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Computer101<br />
EE Admin
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I am looking at sizing a SAN for exchange. <br />
I have never used SANs before and am trying to understand the basics after going through some documentation.<br />
We may in future be sizing a SAN for an exchange site<br />
<br />
What I dont understand is it seems you size the storage according to exchange performance - i.e. number of disks, etc yet i see no references to exchage storage requirements in terms of size?<br />
<br />
It also seems the required storage in the example case studies far exceeds what may be necessary.<br />
<br />
Are the disks arranged purely for fast access times and in essence only &nbsp;a portion of the disks physical storage is used? how is this storage calculated?<br />
Would appreciate anyone who could ellaborate on this as much as possible.<br />
I want to get these basics straight in my own head befroe i start speaking to HP, EMC or any other SAN vendors.
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I am looking at sizing a SAN for exchange. 
I have never used SANs before and am trying to understand the basics after going through some documentation.
We may in future be sizing a SAN for an exchange site

What I dont understand is it seems you size the storage according to exchange performance - i.e. number of disks, etc yet i see no references to exchage storage requirements in terms of size?

It also seems the required storage in the example case studies far exceeds what may be necessary.

Are the disks arranged purely for fast access times and in essence only  a portion of the disks physical storage is used? how is this storage calculated?
Would appreciate anyone who could ellaborate on this as much as possible.
I want to get these basics straight in my own head befroe i start speaking to HP, EMC or any other SAN vendors.

Understanding SANs with regard to exchange sizing

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.