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Refer to the exhibit.

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You are proposing a storage solution using VNX to support a Microsoft Exchange 2010 virtual implementation on VMware ESXi. You have worked with the customer to understand the Exchange requirements, which are described in the exhibit. Based on availability, performance, and Exchange mailbox size requirements, you are recommending RAID 5 with 7.2K rpm NL/SAS drives.

Following EMC best practices, what is the minimum number of spindles that would be required for this environment?

A Customer is planning to build a VMware DTaaS environment on a VNX array. The customer is deciding what type of VM replicas would be acceptable in their environment. It needs to have a small footprint and contain frequently accessed data on SSDs drives.

What should be recommended?

When designing a SAN Copy migration what is the limitation of a SAN Copy Pull migration?

A Customer is creating a new configuration which requires a ratio of 10% reads and 90% writes. The configuration will also need to handle very small I/O sizes. The customer is also concerned about the performance of the new drives.

What RAID and drive configuration should be recommended?

During a white board session with your customer you explain the benefit of partition alignment. As an example, you use a 64 K write and explain the difference between a properly aligned partition RAID 5 4+1 and a misaligned partition.

If the partition is misaligned, how many disk operations will be performed for a RAID 5 4+1 write?

A VMware 5 customer is planning to upgrade their networking environment to 10 Gb Ethernet. They would also like to use real time vMotion to ensure balanced application load distribution throughout their environment. They are also currently running their VMware environment on 64bit, dual core processors.

What advice would you give to your customer to assist them with the upgrade of their environment?

Your customer has a 2,000 GiB traditional LUN containing a database of customer information. Data belonging to active customers is frequently accessed, but the majority of the data is static and seldom used. Your customer wants to implement block compression on the LUN.

What should your customer be made aware of?

Which function of MCC allows cache to dynamically react to workload changes?

A customer recently added a large number of new users to their VNX for Block storage system. They now notice that the system is slow. You have been asked to fix this problem. Their configuration uses only Classic LUNs. They have some unused Flash drives. Analysis shows that several LUNs have skew rates of 90% or higher.

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Which technology would you implement to solve their performance problem?

A customer's database resides on a RAID 5 Pool with SAS drives.

Which best practice should be followed to optimize Reserved LUN Pool disk performance?

A Customer is planning to build a VDI environment on a VNX array. The customer is working to determine what type of VM replicas would be acceptable in their environment. It needs to have best performance.

What could be recommended?

A customer has configured replication between Data Movers on two VNX arrays. In order to provide maximum network performance for the replication process, the customer has configured link aggregation on each Data Mover to provide two Gigabit Ethernet ports per Data Mover to the replication process. While reviewing performance reports the customer notices the replication network is using less than 30% of the available bandwidth.

What change will increase the efficiency of the replication network bandwidth?

A company has added a large number of users to a VMware VDI deployment. The users are complaining that the system (VNX-Block) is slow, especially when they start their shift. You have been tasked to provide an economical solution.

Which technology would you use to improve performance?

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. The customer is currently using a single Consistency Group for the Oracle database.

What would you recommend the customer do to ensure optimal recoverability?

A customer is implementing a VNX for File solution in a performance-oriented application environment.
There are Windows and Linux VM clients accessing the file systems. The customer wants to track both file system and Data Mover utilization. The administrator prefers GUI to CLI access.

Which utility should you recommend?

Click the calculator icon in the upper left-hand corner.

Your customer wants to use a SnapView Snapshot of a Pool LUN as part of their backup strategy. You need to determine whether or not the proposed RLP configuration will meet the performance requirement.
The source LUN performs 800 random 4 kB IOPS, with a 3:1 R/W ratio.

At what rate is chunk data written into the RLP when the session starts?

Refer to the exhibit.

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What is true of the I/O access pattern after 16:10?

You are conducting an analysis of a Celerra system to migrate the data to a new VNX Unified storage system. You want to measure the current connections for the CIFS/NFS protocol.

Which "server_stats" statistic type would you use to get the desired information?

