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!

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