apt install multipath-tools
systemctl enable multipathd
systemctl start multipathd
cat /etc/multipath.conf << EOF
blacklist {
devnode "^sda"
}
defaults {
user_friendly_names yes
path_grouping_policy multibus
path_selector "round-robin 0"
failback immediate
rr_min_io 100
path_checker tur
}
devices {
device {
vendor "DELL"
product "MD38xxi"
path_selector "round-robin 0"
path_grouping_policy multibus
path_checker tur
features "1 queue_if_no_path"
rr_min_io 100
failback immediate
}
}
EOF
systemctl restart multipathd
iscsiadm -m session --rescan