ubuntu 20.04 mutipath error

syslog 에 아래와 같은 에러 메세지가 지속적으로 발생

root@master:~# journalctl -xe
Nov 23 23:38:46 master multipathd[516]: sdb: add missing path
Nov 23 23:38:46 master multipathd[516]: sdb: failed to get udev uid: Invalid argument
Nov 23 23:38:46 master multipathd[516]: sdb: failed to get sysfs uid: Invalid argument
Nov 23 23:38:46 master multipathd[516]: sdb: failed to get sgio uid: No data available
Nov 23 23:38:51 master multipathd[516]: sdb: add missing path
Nov 23 23:38:51 master multipathd[516]: sdb: failed to get udev uid: Invalid argument
Nov 23 23:38:51 master multipathd[516]: sdb: failed to get sysfs uid: Invalid argument
Nov 23 23:38:51 master multipathd[516]: sdb: failed to get sgio uid: No data available
Nov 23 23:38:56 master multipathd[516]: sdb: add missing path
Nov 23 23:38:56 master multipathd[516]: sdb: failed to get udev uid: Invalid argument
Nov 23 23:38:56 master multipathd[516]: sdb: failed to get sysfs uid: Invalid argument
Nov 23 23:38:56 master multipathd[516]: sdb: failed to get sgio uid: No data available

 

 

해결방법 

1. /etc/multipath.conf 파일에 아래의 내용을 추가 

defaults {
    user_friendly_names yes
}
blacklist {
    devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st|sda)[0-9]*"
    devnode "^sd[a-z]?[0-9]*"
}

 

2. multipath restart 

/etc/init.d/multipath-tools restart