Free E20-326 Exam Dumps Preview

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?

Your customer is using Replication Manager to make local TimeFinder/Clone backups of their Microsoft Exchange 2010 environment. The customer reconfigured the Exchange environment to place the logs on the L:\ drive and mount the database on L:\SG1DB1. They updated the associated Replication Manager replica job to reflect the change. The customer reports that the mount of the database to the backup server now fails.

What do you advise the customer?

A customer plans to migrate mainframe and UNIX hosts from another vendor's array to an EMC Symmetrix. You are responsible for the design of the VMAX 20K solution that is to be replicated to a metropolitan bunker site. There is no tolerance for data loss.

Which input data sets do you need for a BCSD design of the replication solution?

A customer has a Symmetrix VMAX storage array configured with 99.9% utilization of raw storage capacity. The frame is configured with storage pools as shown in the exhibit. Note the following:

Pool P00400GE00R5 is 400 GB SSD RAID 5
Pool P02002TS72R6 is 2000 GB SATA RAID 6
Pool P01450GF15R1 is 450 GB FC 2-Way-Mir SRDF/A replication suspends regularly

Investigation shows that write pending values are too high for the R1 volumes. I/O requirements for the DSE pool are computed.
If DSE is used, where and how should the pool be built?

You are designing an SRDF over GigE solution.

What is a consideration to maximize TCP connection scaling?

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

Total I/Os per second = 30000
Write % = 20
Read block size = 4 KB
Write block size = 4 KB Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use.

How many OC3 links would you recommend?

Which two tools should be used to compute the Capacity Available for Active Replication (CAAR)?

When using Clone Emulation, which TimeFinder/Clone command represents the symmir establish command?

A TimeFinder/Snap of production data must be recreated in a two hour cycle throughout the day.

Which change tracker report will provide the best data for modeling a solution for the twenty-four hour period?

You are designing a Symmetrix VMAX SRDF/S over Fibre Channel solution. The production and remote data centers are 50 kilometers apart.

What is the expected write response time delay due to latency?

A colleague implemented cascaded SRDF for a VMAX technology refresh and site relocation activity.

The colleague reports they shutdown the hosts at production Site A and copied all data to the bunker Site
B VMAX. But they are unable to enable SRDF/S between Site B and remote Site C.

What should you advise them?

Which FAST VP control parameter defines the amount of time FAST VP should wait after a thin device is brought under FAST VP control before performing a data movement?

A customer is using SRDF/S to replicate a Symmetrix VMAX at the production site to the VMAX at the DR site. The sites are connected using a dedicated T1 link and are 38 km apart.

What will significantly improve the link service time between the 2 sites?

Refer to the Exhibit.

The illustration shows the workload characteristics of a DMX which is due to be upgraded to a VMAX.

Which conclusion can you draw?

Exhibit:

You have used BCSD to model an SRDF/A solution and have an SRDF/A risk analysis, as shown in the exhibit.

What should be your recommendation?

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 "N:\". You have decided on

RAID-5 protected 15,000 RPM drives for the new SQL database and RAID-1 for the transaction log.

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 87 GB worth of data.

Following EMC best practices, how many IOPS should be subtracted from the overall write IOPS, when calculating for the database writes?

Which factors contribute to response time elongation in an SRDF/S environment?

Which host-based performance tool should be used to gather data for Linux systems?

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?

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

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?

What are benefits of SRDF/A Multi-Session Consistency?

For which IO sizes is the SiRT feature enabled on Symmetrix VMAX arrays?

A customer plans to configure their new Symmetrix VMAX 20K. They want your advice on how to configure a storage pool. This new storage pool will handle large block, sequential write I/O.

What advice should be provided about RAID types as they relate to performance?

Refer to the exhibit.

What would you see if you place your cursor on the bottom left of the vertical axis (red section) of the graph in Tier Advisor?

Refer to the exhibit.

A company plans to deploy a two-engine Symmetrix VMAX array in their VMware vSphere environment.
The ESXi hosts will be connected to the VMAX array over a FC SAN.

What is the recommended best practice when zoning an ESXi host with two HBAs to the VMAX?

A customer is planning an Oracle 11g implementation. You have been asked to design the Oracle storage architecture. You recommend placing redo log files on separate drives from other Oracle files. Your customer wants an explanation of this architecture choice.

What best describes the reason for this EMC recommendation?

A customer is trying to perform an SRDF/A Consistent Mode Change. The change rejected repeatedly by the secondary array.

What could cause this condition?

A customer is using Virtual Provisioning on a Symmetrix VMAX that is being shared for production and non-production workloads.

What can be used to separate the different workloads?

Which statement is true relative to host-level performance measurement?

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 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?

Which database workload is suitable for an EFD configuration?

A customer plans to aggregate a number of CLARiiONs to a Symmetrix VMAX with FAST VP.

Which data collection requirements are recommended for a Tier Advisor analysis?

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

An SRDF/S implementation is being designed. The RA performance limits are 3800 4k IOPS for a Fibre RF adapter. The application is doing 6000 4k IOPS with 30% writes and uses multiple volumes.

How many RAs are recommended?