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Dell E20-507 Exam Practice Questions (P. 3)

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Question #11
Which SRDF/A feature takes corrective action to slow host I/O rates to match the SRDF I/O service rates?
  1. A
    Write Pacing
  2. B
    Write Assist
  3. C
    Write-Protect-Bypass
  4. D
    Redirect-on-Write

Correct Answer:
A
Reference:
http://www.emc.com/collateral/TechnicalDocument/docu78897.pdf
(page 275 using SRDF/A write pacing)

Question #12
What is the maximum number of sessions and mode(s) of operation with Open Replicator on a VMAX3 array?
  1. A
    256 sessions; Push and Pull
  2. B
    512 sessions; Pull only
  3. C
    1024 sessions; Push and Pull
  4. D
    1024 sessions; Pull only

Correct Answer:
B
Reference:
http://www.informationwatch.net/collateral/TechnicalDocument/docu46988.pdf
(page 21)

Question #13
What can be used to minimize SRDF asynchronous replication from impacting SRDF synchronous replication on the same RF ports?
  1. A
    Use the symqos command to enable I/O resource distribution on the affected RF ports
  2. B
    Use the symqos command to set a RDF pace value for the SRDF asynchronous volumes
  3. C
    SRDF asynchronous and synchronous replication is not supported on the same RF port
  4. D
    Enable SRDF coordination for the asynchronous volumes

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

Question #14
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?
  1. A
    Snapshot will fail
  2. B
    Snapshot deltas will be allocated from the Reserved Capacity
  3. C
    Snapshot will persist but new snapshot deltas cannot be created
  4. D
    Snapshot will terminate

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

Question #15
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?
  1. A
    Copy to target will halt
  2. B
    Copy to target will fail
  3. C
    Tracks required for the copy will be allocated from the Reserved Capacity
  4. D
    Copy to target will continue and complete

Correct Answer:
B

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