My Oracle Support Banner

Blacklisting by WWID Does Not Effect on OEL4 (Doc ID 780711.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux Kernel - Version: 4.7 to 4.7
Linux x86-64


You have OEL4U7 installed. To blacklist the local SCSI device (e.g. /dev/sda) by wwid, you modify the /etc/multipath.conf as follows:

blacklist {
    wwid     xxxx-xxxx-xxxx-xxxx

where wwid for /dev/sda is found by:
#scsi_id -g -u -s /block/sda
Then you apply the new configuration by:
#multipath -F
#multipath -v2

However, /dev/sda is still initialized as a multipath device.


You have OEL4U7 installed and use native device-mapper-multipath-0.4.5 rpm package.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process, and therefore has not been subject to an independent technical review.

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.