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EMC D-PSC-DS-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Monitoring, Troubleshooting, and Optimization | - Performance monitoring tools - Cluster health diagnostics - Common design troubleshooting scenarios |
| Topic 2: Networking Design for PowerScale | - Client access and load balancing - Network topology design - SmartConnect configuration concepts |
| Topic 3: Data Protection and Availability | - Erasure coding and replication strategies - Snapshot and snapshotIQ concepts - Failure domains and resilience design |
| Topic 4: PowerScale Architecture and Concepts | - File system layout and data flow - Cluster components and node types - OneFS architecture overview |
| Topic 5: Storage Management and Data Services | - SmartPools tiering and data placement - Data lifecycle management - Protocol support (NFS, SMB, HDFS) |
| Topic 6: Cluster Design and Planning | - Sizing and capacity planning - Workload assessment and performance design - Scalability considerations |
| Topic 7: Security and Access Control | - Role-based access control concepts - Authentication and authorization methods - Data encryption and security design |
EMC Dell PowerScale Design 2023 Sample Questions:
1. Which directory path is the recommended PowerScale directory structure?
A) /ifs/<cluster>/<access zone>/<pool>/<pod>/<share>
B) /ifs/<cluster>/<access zone>/<pod>/<pool>/<share>
C) /ifs/<access zone>/<cluster>/<pool>/<pod>/<share>
D) /ifs/<cluster>/<pool>/<access zone>/<pod>/<share>
2. A potential customer requires 800 TB of usable capacity to store medical images for their network of health clinics. The IT department has limited staff and currently manages four storage arrays from other vendors.
During a meeting with the Director of IT you learn that the company is considering a solution from a competitor of EMC using two of the existing arrays and two new arrays.
Which Isilon capabilities would show a better ROI for the customer?
A) Forward Error Correction overhead is 7% lower than traditional RAID.
Isilon has 6%-12% less filesystem overhead than traditional clustered filesystem solutions.
According to an IDC study, Isilon improves IT productivity by nearly 50% compared to traditional competitors.
B) Isilon has 6%-12% less filesystem overhead than traditional clustered filesystem solutions.
With a single filesystem and virtual capacity for drive and node failures, Isilon utilization is typically 80% or higher.
Isilon utilization is typically 80% or higher due to use of a single filesystem and virtual capacity for drive and node failures.
C) With a single filesystem and virtual capacity for drive and node failures, Isilon utilization is typically
80% or higher.
OneFS compression results in higher effective capacity within the cluster.
Traditional clustered filesystems require 4%-10% internal overhead compared to Isilon virtual capacity.
D) Isilon has 15%-20% less overhead than traditional clustered filesystems.
According to an IDC study, Isilon utilization is nearly 50% higher than traditional competitors.
Isilon QOS headroom and multiple node pools ensures consistent performance up to 80% utilization.
3. What is a consideration when using SnapshotIQ?
A) COW is used for all except large sequential writes.
B) ROW is used for all except inode changes.
C) ROW is used for small changes; COW is used for large changes.
D) COW is used for small changes; ROW is used for large changes.
4. A potential customer has about 540TB of NetApp running in ONTAP 7-Mode. They are willing to let you gather some workload data. They have LDAP and Active Directory authentication and primarily Windows Clients. They are very interested in Automated Tiering and Large Scale Archives.
They are not certain about the workflows from the Marketing Department. The Content Team will only say they need to acquire 300 TB within 90 days. They do not know the average file size or the number of aggregates they are managing.
Which tools would you use to gather information to do your Isilon sizing?
A) MiTrend WPA, Autosupport, and PerfCollect
B) Isilon Insight IQ, OnCommand Insight, and nfsstat
C) Wireshark, isi statistics, and iostat
D) isi status, isi_netlogger, and PerfMon
5. Which OneFS feature enables you to host multiple tenants from mutually untrusting AD authentication environments from the same DNS namespace?
A) Access Zones
B) SmartQuotas
C) Groupnets
D) SmartConnect
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: A |






