Free PSC Storage Architecture & Design Questions and Answers — Questions and Answers
Question 1: What is the purpose of the Purity Operating Environment in Pure Storage systems?
- Manages external backup utilities
- Enables real-time virus scanning
- Powers data reduction, snapshots, and replication features (Correct answer)
- Acts as the physical layer of the array
Correct answer: Powers data reduction, snapshots, and replication features
The Purity Operating Environment is the intelligent software layer that powers Pure Storage systems. It is responsible for enabling key data services such as always-on data reduction (deduplication and compression), snapshots, and replication. Purity abstracts the underlying flash hardware, delivering a highly efficient and resilient storage platform.
Question 2: Which of the following best describes the Pure Storage FlashArray architecture?
- Hybrid disk-flash based solution
- All-flash storage array with always-on data services (Correct answer)
- Object-based archival system
- Software-defined storage only
Correct answer: All-flash storage array with always-on data services
The Pure Storage FlashArray is characterized as an all-flash storage array designed for high performance and reliability. Its architecture integrates always-on data services like deduplication, compression, and snapshots directly into the system. This combination provides a powerful, efficient, and resilient storage solution for enterprise workloads.
Question 3: Which feature helps Pure Storage achieve data reduction?
- Compression & deduplication (Correct answer)
- Hardware RAID only
- Encrypted snapshots
- Port mirroring
Correct answer: Compression & deduplication
Pure Storage achieves significant data reduction through the use of compression and deduplication technologies. Deduplication identifies and eliminates redundant data blocks, while compression further reduces the size of the remaining unique data. These processes work continuously and in-line to maximize storage efficiency and lower operational costs.
Question 4: What role do DirectFlash Modules play in Pure Storage architecture?
- Acts as network switches
- Stores operating system configuration
- Delivers raw flash to software for maximum efficiency (Correct answer)
- Controls power supply units
Correct answer: Delivers raw flash to software for maximum efficiency
DirectFlash Modules (DFMs) are Pure Storage's proprietary flash storage devices that deliver raw flash directly to the Purity software. Unlike traditional SSDs with their own controllers, DFMs allow the Purity operating environment to manage the flash at a granular level. This unique approach maximizes efficiency, performance, and endurance of the flash media.
Question 5: Which protocol is commonly supported by Pure Storage FlashArray for block storage?
- NFS
- SMB
- iSCSI & Fibre Channel (Correct answer)
- SFTP
Correct answer: iSCSI & Fibre Channel
Pure Storage FlashArray commonly supports industry-standard block storage protocols such as iSCSI and Fibre Channel. These protocols are essential for connecting servers and applications to the storage array, enabling high-performance data access. This broad protocol support ensures compatibility with diverse enterprise IT environments.
Question 6: Which Pure Storage solution is used for container-based persistent storage?
- FlashBlade
- Pure Service Orchestrator (Correct answer)
- Pure1
- DirectFlash Shelf
Correct answer: Pure Service Orchestrator
Pure Service Orchestrator (PSO) is Pure Storage's solution specifically designed for container-based persistent storage. It integrates with Kubernetes to provide dynamic provisioning and management of block and file storage for containerized applications. PSO ensures that containers have reliable, high-performance storage that can scale with their needs.
Question 7: What is the purpose of Pure1 in the Pure Storage ecosystem?
- Backup appliance
- Array operating system
- Cloud-based management and analytics platform (Correct answer)
- CLI interface for firmware upgrade
Correct answer: Cloud-based management and analytics platform
Pure1 is Pure Storage's cloud-based management and analytics platform. It provides customers with global visibility, predictive analytics, and proactive support for their Pure Storage arrays. Pure1 offers real-time monitoring, performance insights, and AI-driven recommendations, simplifying storage management and optimizing operations.
Question 8: How does Pure Storage provide data protection in its architecture?
- Uses RAID 0 exclusively
- Relies only on external backup tools
- Incorporates snapshots, replication, and RAID-HA (Correct answer)
- Depends on third-party antivirus software
Correct answer: Incorporates snapshots, replication, and RAID-HA
Pure Storage provides robust data protection within its architecture through a combination of integrated features. This includes snapshots for point-in-time recovery, replication for disaster recovery, and RAID-HA (High Availability) for protection against drive failures. These mechanisms ensure data integrity and availability, minimizing downtime and data loss.
Question 9: Which statement is true about Pure Storage scalability?
- Scaling requires complete data migration
- FlashArray scales seamlessly with minimal disruption (Correct answer)
- Only supports vertical scaling
- Does not allow live upgrades
Correct answer: FlashArray scales seamlessly with minimal disruption
Pure Storage FlashArray is designed for non-disruptive upgrades and expansion, a core tenet of its Evergreen architecture. Its modular design allows for controllers and storage capacity to be added or upgraded independently. This ensures that performance and capacity can scale seamlessly without requiring downtime or complex data migrations, maintaining continuous operation.
Free PSC Storage Architecture & Design Questions and Answers
What is the purpose of the Purity Operating Environment in Pure Storage systems?