Device Not Available After Reboot when Using iSCSI on RHEL/Rocky/AlmaLinux

iSCSI on RHEL/Rocky/AlmaLinux

• Device visible in lsscsi but not in multipath -ll
• Single path instead of multiple paths

Diagnostic Steps:

# Verify multipath service is running
systemctl status multipathd

# Check if devices are blacklisted
multipath -v3 2>&1 | grep -i blacklist

# Verify iSCSI sessions reconnect on boot
systemctl status iscsid
systemctl status iscsi

Ensure iSCSI auto-login:

# Enable auto-login for all targets
iscsiadm -m node -o update -n node.startup -v automatic

# Enable iSCSI services
systemctl enable iscsid
systemctl enable iscsi