How to increase the read ahead support on devices, lvm volumes ?

Solution Verified - Updated -

Issue

  • How to increase the read ahead support on devices for a SAS server. Are there any best practice ?

  • Can we set the read ahead value at lvm level, on the block device or on all?

  • What is the default read ahead value globally?

Environment

  • Red Hat Enterprise Linux(RHEL) 6
  • Red Hat Enterprise Linux(RHEL) 5
  • LVM volume.

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.