How to change I/O scheduler fo the specific device, not whole devices in RHEL 6 ?

Solution In Progress - Updated -

Issue

We want to change deadline I/O scheduler permanently for the specific device, not whole devices in RHEL 6. so found it at Red Hat's KCS article for whole devcies but not the specific devices.
How can we configure it as we purpose ?

Environment

Red Hat Enterprise Linux 6

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content