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EMC D-PSC-DS-01 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Management, Security and Identity Design | 24% | - Security and Identity
|
| PowerScale Infrastructure Design and Planning | 18% | - Requirements Analysis and Sizing
|
| Ecosystem Integration and Advanced Design | 8% | - Advanced Solutions
|
| Data Protection, High Availability and Disaster Recovery | 25% | - High Availability and Resilience
|
| Performance, Scalability and Multi-Protocol Design | 25% | - Performance Optimization
|
EMC Dell PowerScale Design v2 Sample Questions:
When scheduling jobs that include restripe or mark phases on a PowerScale cluster, which guideline should be followed to avoid resource contention?
- A. Run restripe and mark phases concurrently to reduce total runtime.
- B. Schedule restripe and mark phases at different times to prevent interference.
- C. Always run restripe and mark phases with other jobs of priority 1 to maximize resources.
- D. Restripe and mark phases automatically avoid resource contention and can run safely at any time.
Correct Answer: B 🗳️
A potential customer is considering replacing a four year old, Linux-based NFS server with 40TB of usable capacity. The existing system supports home directories, an internal website, and a content repository for the customer's content management system.
The customer is concerned about performance of any new solution because they expect to double workload in the content management system.
What tools can be used to collect performance data needed to size the new solution?
- A. Isi statistics and Wireshark
- B. Iostat and nfsstat
- C. Perfmon and sysstat
- D. Syslog and vmstat
Correct Answer: B 🗳️
While validating the value (VTV) with a large educational customer, they have decided they would like to add a Disaster Recovery (DR) site to their existing Isilon environment. The existing cluster contains six X-Series nodes.
They plan to have all workflows replicated to the DR site and both clusters will have identical shares, exports, and user authentication. The customer would like to test DR failover every six months by running their production environment from the DR site.
What would you recommend for the DR solution?
- A. SyncIQ and NL-Series nodes at the DR site
- B. SyncIQ and identical cluster at the DR site
- C. SmartConnect and NL-Series nodes at the primary site
- D. Equal number of S-Series nodes at the primary site
Correct Answer: B 🗳️
A potential customer requires 800TB 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 planning to deploy a scale-out NAS solution from a competitor of EMC.
Which factors can demonstrate a lower TCO using Isilon?
- A. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors
- B. Isilon linear scalability eliminates over buying and over provisioning
- C. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors
- D. Isilon uses lower speed NL-SAS drives which reduces overall power and cooling requirements
- E. Isilon linear scalability closely aligns with additional staff requirements as capacity grows
- F. An IDC study found that Isilon requires 95% less downtime per year compared to other solutions
- G. An IDC study found that Isilon requires 30% less downtime per year compared to other solutions
- H. Isilon linear scalability eliminates over buying and over provisioning
Correct Answer: B,F 🗳️
An architect is designing a solution for a new customer. The customer is going to use the cluster to store a large number of files that will be accessed by many users.
What IO optimization should be used and what kind of prefetching will take place?
- A. Concurrency, aggressive prefetching
- B. Random, aggressive prefetching
- C. Concurrency, moderate prefetching
- D. Concurrency, no prefetching
Correct Answer: C 🗳️
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