EMC E20-542 Dumps

You are designing an SRDF/S solution. Network bandwidth can be purchased in increments of single OC1 (52 Mb/s) links. Data compression is not in use. The workload profile is as follows:

Total I/Os per second = 30,000

Read block size = 4 KB

Write block size = 4 KB

Writes = 30%

How many OC1 links will provide sufficient bandwidth?

You are in the process of designing a VMAX3 solution. One of the applications requires performance equivalent to Flash disks. Which Service Level Objective should be recommended?

You are in a meeting with a customer describing the features of VMAX3 arrays. The customer wants additional information about the VMAX3 factory pre-configuration.

Which objects are pre-configured at the factory?

After performing a SRDF restore operation, what is the link state?

Refer to the Exhibit.

A storage administrator uses Unisphere for VMAX to review the workload for Storage Group mastermgmt_app1. How will storage be allocated for this Storage Group?

You have been tasked with designing a new VMAX3 array with VMAX Sizer. The customer is interested in SRDF/A and TimeFinder SnapVX for some of their applications.

Which VMAX Sizer page allows you to include SRDF/A, SnapVX, and set the desired SLO for these specific applications?

You are designing an SRDF/A solution with BCSD and the results of the model are shown in the exhibit. The BCSD model was run with the following settings:

Source Array: VMAX 200K, 2-engine, 2 TB cache

Number of RA Ports: 4

Network Circuit: 450 MB/s

Required RPO: 5 minutes

Which conclusion can be made based on the modeling results?

In addition to Storage, Hosts, Performance, and Support, which other Unisphere for VMAX sections are available for selection of an individual VMAX3 array?

You are discussing the design of a VMAX3 solution with a customer. The customer wants information about the performance data collected for FAST.

At which levels are FAST performance metrics collected on the array?

Which database does Unisphere for VMAX 8.0 use for Performance Analyzer?

What is a consideration when designing an SRDF/A solution between a VMAX3 array and an older VMAX 40K array?

What are the default percentages of RA CPU resource distribution for SRDF Synchronous, Asynchronous, and Adaptive Copy modes on VMAX3 arrays?

The Storage Group containing the source volumes on a VMAX3 array is managed by the Gold SLO. A TimeFinder SnapVX snapshot of this Storage Group is linked to target volumes. The Storage Group containing the target volumes is managed by the Bronze SLO.

Which SLO will be used to manage the snapshot deltas?

You are in a meeting with a customer describing the features of VMAX3 arrays. The customer wants to know more about VMAX3 configuration changes that can be performed with Unisphere for VMAX.

Which objects can be configured with Unisphere for VMAX?

You are in the process of sizing a new VMAX3 solution. One of the workloads will be replicated with TimeFinder SnapVX.

Workload Details:

Capacity = 10000 GiB

IOPS = 400

Change Rate = 25%

Mounted Snaps = 2

Mounted Copy IOPS = 20

How much additional capacity will the VMAX Sizer account for with this workload due to SnapVX?

A storage administrator uses Unisphere for VMAX to provision new storage from a VMAX3 array. Which Workload Type is recommended for a combination of small and large block I/O workload?

You are in the process of designing a VMAX3 solution for a customer. The customer has concerns about which SLO should be set for the applications that will be stored on the new array. They do not have any detailed information on the specific workloads.

What should be recommended?

A TimeFinder SnapVX snapshot of source volumes has been linked to target volumes. Target volumes are accessed by a host and changes are made. These changes need to be copied back to the source volumes.

Which mode should the target have been linked to enable a restore from them?

You need to model several SRDF/A workloads that require data consistency across all sessions. How should the multiple SRDF/A sessions be modeled?

Based on best practice, which drive combination is used in VMAX3 two-tier configurations?