e20-329

Looks somewhat grim.

I have the virtual training and experience with Avamar and some experience with DD/TSM so I hope to have a suucessful attempt at EMC World. At the very least the exam is 50% off with paid registration.

Hopefully I will have a reply for you next week!

I just passed my E20-329 exam on Monday 18/6/12, you need to try again and make sure you read in between the lines, The exam is for the BIG BOYZ  Good luck.

Can anyone explain how the answer 6 derived for the below question? I am looking for formula and no where it is explained.

A potential EMC Avamar customer with 1200 clients has a requirement to complete all their backups within four hours. Each backup is expected to take an average of 20 minutes.

Also for the question --

A customer is using EMC NetWorker Network Edition with two storage nodes to backup 200 servers in their data center. Every 20 servers are gathered in a backup group and each server has a parallelism of 4.

One day, the customer's storage administrator has added another 96 servers and distributes them equally on the existing backup groups. The administrator is concerned that four servers in each group have remained in a “waiting to run” state. This has caused the backup window to increase to a high level.

What is the total number of backup devices that can be created after resolving the issue?

How answer 64 is calculated?

Quick response will help.

Maybe refer to the EMC NetWorker Release 7.6 Service Pack 2

Integration Guide. I am also aware of an optimization guide that may spell this out as well.

I do remember parallelism recomendations suggets when you have 100+ clients it should be set to at least 16.

There just seems to be too many varibles in this question, almost as if it is an amalgamation of two scenarios.

Are you sure they are asking about backup devices?

Good Luck!

I would go through the practice tests and the scenarios (if you have them) and then use the product optimization guides to search for the correct answers. There is also a backup and recovery solutions guide that comes with the classes and perhaps is offered with the VILT training.

You will learn and remember better if you find those explanations on your own.

Thanks and Good Luck!

Thanks Jayzao... I am referring VILTs and associated student guides for course. I am not able to see any explanation for these type of questions but unfortunately they are asked into exam. I will try to find answers into sections mentioned by you.

Yes I had similar questions today in test and could not cleared. The above two are separate questions which are asked into EMC practice test. The actual questions into exams were similar one with changed figures.

--Vinod

You need to review this question, as you come about the number of backup device after you have resolved system in waiting state...

trying to figure out the correlation.

Azeez

About questions in test exam.

>A potential EMC Avamar customer with 1200 clients has a requirement to complete all their backups within four hours. >Each backup is expected to take an average of 20 minutes.

It's simple. To achive requirements we need to have  100 simultaneous clients connections (1200/4*0.333333, where 0.3333333 is 20 min). Each backup node support up to 18 simultaneous client connection (page 308 from Backup and Recovery Technologies course).

100/18 = 5.5555...   So we need  6 storage nodes

>A customer is using EMC NetWorker Network Edition with two storage nodes to backup 200 servers in their data >center. Every 20 servers are gathered in a backup group and each server has a parallelism of 4.

>One day, the customer's storage administrator has added another 96 servers and distributes them equally on the >existing backup groups. The administrator is concerned that four servers in each group have remained in a “waiting to >run” state. This has caused the backup window to increase to a high level.

>What is the total number of backup devices that can be created after resolving the issue?

>

>How answer 64 is calculated?

It also simple. In Network edition we have license for 16 physical device in base enabler plus 16 per each additional storage node (page 373 from Backup and Recovery design course). In beginning we have 1 networker server and 2 storage nodes (16*3=48 devices) And to resolve issue we will add 1 additional storage node and will have 16 * 4 = 64 devices

Best Regards,

Konstantin.