E20-326 Online Practice Questions and Answers

You are designing a new VMAX implementation. All applications will share physical drives and participate in SRDF/S replication.

The customer has two high I/O applications used for OLTP and a several low I/O applications used for testing. The customer wants to ensure the high I/O applications take precedence over the low I/O applications on the VMAX array. What do you recommend?

A. Implement Symmetrix Priority Controls.

B. Configure striped metavolumes.

C. Implement SRDF Consistency Groups.

D. Configure concatenated metavolumes.

Which information is needed when designing an Open Replicator solution?

A. Remote array serial number and devices, control and remote front end ports.

B. Remote array serial number, Open Replicator control host, SRDF device pairing file.

C. TDATs to replicate, remote array serial number, Tier Advisor.

D. SYMMERGE, TDATs to replicate, Open Replicator software.

You are designing an SRDF/S solution. The workload profile is:

Total I/Os per second = 10000

Write % = 25

Read block size = 8 KB

Write block size = 8 KB

Network bandwidth can be purchased in increments of single T3 (45 Mb/s) links. Data compression is not in use. How many T3s links would you recommend?

A. 6

B. 2

C. 4

D. 8

Using the default the 5875 SRDF/A cycle time, what is the recovery point objective in seconds?

A. 60

B. 30

C. 90

D. 120

A customer plans to configure a storage pool on their new Symmetrix VMAX 20K. The pool must be able to withstand a dual drive failure and still offer guaranteed data access.

Which RAID type should be used?

A. Striped RAID 1

B. RAID 5

C. RAID 6

D. RAID type does not matter

A Symmetrix VMAX hosts four applications. Each application is assigned a named Dynamic Cache Partition. Two of the partitions are static and two are flexible. The write pending limit for each partition is set to 60%.

What will happen if an application running in a flexible partition reaches the write pending limit set for that partition?

A. Host write activity to that partition will be throttled

B. Cache will be borrowed from the other flexible partition

C. Cache will be borrowed from the default partition

D. Write pending limit of the partition will be raised to 80%

By default, how much storage is allocated when a thin device is bound to a pool?

A. 1 extent

B. 1 track

C. 12 extents

D. 64 tracks

What is the maximum number of wavelengths that can be multiplexed on a single optical fiber over CWDM?

A. 8

B. 16

C. 32

D. 160

A customer has implemented an Oracle application on a Symmetrix VMAX with a mix of Enterprise Flash Drives (EFD) and FC 15K drives. EFD are configured in RAID 5, and FC 15K drives are configured both in RAID 5 and RAID 1. In terms of IOPS activity, reads are predominant over writes. The customer decided to place a portion of the database in each tier.

Which Oracle database object(s) is suitable for placing on the FC 15K RAID 1 drives?

A. Redo log files

B. Data files

C. Index files

D. Temp file

A customer plans to migrate existing AIX, HP-UX, and Windows hosts from a Symmetrix DMX-3 to a new VMAX array. You need performance data from the existing array to configure the layout of the new VMAX volume configuration.

Which tools can be used to collect Symmetrix array performance data?

A. ControlCenter Performance Manager STP Collector

B. EMC Workload Generator STP Navigator

C. Storage Configuration Advisor STP Collector

D. ControlCenter Performance Manager SymmMerge