What is the difference between hp_tur and tur path checkers for device-mapper-multipath on Red Hat Enterprise Linux?

Solution Verified - Updated -

Issue

  • Starting RHEL 5.5, a new path checker was introduced: hp_tur. Have there been bugs reported on hp_tur when deviating from a standard tur option?
  • Can LUNs' WWID collision impact all types of HP storages?

Environment

  • Red Hat Enterprise Linux (RHEL), including:
    • Red Hat Enterprise Linux 5 (RHEL5)
    • Red Hat Enterprise Linux 6 (RHEL6)
  • device-mapper-multipath managing HP/Hitachi SAN's
  • Pathchecker is either tur (Test Unit Ready) or hp_tur.

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

New to Red Hat?

Learn more about Red Hat subscriptions

Close

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