I setup CARP and HAST described as: https://www.freebsd.org/doc/en/books/handbook/disks-hast.html But not work on boot time because devd start before hastd. This patch for /etc/rc.d/devd looks work fine for me. ---- *** devd.old Mon Apr 27 22:57:42 2015 --- devd Mon Apr 27 22:57:17 2015 *************** *** 4,10 **** # # PROVIDE: devd ! # REQUIRE: netif # BEFORE: NETWORKING mountcritremote # KEYWORD: nojail shutdown --- 4,10 ---- # # PROVIDE: devd ! # REQUIRE: netif hastd # BEFORE: NETWORKING mountcritremote # KEYWORD: nojail shutdown