A customer is designing an environment that utilizes thin LUNs on a pool. The customer makes capacity calculations before they create the thin LUNs, and determine that three thin LUNs are required. After the customer creates them they experience a capacity shortage.

How much overhead should the customer have calculated into the usable capacity for each thin LUN?

Click the calculator icon in the upper left-hand corner.

An application generates 500 random 8 kB IOPS with a R/W ratio of 3:1. An asynchronous mirror is started on the application LUN. The update cycle is configured to be 30 minutes, and updates take 15 minutes to complete. Assume that the data rate is constant.

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What is the minimum space that should be configured for the Reserved LUN Pool on the secondary VNX?

If the workload graph shows that most of the Storage Processor load is used to support a small amount of data, what could cause this utilization?

Which tool provides recommendations on how query processing performance can be improved by modifying physical design structures such as indexes, indexed views, and partitioning?

A customer would like to use five Ethernet ports on a VNX to increase the port and switch availability. Two non-stackable Ethernet switches are available for the VNX and both support Full Duplex communications.

How should the customer configure the VNX for the network?

A customer is running a data warehouse server with dual HBAs connected to a SAN . A performance analysis of the server shows high utilization. This server needs to be backed up to a SAN-attached backup device. The customer is concerned about production performance while backing up the data.

Which solution should be proposed?

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Refer to the Exhibit.

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VNX SAN Administrator is checking the load on the array. The administrator is trying to determine if this is an acceptable range (between 7130 and 7740).
Based on the illustration, what can you conclude?

A customer decides to oversubscribe a switch port group to optimize switch usage.

What factors need to be considered?

Replication Manager (RM) is being used to create replicas for a SQL server installed on VMFS residing on an ESX server. The operations are sent from a separate virtual RM proxy host. However, the RM is not able to successfully create copies.

What is the most likely cause of the failure?

A clone source LUN is 512 GiB in size. It performs 500 random 8 KiB IOPs with a 3:1 R/W ratio. As part of ongoing testing, the clone is fractured for 10 minutes and then resynchronized.
The testing is performed every hour.

How much data (to the nearest GiB) is read from the source LUN as part of the resynchronization process?

You received a call from a customer asking to help troubleshoot why AVM cannot select dVols from their remaining classic LUNS to create a stripe volume.
What could be a reason for this?

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You have designed an Auto-tiering solution using Flash, SAS, and NL-SAS disks in your storage pool.
Your design was implemented and scheduling has been running daily. The customer reports that there is no data in the NL-SAS tier.

Why is this the case?

A customer has a VNX system to provide storage for a VMware Cluster with five ESX hosts. Each ESX host has one dual-port FC HBA connected to two FC switches. They are using VMware native failover functionality for high availability and load-balancing.

The customer requires higher availability for the ESX host connectivity to the storage system.

What would you recommend to the customer?

A customer with an existing VNX for File implementation wants to enable deduplication on a file system, based on the following specifications:

Idle File System
Number of files: 1 M
Average file size: 50 KiB
Estimated deduplication: 30%

What is the estimated time for initial deduplication?

A storage administrator with a VNX Unified solution is using the CLI to monitor the daily storage performance. They must type long commands to examine the statistical types and names to get the desired results. You have been asked to accelerate and ease the monitoring tasks.

What is the most suitable solution?

Refer to the exhibit.

A customer is seeking insight about the data access profile on LUN 500, and has provided you the output shown in the exhibit. The Average Seek Distance (GB) parameter from Unisphere Analyzer shows a high value relative to the size of the disks that make up the RAID Group on which LUN 500 resides.

What can you determine about the data access profile of LUN 500?

A customer is trying to determine the correct configuration for an application they are planning to run on a VNX. The application consists of a heavy transactional workload with high (greater than 30%) random writes.

Which drive type and configuration would you recommend to the customer?

A customer recently added a large number of new users to their VNX for Block storage system. They now complain that the system is slow. You have been asked to fix this problem. Their configuration uses traditional LUNs exclusively. They have a number of Flash drives that are currently unused. Analysis of
their application environment shows that several LUNs have skew > 90%.

Which technology would you implement to solve their performance problem?