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Dell EMC Exam E20-526 Topic 9 Question 42 Discussion
Actual exam question for
Dell EMC's
E20-526 exam
Question #: 42
Topic #: 9
[All E20-526 Questions]
Topic #: 9
Which SCSI instructions are used to build a bitmap of the changes between the first snapshot and subsequent snapshots when RecoverPoint is used with XtremIO?
Suggested Answer:
C
DIFF protocol - A vendor specific SCSI command which RecoverPoint uses to query XtremIO with in order to obtain a bitmap of changes between two snapshot sets.
RecoverPoint uses the output of DIFF command to read the actual data and transfer it to the target side.
References: EMC RECOVERPOINT REPLICATION OF XTREMIO, Understanding the essentials of RecoverPoint Snap-based replication for XtremIO, page 9
https://www.emc.com/collateral/white-papers/h14296-wp-recoverpoint-replication-of-xtremio.pdf
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