Free EMC E20-880 Exam Dumps Questions & Answers

A customer has an application that uses a dataset of 15 TB. The skew for the application is 97%. The application requires storage capable of performing 10,000 IOPs. The application R/W ratio is
3:1
The VNX system for the application has the following disk configuration:
-Ten FAST Cache optimized 200 GB Flash drives -Ten FAST VP optimized 100 GB Flash drives -Twenty 600 GB 15 krpm SAS drives -Fifty 2 TB NL-SAS drives
The customer wants to implement the most efficient solution. How should the pool for the application be configured?

• A.  5x 200 GB FAST Cache optimized Flash configured 4+1 R5 5x 600 GB 15 krpm SAS drives configured as 4+1 R5 16x 2 TB NL-SAS drives configured as 6+2 R6
• B.  10x 100 GB FAST VP optimized Flash configured 4+1 R5 10x 600 GB 15 krpm SAS drives configured as 4+1 R5 8x 2 TB NL-SAS drives configured as 6+2 R6
• C.  5x 200 GB FAST Cache optimized Flash configured 4+1 R5 8x 600 GB 15 krpm SAS drives configured as 4+4 R1/0 16x 2 TB NL-SAS drives configured as 6+2 R6
• D.  5x 100 GB FAST VP optimized Flash configured 4+1 R5 10x 600 GB 15 krpm SAS drives configured as 4+1 R5 8x 2 TB NL-SAS drives configured as 6+2 R6

An Oracle database is stored on an EMC VNX storage array and replicated to a second VNX array at a DR location. EMC RecoverPoint is providing the replication.
According to best practices, how many Consistency Groups are required to provide application consistent recovery?

• A.  A single Consistency Group containing data files, undo logs, online redo logs, archived redo logs, and control files
• B.  Three Consistency Groups: (1) data files and undo logs; (2) online redo logs; (3) archived redo logs and control files
• C.  Two Consistency Groups: (1) data files, online redo logs, undo logs, and control files; (2) archived redo logs
• D.  Two Consistency Groups: (1) data files, control files, and undo logs; (2) online redo logs and archived redo logs

In reviewing a nar analysis, what does workload skew measure?

• A.  The percentage of data that would be demoted from FAST Cache
• B.  How much of the storage is handling the bulk of the workload
• C.  The percentage of data that has been moved to the Extreme Performance Tier
• D.  The distribution of the active data on the backend disks

A SQL Data Warehouse database is replicating between two VNX storage systems with Incremental San Copy. The production database is on 15, 15k rpm SAS drives and the Reserved LUN Pool uses five NL-SAS drives. The database is continuously updated locally and replicated once a day to maximize the benefits of write folding. Replication takes place from 6 PM until 10 PM. At 6 PM the storage administrator notices an increase in response time of the application, which steadily improves until 10 PM.
What should be done to improve performance during replication without affecting recovery data granularity?

• A.  Adjust the San Copy throttle to minimize the impact to the production application.
• B.  Put the Reserve LUN Pool on a similar disk and RAID type as the source volume.
• C.  Create a clone of the source volume and replicate the clone.
• D.  Expand the number of drives in the source volume to accommodate the increased I/O from the replication session.

A customer has recently implemented Microsoft Exchange 2010 on a VNX storage system that hosts a variety of application servers. The Exchange implementation is currently using RAID 5 (4+1) and uses FAST Cache for the database volumes, but is not using FAST VP. Performance has been significantly diminished.
What would you recommend to the customer?

• A.  Combine log and database volumes in a storage pool.
• B.  Implement a RAID 6 configuration.
• C.  Implement FAST VP.
• D.  Isolate server workload to dedicated set of spindles.