Blacklisting by WWID Does Not Effect on Oracle Linux 4
(Doc ID 780711.1)
Last updated on MAY 26, 2021
Applies to:
Linux OS - Version Oracle Linux 4.7 to Oracle Linux 4.7 [Release OL4U7]Oracle Cloud Infrastructure - Version N/A and later
Linux x86
Linux x86-64
Linux x86-64
Symptoms
You have Oracle Linux 4U7 installed. To blacklist the local SCSI device (e.g. /dev/sda) by wwid, you modify the /etc/multipath.conf as follows:
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.
Changes
You have Oracle Linux 4U7 installed and use native device-mapper-multipath-0.4.5 rpm package.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |