Definition

I/O blender effect

The I/O blender effect is a phenomenon in virtualized environments that degrades storage performance.  

The I/O blender effect occurs when multiple virtual machines (VMs) all send their input/output (I/O) streams to a hypervisor for processing. Under heavy work loads, I/O processes which might otherwise have been relatively sequential, become random.  This increases the read/write activity on disk heads, which in turn, increases latency. This randomization can occur with all virtualization platforms. 

Common methods used to reduce the I/O blender effect include overprovisioning and adding solid-state drives for caching.  

Contributor(s): Sarah Wilson
This was last updated in March 2013
Posted by: Margaret Rouse

Email Alerts

Register now to receive SearchVirtualStorage.com-related news, tips and more, delivered to your inbox.
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

More News and Tutorials

Do you have something to add to this definition? Let us know.

Send your comments to techterms@whatis.com

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: