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
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