D-PVM-OE-23 Dell PowerMax and VMAX Operate Practice Questions
Prepare for D-PVM-OE-23 with more than an answer.
- Exam fee
- $200 USD
- Level
- Specialist
- Valid for
- 2 years
Domains covered on the exam 6
- PowerMax and VMAX Family Local and Remote Replication9%
- PowerMax and VMAX Family Business Continuity Administration26%
- Unisphere for PowerMax Implementation and Administration8%
- PowerMax and VMAX Family Configuration Administration41%
- Solutions Enabler Implementation7%
- Non-Disruptive Migration to PowerMax and VMAX Family9%
- 1
When using SYMCLI to create a new masking view on a VMAX3 array, which three components are required to define the view? (Select THREE)
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Correct answer: A, B, C
The Initiator Group contains the WWNs of the host HBAs that will be granted access.
The Storage Group contains the devices (LUNs) that will be presented to the host.
The Port Group contains the front-end array ports through which the host will access the storage.
- 2
An administrator has established an SRDF/A session between a primary and a secondary PowerMax array. They need to perform a non-disruptive disaster recovery test. The goal is to bring up the applications at the DR site using a recent copy of the data without stopping the flow of replication from the primary site. Which SRDF operation should be performed on the secondary (R2) devices?
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Correct answer: D
The standard and non-disruptive method for DR testing with SRDF is to use TimeFinder SnapVX on the target (R2) side. By creating a snapshot of the R2 devices, you get a point-in-time copy that can be linked to target LUNs and presented to test servers. This allows the DR environment to be fully tested with a consistent data set, while the underlying R2 devices continue to receive asynchronous replication data from the primary site without interruption. This isolates the test environment and does not risk the integrity of the primary replication.
- 3
Open Replicator is a feature used for data mobility between Symmetrix arrays and certain third-party arrays. In a 'push' operation, which device initiates the data copy?
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Correct answer: A
In an Open Replicator push operation, the Symmetrix/PowerMax array is the one that controls and initiates the data movement. The control device on the Symmetrix 'pushes' the data from itself (acting as the source) to the remote device on the third-party array (acting as the target). This is contrasted with a 'pull' operation, where the Symmetrix control device 'pulls' data from a remote third-party source device.
- 4
True or False: The embedded Unisphere for PowerMax instance running on a PowerMax array can be used to manage other VMAX or PowerMax arrays in the data center.
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Correct answer: B
This statement is false. The embedded Unisphere for PowerMax instance is designed to manage only the local array on which it is running. To manage multiple PowerMax or VMAX arrays from a single interface, a standalone Unisphere for PowerMax server must be deployed on a separate physical or virtual machine.
- 5
An administrator is creating a new thin device (TDEV) on a PowerMax 2000 using the
symdevcommand. They want to enable inline compression for this new device. Which command line flag should be added to the creation command?Show answer details
Correct answer: C
The correct flag to enable inline compression on a new TDEV when using SYMCLI is
-compression. This flag instructs the array to apply its inline compression algorithm to all data written to that specific thin device. Data reduction is a broader term, and other flags like-deduplicationexist, but-compressionspecifically controls the compression feature. - 6
A financial services company is implementing a new SRDF/Metro active-active solution between two data centers for a mission-critical Oracle database. During user acceptance testing, the network team reports intermittent latency spikes on the inter-data center links. The storage administrator needs to validate the SRDF link health and identify the cause of the latency without disrupting the SRDF/Metro session. Which SYMCLI command should be used to get a real-time, detailed performance snapshot of the SRDF links?
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Correct answer: C
The
symrdf pingcommand is specifically designed to test the connectivity and measure the round-trip time (RTT) of SRDF links between local and remote arrays. It sends a small I/O packet over the RDF links and reports the RTT, which is a direct indicator of network latency. This command provides a real-time health check without affecting the replication state, making it ideal for troubleshooting latency spikes in an active SRDF/Metro environment.symrdf queryprovides state information, not real-time latency.symrdf listshows configuration details.symrdf verifychecks for device pair synchronization. - 7
A storage administrator is provisioning a new Storage Group on a PowerMax 8000 for a high-performance data analytics cluster. The requirement is to ensure the workload receives the highest possible priority for I/O operations and the lowest possible response times, even during periods of array contention. Which Service Level should be assigned to this Storage Group to meet this strict requirement?
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Correct answer: B
The Diamond Service Level is designed for mission-critical workloads that demand the absolute highest performance priority on a PowerMax array. It provides the lowest latency and is always serviced before any other service level. For a high-performance data analytics cluster where response time is paramount, Diamond is the correct choice. Platinum is a high-performance tier but does not have the same level of I/O prioritization as Diamond. Gold and Silver are for less critical workloads.
- 8
During a Non-Disruptive Migration (NDM) from a VMAX3 to a PowerMax 2000, the migration session enters a 'Cutover_Ready' state. The administrator needs to perform the final cutover during a scheduled maintenance window using SYMCLI. What is the correct sequence of high-level actions to complete the migration?
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Correct answer: C
The correct NDM cutover process involves minimal disruption. The hosts should be quiesced or put into a maintenance mode to ensure application consistency. Then, the
symmir -g cutovercommand is executed, which swaps the personalities of the source and target devices. After the cutover, it's crucial to verify that the host multipathing software has correctly discovered the new paths to the target PowerMax array. Once paths are verified, the hosts and applications can be brought back online. Unmounting filesystems is generally not required for a non-disruptive migration. - 9
An administrator is managing a PowerMax array using a newly deployed Solutions Enabler Virtual Appliance (SEVA). They are unable to run any SYMCLI commands against the array. They have verified network connectivity between SEVA and the array's management IP. Which of the following are the MOST likely causes for this issue? (Select TWO)
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Correct answer: A, B
The storsrvd daemon is essential for Solutions Enabler to discover and communicate with storage arrays. If this daemon is not running, no SYMCLI commands will succeed.
Gatekeeper devices are small LUNs presented to the Solutions Enabler host (in this case, SEVA) that are used for management communication with the array. Without properly configured and mapped Gatekeepers, SYMCLI cannot communicate with the array.
- 10
A database team requires multiple, point-in-time, space-efficient copies of their production database LUNs for daily reporting. The process involves creating a snapshot, linking it to several different reporting servers, and then terminating the links and the snapshot at the end of the day. The administrator decides to use TimeFinder SnapVX. Which statement accurately describes the relationship between snapshots and linked targets in SnapVX?
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Correct answer: B
A key feature of SnapVX is its flexibility. A single source device can have up to 1024 snapshots, and each of those snapshots can be linked to up to 1024 target devices simultaneously. Each linked target is a fully readable and writable copy, making it ideal for use cases like dev/test, reporting, and analytics where multiple teams need access to a point-in-time copy of the data.
