target volumes should be unmapped

Questions # 34:

Which compression algorithm is used on a PowerMax?

Options:

Deflate

LZS

LZW

FastLZ

Questions # 35:

On a PowerMax what is the correct sequence of steps to deduplicate data?

Question # 35

Options:

Questions # 36:

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

Options:

Port speed

Name of the SRDF group

SRDF group number

SRDF Directors

Questions # 37:

What will prevent a LUN from being assigned to a second Storage Group?

Options:

Both Storage Groups have a service level assigned

A LUN can only be assigned to one Storage Group

Storage Groups are already participating in a Masking View

One of the Storage Groups is a child group

Questions # 38:

When using TimeFinder SnapVX, why would a redirection-write be changed to a copy-on-write?

Options:

Snapshot delta has used 80% of the SRP

Prevent a new write from being demoted to a lower tier

Back-end utilization exceeds 80%

Improve wear rates on flash disks

Questions # 39:

Two PowerMax arrays have been configured for replication using SRDF During a disaster recovery operation production has been transferred to the R2 devices at the target site. Which operation begins the transfer of accumulated invalid tracks from the R2s to the R1s while production work continues on the R2s?

Options:

Update

Fallback

Resume

Failover

Questions # 40:

What is the default port number to access the Dell EMC vApp Manager for Solutions Enabler?

Options:

5480

2707

8443

8080

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