A TimeFinder/Snap of production data must be recreated in a four hour cycle throughout the day. Which change tracker report will provide the best data for modeling a solution for the twenty- four hour period?
A. Delta report reset every four hours
B. SUM report over four hours
C. Delta report reset every twenty four hours
D. SUM report over twenty four hours
A customer wants to implement virtual provisioning on a new VMAX array and is concerned about efficient use of available storage and application performance.
The VMAX environment will have file system, database and document repository hosts. The customer reports the system hosts append data to the file system, the database hosts use auto- extend and the document repository hosts have low performance and growth requirements. How should you recommend the host storage be provisioned on the VMAX array?
A. File system storage on traditionally provisioned volumes; database and document repository storage on thin volumes.
B. File system, database and document repository storage on thin volumes.
C. File system and database storage on thin volumes; document repository storage on traditionally provisioned volumes.
D. File system, database and document repository storage on traditionally provisioned volumes.
A customer wants to protect production data using local and remote replication on a pair of VMAX arrays located 100 km apart. Both VMAX arrays are fully configured with virtually provisioned thin volumes.
The customer has a near zero Recovery Point Objective (RPO) and wants to replicate the production
volumes to the remote array, while maintaining a separate backup copy of the production data on the local
array.
Which replication options do you recommend they implement?
A. TimeFinder/Snap and SRDF/A.
B. TimeFinder/Clone and SRDF/S.
C. TimeFinder/Mirror and SRDF/S.
D. TimeFinder/Clone and SRDF/DM.
You are designing a Symmetrix VMAX SRDF/S over GigE solution. The production and remote data centers are 100 kilometers apart. What is the expected write response time delay due to latency?
A. 0.5 ms
B. 2 ms
C. 4 ms
D. 1 ms
Which host-based performance tool should be used to gather data for Linux systems?
A. IOSTAT
B. SAR
C. PERFMON
D. NAR
Your customer is adding a new database application. You are asked to design a solution to expand the current SRDF/S implementation on the customer's two Symmetrix VMAX arrays to account for this growth. As part of the sizing, you notice that the two RA ports are at 85% utilization.
What should you tell your customer that the solution requires?
A. At least two more RAs are required
B. At least one more RA is required
C. No additional hardware is required
D. More memory is required
You need to model several SRDF/A workloads that require data consistency across all the sessions. How would you model the multiple SRDF/A sessions?
A. In BCSD, link them by creating a Composite Group
B. In SymmMerge, link them by creating a Composite Group
C. In BCSD, link them by creating a Logical Relationship
D. In SymmMerge, link them by creating a Logical Relationship
You have been assigned to gather performance data for a Microsoft SQL server database that will be migrated to a Symmetrix VMAX. Which Perfmon counter must be measured prior to designing a disk layout?
A. Physical Disk\Disk Writes/sec
B. Physical Disk\Avg. Disk sec/Write
C. Logical Disk\Avg. Disk Bytes/sec
D. Logical Disk\Disk Write Bytes/sec
A customer is planning a technology refresh. The proposed migration will make use of Open Replicator Hot Pull.
Which Open Replicator Hot Pull feature allows them to minimize the possibility of data loss during the migration?
A. Donor Update
B. Symmetrix Differential Data Facility
C. Protection Bitmap
D. Symmetrix Track Table
You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally-attached disk enclosure, mounted to "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday through Friday as shown in the exhibit. During an average business day, the transaction log processes 43 GB worth of data.
Following EMC best practices, which discount can be taken from the overall write IOPS when calculating for the database writes?
A. 196
B. 392
C. 597
D. 989
