EMC EMC Certifications E20-507 Questions & Answers

• Question 131:

  An application is using four VMAX3 devices. A TimeFinder SnapVX snapshot of the Storage Group containing these devices is created at 10 AM. The storage administrator adds another device to this Storage Group at 2 PM. A restore

  operation is performed at 3 PM using the snapshot.

  What will be the status of the newly added device, after the restore operation?

  A. Not Ready

  B. Read/Write enabled

  C. Write disabled

  D. Failed

  Correct Answer: A

  Reference: http://ireland.emc.com/collateral/TechnicalDocument/docu68926.pdf (page 28)

• Question 132:

  A TimeFinder SnapVX snapshot of source volumes has been linked to target volumes. The target volumes are being used for application testing. What should be done prior to a relink operation?

  A. Continue accessing the source volumes; stop accessing the target volumes

  B. Stop accessing the source volumes; continue accessing the target volumes

  C. Stop accessing the source and target volumes

  D. Continue accessing the source and target volumes

  Correct Answer: D

  Reference: http://ireland.emc.com/collateral/TechnicalDocument/docu68926.pdf

• Question 133:

  A storage administrator wants to continue using a TimeFinder SnapVX target from a host after the corresponding snapshot has been terminated. Which action will allow continued access to target data?

  A. Link with Copy mode

  B. Link with NoCopy mode

  C. Relink with NoCopy mode D. Restore the linked target to the production volume

  Correct Answer: A

• Question 134:

  What is a consideration when linking a TimeFinder SnapVX snapshot to a target Storage Group (SG) in Unisphere for VMAX?

  A. Target SG should not be in a Masking View

  B. Target SG should be in a Masking View

  C. Target SG should not be managed by the Optimized SLO

  D. Target SG should be managed by the Optimized SLO

  Correct Answer: B

  The target storage groups contain the linked-target devices of Production's snapshots. They should be added to a masking view to make the target devices accessible to the mount host. Reference: http://www.emc.com/collateral/white-papers/h14273-vmax3-timefinder-snapvx-microsoft-sql-server.pdf

• Question 135:

  A VMAX3 array has been configured with two Storage Resource Pools (SRP). Source volumes are assigned to SRP_1 and target volumes are assigned to SRP_2. A TimeFinder SnapVX snapshot of the source volumes is linked to the target

  volumes in the default mode.

  What will happen when there are new host writes to the source volumes?

  A. Snapshot deltas will be stored in SRP_1

  B. Snapshot deltas will be stored in SRP_2

  C. Snapshot deltas will be stored in the Reserved Capacity of SRP_1

  D. Snapshot deltas will be stored in the Reserved Capacity of SRP_2

  Correct Answer: B

  Reference: http://www.emc.com/collateral/white-papers/h14273-vmax3-timefinder-snapvx-microsoft-sql-server.pdf

• Question 136:

  The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An application is actively performing read and write

  I/Os to these devices. The snapshot is linked to the target in Copy mode. Allocation for the SRP reaches 85%.

  What will happen to the copy process?

  A. Copy to target will halt

  B. Copy to target will fail

  C. Tracks required for the copy will be allocated from the Reserved Capacity

  D. Copy to target will continue and complete

  Correct Answer: B

• Question 137:

  A Storage Group containing the source volumes on a VMAX3 array is managed by the Gold SLO. A TimeFinder SnapVX snapshot of this Storage Group is linked to the target volumes. The Storage Group containing the target volumes is

  managed by the Bronze SLO.

  Which SLO will be used to manage the snapshot deltas?

  A. Optimized

  B. Gold

  C. Bronze

  D. None

  Correct Answer: A

  Reference: http://www.emc.com/collateral/white-papers/h14273-vmax3-timefinder-snapvx-microsoft-sql-server.pdf (page 8)

• Question 138:

  The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An application is actively performing read and write

  I/Os to these devices. Allocation for the SRP reaches 85%.

  What will happen to the snapshot?

  A. Snapshot will fail

  B. Snapshot deltas will be allocated from the Reserved Capacity

  C. Snapshot will persist but new snapshot deltas cannot be created

  D. Snapshot will terminate

  Correct Answer: A

  Reference: http://ireland.emc.com/collateral/TechnicalDocument/docu68926.pdf

• Question 139:

  What is the maximum number of sessions and mode(s) of operation with Open Replicator on a VMAX3 array?

  A. 256 sessions; Push and Pull

  B. 512 sessions; Pull only

  C. 1024 sessions; Push and Pull

  D. 1024 sessions; Pull only

  Correct Answer: C

• Question 140:

  What can be used to minimize SRDF asynchronous replication from impacting SRDF synchronous replication on the same RF ports?

  A. Use the symqos command to enable I/O resource distribution on the affected RF ports

  B. Use the symqos command to set a RDF pace value for the SRDF asynchronous volumes

  C. SRDF asynchronous and synchronous replication is not supported on the same RF port

  D. Enable SRDF coordination for the asynchronous volumes

  Correct Answer: A

  Reference: http://nikhil-ram.blogspot.com/2013_04_01_archive.html