Free and Premium EMC D-ISM-FN-01 Dumps Questions Answers

Capacity planning reports in storage environments focus on:

Utilization trendsof storage systems (e.g., used vs. available space)

File system usage(volumes, file systems)

Ports (SAN/NAS connections)

This enables proactive capacity management and ensures enough resources are available to meet future demands.

In Ethernet networking, VLANs (Virtual Local Area Networks) are identified using a 12-bit VLAN ID field in the IEEE 802.1Q standard. Since 12 bits can represent 2¹² = 4096 unique values, the maximum number of VLANs that can be supported is 4096.

1024 and 2048: These values are less than the maximum and represent subsets of possible VLANs.

8192: This exceeds the 12-bit limit and is not supported by the standard.

FCIP (Fibre Channel over IP)is used totunnel Fibre Channel traffic over IP networks. Its primary use case:

Connecting local FC SANs to remote FC SANsfor disaster recovery and remote data replication.

Itencapsulates FC framesinto IP packets, transporting them over existing IP infrastructure.

Option B/C/D:iSCSI is not directly involved in FCIP’s primary function.

Storage Class Memory (SCM) bridges the gap between DRAM and NAND flash memory. It offers faster access times than flash memory but is still slower than DRAM. SCM provides non-volatile storage with performance characteristics closer to DRAM, making it suitable for applications requiring high-speed data access.

Intelligent storage systems incorporate advanced features like automated tiering, deduplication, and compression. These features enable efficient storage utilization and optimized management by automating data placement and reducing manual intervention.

Option A: While intelligent systems may facilitate cloud integration, they do not guarantee cost-free migration.

Option B: Data reduction features help, but the primary advantage is broader efficiency and optimization.

Option C: Creating silos increases complexity; intelligent systems aim to unify and simplify storage management.

To calculate the MTBF, we need to determine the total operational time and the number of failures.

Total operational time (Monday to Friday):5 days × 24 hours = 120 hours

Number of failures:3 (Tuesday, Thursday, Friday)

MTBF = Total operational time / Number of failures

MTBF = 120 hours / 3 = 40 hours

The exhibit shows a Fibre Channel (FC) switch connected to another FC switch. The port "X" is used for inter-switch link (ISL) connectivity, which is characteristic of anE_port (Expansion Port).

F_port (Fabric port):Connects an N_port (host or storage device) to a switch.

N_port (Node port):End device port in FC networks (like HBA in hosts or storage).

NL_port (Node Loop port):Used for Arbitrated Loop topologies.

E_port:Connects two FC switches together for ISL, which is exactly what's shown in the exhibit.

Astorage nodeis a component in a backup architecture that handles the actualdata movementduring the backup process:

Itorganizesthe backup data stream.

Itwritesthe data to the backup target (disk, tape, or cloud).

It does not manage policies or schedules (that’s the role of the backup server or management console).

Option A:Monitoring is done by the backup server or management tools.

Option C:Backup management (scheduling, policies) is also handled by the backup server.

Option D:Deduplication may be part of the process but is not theprimary roleof a storage node.

Data deduplication is a technique that eliminates redundant copies of data, storing only unique instances. When multiple copies of the same data are found, deduplication replaces them with references to a single stored copy, significantly reducing storage requirements.

Data replication:Involves copying data to another location for redundancy, not reducing storage size.

Data encryption:Secures data but doesn't affect storage size.

Data compression:Reduces data size by encoding information more efficiently but doesn't eliminate duplicates.

Log files record events and messages related to the operations of a virtual machine. They provide detailed information about the VM's behavior, errors, and system messages, which are crucial for troubleshooting.

Storage Class Memory (SCM) represents a new class of storage technology that bridges the gap between traditional DRAM and NAND flash memory. SCM offers significantly lower latency and higher endurance compared to NAND flash, making it the highest-performing storage medium currently available. Due to its advanced technology and performance characteristics, SCM is also the most expensive among the listed options.

FC (Fibre Channel):A network protocol used for high-speed data transfer, not a type of disk device.

SATA (Serial ATA):Commonly used in consumer-grade storage; offers lower performance and cost.

SAS (Serial Attached SCSI):Offers better performance than SATA but still lags behind SSDs and SCM.

SSD (Solid State Drive):Provides faster data access than HDDs but is outperformed by SCM.

SCM (Storage Class Memory):Combines the speed of DRAM with the persistence of NAND, offering unparalleled performance.

ACDP appliancesits in the data path and:

Intercepts all writesto the production volume.

Splits each write into two copies: one goes to the production volume, the other to the replica volume.

Maintains a journal for point-in-time recovery.

Option A/B/C: These are aspects of replication, but CDP’s primary function is real-time interception and splitting of writes.

Anincidentis anunplanned disruptionof a service or a reduction in its quality, often with anunknown root cause.

Incidents require immediate action to restore service.

Example: SAN switch port down, unexpected storage latency.

Support requestsare typically service requests, not incidents.

Impact actionsare more about changes, not incidents.

Events preventing correctionsmight be problems, not incidents.

Monitoringis the ongoing process of observing and tracking the performance and availability of IT infrastructure, including:

Storage devices

File systems

Ports and connectivity

It helps ensure service levels are met and detect potential issues.

Reporting: Summarizes data (often based on monitoring data).

Alerting: Notifies of specific events or thresholds (also uses monitoring data).

Infrastructure discovery: Detects and inventories devices.

Aread missoccurs when the data requested by the host isnotavailable in the cache. As a result, the storage system must fetch the data from the slower disk storage (back-end), leading to higher latency.

Cache hit:Data is already in cache → faster response.

Cache miss (read miss):Data not in cache → fetched from the disk.

NAS systemsare purpose-built to handle file sharing and provide:

Centralized file accessfor multiple clients.

Optimized file sharingthrough dedicated hardware and software.

Efficient managementwith file-level protocols (NFS, CIFS/SMB).

FC protocols(Option B) are for block storage, not NAS.

Object ID(Option C) relates to object storage, not NAS.

Speed (Option D): While NAS can offer good speed, its main advantage is shared file access.

The orchestration layer in a modern data center architecture is responsible for automating and coordinating complex tasks and workflows. It enables the integration and management of various services and resources to perform business operations efficiently.

Physical infrastructure:Comprises the hardware components.

Virtual infrastructure:Includes virtualized resources like VMs.

Services:Deliver specific functionalities to end-users.

GRC stands for Governance, Risk, and Compliance. It's a comprehensive framework that helps organizations align their IT operations with business objectives, manage risks effectively, and ensure compliance with internal and external regulations.

GDPR: A specific regulation focusing on data protection and privacy in the EU.

COBIT: A framework for IT governance and management, but not as comprehensive in risk and compliance aspects.

ITIL: Focuses on IT service management, not directly on governance or compliance.