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| Section | Weight | Objectives |
|---|---|---|
| Management and Monitoring | 15% | - Management Tools
|
| PowerMax Family and Architecture | 15% | - PowerMax Models and Features
|
| Cyber Resilience and Security | 10% | - Security Features
|
| PowerMax Solution Design | 35% | - Sizing and Planning
|
| Data Services and Business Continuity | 25% | - Local and Remote Protection
|
>> D-PVM-DS-01 Certification Test Answers <<
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NEW QUESTION # 19
Which deduplication methods are supported for VMAX All Flash?
Answer: D
Explanation:
Reference: https://www.delltechnologies.com/asset/el-gr/products/storage/industry-market/h17072-data- reduction-with-dell-emc-powermax.pdf (7)
NEW QUESTION # 20
The Storage Architect at ACME Widget Company is tasked with designing an SRDF solution between two PowerMax 2500 systems. The goal is to allow both the R1 and R2 to remain read/write enabled to the host.
Which is the correct SRDF mode to use?
Answer: A
Explanation:
To establish a high-availability infrastructure where both the source primary (R1) and target remote (R2) volumes remain concurrently online and read/write accessible to separate host clusters, Symmetrix Remote Data Facility / Metro (SRDF/Metro) is required. Traditional synchronous (SRDF/S) and asynchronous (SRDF
/A) replication models strictly enforce a unidirectional, asymmetric block relationship, where the target R2 device is locked into a write-disabled or read-only state to prevent asynchronous data drift and split-brain scenarios. SRDF/Metro bypasses these traditional data masking boundaries by federating device identities over the physical remote links. It reflects identical device geometries, World Wide Names (WWNs), and system identifiers across both arrays. This advanced virtualization technique forces the server multipathing software to interpret the remote R2 volume as an alternate path to the exact same virtual device. As a result, hosts at either geographical location can safely execute active-active concurrent read and write operations.
The data is mirrored safely across the underlying fabric while a dedicated witness prevents data corruption.
References/Topics: Dell PowerMax Design Course Guide, SRDF/Metro Active-Active Architecture, Cross-Array Identity Federation, Enterprise High Availability Operations.
NEW QUESTION # 21
You are designing a PowerMax system with File Replication DR for a customer. They inform you that the distance between the two data centers is 250 Miles.
Which replication technology for PowerMax remote file replication can be used?
Answer: C
Explanation:
When designing a disaster recovery (DR) architecture for PowerMax File (Software-Defined NAS / SDNAS) across two geographically separated data centers, physical distance and network latency dictate the replication mode. Dell PowerMax replication mechanisms operate under strict physical latency boundaries to safeguard host I/O performance.
Synchronous replication modes, including SRDF/S and SRDF/Metro, mandate that every write I/O received by the local primary array must be transferred across the replication link and acknowledged by the target array's cache before an acknowledgment is returned to the production host. Consequently, SRDF/S and SRDF
/Metro are constrained to metropolitan distances-typically up to 200 kilometers (approximately 124 miles) with round-trip latency (RTT) strictly under 5 to 10 milliseconds. At a distance of 250 miles (approximately
402 kilometers), optical fiber propagation latency causes severe write penalties and violates synchronous operational limits.
SRDF/Asynchronous (SRDF/A) eliminates distance latency penalties by immediately acknowledging host writes at the local array cache and transmitting data to the remote site in dependent-write consistent cycle delta sets. This makes SRDF/A the only architecturally supported remote replication technology for PowerMax File workloads operating over extended distances like 250 miles, ensuring continuous data protection and strict transactional consistency without degrading active production performance.
References/Topics: Dell PowerMax Design Course Guide, PowerMax File Disaster Recovery, SRDF/A Operating Principles, Distance and Latency Limitations.
NEW QUESTION # 22
A small financial company uses a PowerMax 2500 system with 3.84 TB drives in a RAID 6 (12+2) configuration with 48 drives. They have max cache configured on two node pairs. They need a capacity upgrade and want to use 15 TB drives in a RAID 5(8+1) configuration.
What is the minimum number of drives that have to be configured?
Answer: B
Explanation:
In Dell PowerMax 2500 systems running PowerMaxOS 10, storage configuration is governed by Flexible RAID (FlexRAID) technology , where physical resources are aggregated into disk groups. A fundamental architectural rule dictates that drives of different capacities can only be mixed within the same disk group if they are exactly one size tier apart (such as mixing 7.68 TB and 15.36 TB drives). Because this system introduces 15 TB drives into an environment running 3.84 TB drives, they cannot coexist in the existing disk group. A new, independent disk group must be created to accommodate the 15 TB capacity tier.
When establishing a new disk group under FlexRAID, the minimum drive count is determined by the selected RAID protection scheme's width plus the mandatory spare allocation. For a RAID 5 (8+1) configuration, the base RAID cluster width requires 9 drives (8 data + 1 parity). Furthermore, FlexRAID rules specify that each disk group containing up to 50 drives must include at least one spare drive . Adding the 9-drive RAID width to the 1 required spare drive results in a minimum requirement of 10 drives to properly initialize the upgrade.
Once established, future capacity upgrades within this disk group can scale in single-drive increments.
References: Dell PowerMax Design Course Guide, PowerMaxOS 10 Flexible RAID Architecture, PowerMax
2500 Capacity Upgrades and Scaling Rules.
NEW QUESTION # 23
A large financial institution has 25 PowerMax 2500 systems in the same data center and wants to deploy a centralized Unisphere server. The customer only has Linux servers with two-core, 2.5 GHz processor, 12 GB of memory, and 120 GB of disk space.
What is the minimum number of Unisphere servers that must be deployed for this environment?
Answer: A
Explanation:
Sizing a centralized Unisphere for PowerMax deployment requires balancing the performance metrics of the underlying host with the cumulative workload generated by the managed storage arrays. To manage a large- scale environment encompassing 25 PowerMax systems, standard Dell scaling guidelines recommend a
"Large" or "Extra Large" Unisphere deployment profile, which mandates a minimum of 16 CPU cores and 64 GB of RAM on a single host instance to handle the massive performance collection database and object counts.
Because the customer's available Linux infrastructure is constrained to low-spec hardware nodes (2 CPU cores and 12 GB RAM), a single server cannot satisfy the resource requirements for a unified instance of this scale. Attempting to manage all 25 systems on one such node would lead to severe memory exhaustion and performance tracking failures. To safely accommodate the infrastructure, the architecture must scale out horizontally by splitting the 25 arrays across multiple smaller Unisphere server instances. Each small deployment profile can safely support up to 10 arrays. Dividing the 25 target systems across this threshold ($25 \div 10 = 2.5$) dictates that a minimum of 3 discrete Unisphere servers must be deployed to remain within supported resource limits.
References/Topics: Dell PowerMax Design Course Guide, Unisphere for PowerMax Sizing and Scalability, Server Resource Profiles, Centralized Management Topology.
NEW QUESTION # 24
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