Definition

I/O blender effect

Contributor(s): Sarah Wilson

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.  

This was last updated in March 2013

Continue Reading About I/O blender effect

Dig Deeper on Storage for virtual environments

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchDisasterRecovery

SearchDataBackup

SearchConvergedInfrastructure

Close