kernel: Buffer I/O errors in /var/log/messages.

Solution Verified - Updated -

Issue

  • Getting Buffer I/0 errors on unused EMC san luns:

  • I/O error is triggerting in the logs, as shown below:

kernel: Buffer I/O error on device sdb, logical block 0
kernel: Buffer I/O error on device sdc, logical block 0
kernel: Buffer I/O error on device sdd, logical block 0
kernel: Buffer I/O error on device sdf, logical block 6553631

Environment

  • Red Hat Enterprise Linux 5
  • 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