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An architect is designing a cost-effective PowerStore solution in sizer that is expected to perform in the event of a node failure without impacting the max performance. What must be considered?
Designing for Node Failure:
Ensuring a PowerStore solution performs optimally even in the event of a node failure requires careful consideration of performance thresholds.
Max Performance Saturation:
Setting the Max Performance Saturation to 50% during the sizing process ensures that in the event of a node failure, the remaining node can handle the load without performance degradation.
This conservative approach allows the system to operate within safe performance limits, maintaining high availability and performance.
Other Options:
Disaster Recovery Site: Important for overall business continuity but does not directly address performance during a node failure within the same site.
Performance Growth: Setting Performance Growth to 50% focuses on future growth rather than immediate redundancy considerations.
Higher Model: While providing a higher model can offer more resources, it is not as cost-effective as optimizing the performance saturation setting.
Dell Midrange Storage Reference:
Dell PowerStore documentation provides detailed guidelines on performance optimization and high availability configurations.
Community forums and support resources from Dell Technologies offer insights into best practices for sizing and redundancy.
What is the minimum number of IP addresses for optimal performance of PowerStoreX?
The minimum number of IP addresses for optimal performance of PowerStoreX is 6. These IP addresses are required for management, replication, and data path operations, ensuring efficient and reliable system performance.
Dell EMC PowerStoreX Networking Configuration Guide.
Dell EMC PowerStore Best Practices Guide.
Which two statements are correct in reference to an NVMe Expansion Enclosure attached to a PowerStore? (Select 2)
The NVMe Expansion Enclosure attached to a PowerStore system includes slots for 25 2.5-inch NVMe drives and supports the use of NVMe Storage Class Memory (SCM) drives. These features allow for high-performance storage expansion with low latency and improved efficiency.
Dell PowerStore NVMe Expansion Enclosure Specification Sheet.
Dell Technologies documentation on NVMe SCM drive support.
What is the maximum throughput per port in backend 12 GB SAS ports in Dell Unity XT arrays?
The maximum throughput per port in backend 12 Gb SAS (Serial Attached SCSI) ports in Dell Unity XT arrays is 2500 Mbps. SAS ports are used to connect storage devices and provide high-speed data transfer capabilities:
12 Gb SAS Standard: The 12 Gb SAS standard supports high data transfer rates, making it suitable for enterprise storage systems that require robust performance and reliability.
Performance Metrics: Each 12 Gb SAS port can achieve up to 2500 Mbps, which translates to approximately 2.5 Gbps of throughput, supporting high-performance storage operations.
A company has a Dell Unity XT 880 at its Boston site providing file storage for a business production application. The company has a second remote site 8 km (5 mi) away in Cambridge. A third site is in New York (342 km (213 mi) from the Boston site). How can the same production data be protected against system outage with a zero RPO and a maximum of 15 minutes RPO data recovery?
Dell Unity XT offers both synchronous and asynchronous replication to protect data and ensure business continuity.
Synchronous replication is used for zero RPO, ensuring no data loss, but it is typically limited to shorter distances due to latency concerns.
Asynchronous replication is suitable for longer distances and provides near real-time data protection with a minimal RPO.
Distance Considerations:
The distance between Boston and Cambridge (8 km) is suitable for synchronous replication, providing zero RPO.
The distance between Boston and New York (342 km) is better suited for asynchronous replication due to latency, ensuring data recovery with a minimal RPO, such as 15 minutes.
Optimal Replication Strategy:
Synchronous replication from Boston to Cambridge ensures zero RPO for critical data protection.
Asynchronous replication from Boston to New York provides additional data protection with a 15-minute RPO, suitable for longer-distance disaster recovery.
Dell Midrange Storage Reference:
Dell Unity XT documentation and best practices provide detailed guidelines on configuring synchronous and asynchronous replication.
Community forums and support resources from Dell Technologies offer insights into real-world implementation strategies.
