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EMC D-PSC-DS-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| PowerScale Architecture and Concepts | - File system layout and data flow - OneFS architecture overview - Cluster components and node types |
| Monitoring, Troubleshooting, and Optimization | - Common design troubleshooting scenarios - Cluster health diagnostics - Performance monitoring tools |
| Networking Design for PowerScale | - SmartConnect configuration concepts - Client access and load balancing - Network topology design |
| Cluster Design and Planning | - Scalability considerations - Sizing and capacity planning - Workload assessment and performance design |
| Data Protection and Availability | - Erasure coding and replication strategies - Snapshot and snapshotIQ concepts - Failure domains and resilience design |
| Security and Access Control | - Authentication and authorization methods - Data encryption and security design - Role-based access control concepts |
| Storage Management and Data Services | - Protocol support (NFS, SMB, HDFS) - SmartPools tiering and data placement - Data lifecycle management |
EMC Dell PowerScale Design 2023 Sample Questions:
1. If snapshots are configured for the InsightIQ datastore on Isilon and the datastore is reverted to a previous snapshot, what might be the result?
A) InsightIQ datastore cannot be reverted
B) InsightIQ database will have to be manually copied from the snapshot
C) InsightIQ datastore could be corrupted
D) InsightIQ will not recognize the older copy of the database
2. Refer to the exhibit.
Which tool was used to create this output and which line item counts the metadata read operations occurring in the file service?
A) nfsstat and getattr
B) isi_netlogger and commit
C) iostat and fsstat
D) tcpdump and nfsstat
3. A customer is running OneFS 8.0 on an Isilon cluster exclusively consisting of NL400 nodes. The storage administrator recently heard that in OneFS 8.1.2 it is possible to use larger journals for higher performance.
What should you advise the storage administrator?
A) Add SSDs to all nodes of the existing cluster and upgrade to OneFS 8.1.2
B) Add A2000 nodes to the existing Isilon cluster and upgrade to OneFS 8.1.2
C) Replace the batteries of the battery backed volatile storage with NiMH batteries
D) Migrate all data from the current Isilon cluster to an H500 cluster
4. There is a requirement to use dynamic link aggregation to maximize throughput and resiliency on a new Isilon cluster servicing SMB and NFS data.
What is the recommended configuration for the physical network interfaces?
A) Active/passive failover
B) Round robin
C) LACP
D) FEC
5. What is the best case performance for Backup Accelerator when backing up to LTO-4 or LTO-5 drives?
A) 2.6 TB/hr
B) 3.4 TB/hr
C) 1.7 TB/hr
D) 864 GB/hr
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: A |

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