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EMC E22-258 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Installation and Initial Configuration | 20% | - Physical and virtual XMS deployment - Cluster setup and networking configuration - Initial system configuration and licensing - Storage controller and network connectivity |
| XtremIO Architecture and Concepts | 25% | - XMS (XtremIO Management Server) functionality - Data efficiency technologies: deduplication, compression, thin provisioning - Hardware and software components overview - Scale-out architecture and X-Brick components |
| Maintenance and Troubleshooting | 10% | - Component replacement and cluster expansion - Software upgrades and patching - Common issues and troubleshooting procedures - Support log collection and diagnostics |
| Management, Monitoring and Performance | 20% | - Performance monitoring and optimization - XtremIO GUI and CLI administration - Integration with VMware and other hypervisors - Alerting, logging and system health checks |
| Provisioning and Data Services | 25% | - Data-at-Rest Encryption (D@RE) implementation - Volume creation, mapping, and presentation - Snapshot management and space efficiency - Replication configuration and disaster recovery |
EMC XtremIO 3.x Flash Storage Solutions Sample Questions:
Question 1
The XtremIO Management Server (XMS) reports that an XtremIO cluster has a compression ratio of 1.7:1 and a deduplication ratio of 3.1:1. What is the reported data reduction ratio?
A. 4.8:1
B. 0.6:1
C. 1.8:1
D. 5.3:1
Question 2
What should I/O elevators be configured to for XtremIO storage?
A. lowseek
B. optimize
C. random
D. noop
Question 3
Why do the 10 TB and 20 TB XtremIO X-Bricks have a different logical:physical capacity ratio?
A. 800 GB SSDs do not support inline compression
B. Storage Controllers on 20 TB X-Bricks keep more SSD metadata in memory
C. 400 GB SSDs do not support inline compression
D. Storage Controllers on 20 TB X-Bricks have a more efficientdeduplication algorithm
Question 4
What is the recommended disk provisioning policy for VM virtual disks on XtremIO storage arrays?
A. Thin Provision Lazy Zeroed
B. Thick Provision Lazy Zeroed
C. Thick Provision Eager Zeroed
D. Thin Provision Eager Zeroed
Question 5
What is a characteristic of XtremIO iSCSI connectivity?
A. Port 3260 must be used
B. VLANs must be in the 0-127 range
C. Only two iSCSI ports can be connected to a single host
D. iSCSI ports must be on the management port subnet
Solutions:
| Question 1 Answer: D | Question 2 Answer: D | Question 3 Answer: B | Question 4 Answer: C | Question 5 Answer: A |
