multipath 錯誤訊息

# multipath
Jun 03 10:00:50 | sdb: using deprecated getuid callout
Jun 03 10:00:50 | sdc: using deprecated getuid callout
Jun 03 10:00:50 | e0d0: ignoring map
Jun 03 10:00:50 | e0d1: ignoring map


這個原因是 , config 裡面的參數 , 有些不被 kernel 所支援
https://access.redhat.com/documentation/zh-TW/Red_Hat_Enterprise_Linux/6/html/DM_Multipath/config_file_multipath.html

會在cat /var/log/message 裡面看到
Jun  3 09:44:12 (none) daemon.warn multipathd: sdb: using deprecated getuid callout
Jun  3 09:44:12 (none) user.err kernel: [   33.157176] device-mapper: table: 252:0: multipath: unknown path selector type
Jun  3 09:44:12 (none) user.warn kernel: [   33.159276] device-mapper: ioctl: error adding target to table
Jun  3 09:44:12 (none) daemon.err multipathd: e0d0: failed in domap for addition of new path sdb

這個錯誤訊息是由
~/drivers/md/dm-mpath.c 所報錯的.

在kernel裡面開
make menuconfig  ->  Device Drivers --> Multiple devices driver support -->
Multipath target  開啟所需要的特色