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E20-547 Study Notes

E20-547 Study Notes

E20-547 Exam Questions

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E20-547 VNX Solutions Specialist Exam for Storage Administrators

This exam focuses on the knowledge and activities involved in configuring and managing VNX Series Block - based storage SAN solutions (FC and iSCSI) and File- based NAS solutions (NFS and CIFS) in heterogeneous, virtualized, and open systems environments. This includes configuring and managing the array, host and client access, VNX SnapView, VNX SnapShot and VNX SnapSure solutions, and using Unisphere to configure, manage, and monitor VNX Series environments. Products: Products likely to be referred to on this exam include but are not limited to:
FAST
FAST VP
FAST Cache
Local Protection
VNX Snapshot
VNX SnapView
VNX SnapSure
Event and Retention
VNX Event Enabler
File Level Retention
Managing Host Access to File Storage

Data Mover networking
File systems and AVM
Exporting file systems for NFS
Exporting file systems for CIFS
Virtual Data Mover configuration and requirements
Usermapper
Data Mover high availability
EMC Data Protection Solutions Design  Important \product specific topics for Data Protection Advisor solutions design activities and sizing best practices

E20-547 | When creating a SnapView session…

Question: 34

When creating a SnapView session, where can a consistent start occur?

A. On multiple source LUNs
B. On multiple target LUNs
C. On multiple reserved LUNs
D. On multiple private LUNs

Answer: A

E20-547|How does host file system defragmentation of pool LUNs affect VNX performance?

Question: 29

How does host file system defragmentation of pool LUNs affect VNX performance?

A. Causes heavy loading of cache and back-end ports and may result in a decrease in system performance.
B. Does not cause additional VNX system load and will not affect system performance.
C. Causes heavy loading of cache and front-end ports and may result in a decrease in system performance.
D. Reduces loading of cache and back-end ports and may result in an increase in system performance.

Answer: A

e20-547|How do VNX Snapshots differ from VNX Snapview Snapshots?

Question: 28

How do VNX Snapshots differ from VNX Snapview Snapshots?

A. VNX Snapshots use redirect on first write.
SnapView Snapshots use copy on first write.
B. VNX Snaphosts use copy on first write.
SnapView Snapshots use redirect on first write.
C. VNX Snapshots require application I/O be stopped.
SnapView Snapshots do not.
D. VNX Snapshots support 64 snapshots per LUN.
SnapView Snapshots support 32.

Answer: A

Which troubleshooting step should be completed next?

Question: 27

A Storage Administrator created several new LUNs for an existing SAN attached Linux host. Some of the new LUNs are owned by SPA & some are owned by SPB. Linux can only see some of the new LUNs.
Which troubleshooting step should be completed next?

A. Check the EMC Host Connectivity Guide for Linux to verify the maximum number of LUNs visible to the host
B. Check the zoning to verify that all HBAs can see all of the ports on each Storage Processor
C. Check the agent.config file on the host to verify the maximum number of LUNs the host can manage
D. Check the LUN ownership of each LUN to make sure none are trespassed Real 69
EMC E20-547 Exam

Answer: A