10-001 Exam Calculating Disk Requirements

I am studying for the 10-001 exam and am stumbling when calculating the number of disks that an application requires based the size of its file system and iops requirements. Can anyone point me to a whitepaper or knoweledge base article that goes over how to determine the disk sizing for both capacity and performance requirements?

Thank you in advance for your help.

Responses(2)

R

Richard_Butler

84 Posts

0

January 7th, 2013 04:00

Hi Karon,

This thread contains some calculations that may be helpful to you:

https://community.emc.com/message/525156#525156

Thanks, Richard.

A

Anonymous

5 Practitioner

•

274.2K Posts

1

January 2nd, 2013 08:00

You need to figure out both of these before you will have your answer.

DC = (Total capacity required)/(Capacity of a single disk)
Dp = (IOPS generated by an application at peak workload)/(IOPS serviced by a single disk)

Number of disks needed is the max between (1) and (2)

Hope this helps.

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10-001 Exam Calculating Disk Requirements