認証情報が異なるiSCSIセッションを複数張る

ターゲットを検索

# iscsiadm -m discovery -t sendtargets -p xxxx.xxxx.xxxx.xxxx:3260
xxx.xxx.xxx.xxx:3260,1 iqn.xxxx-xx.com.hoge:volume1
xxx.xxx.xxx.xxx:3260,1 iqn.xxxx-xx.com.hoge:volume2

それぞれのターゲットに認証情報を設定してログイン

# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.authmethod -v None
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.username -v ""
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.password -v ""
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.username_in -v ""
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.password_in -v ""
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1 -l
Logging in to [iface: default, target: iqn.xxxx-xx.com.hoge:volume1, portal: xxxx.xxxx.xxxx.xxxx,3260] (multiple)
Login to [iface: default, target: iqn.xxxx-xx.com.hoge:volume1, portal: xxxx.xxxx.xxxx.xxxx,3260] successful.

# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume2 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.authmethod -v CHAP
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume2 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.username -v username
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume2 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.password -v password
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume2 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.username_in -v username_in
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume2 -p xxx.xxx.xxx.xxx:3260,1 -o update -n node.session.auth.password_in -v password_in
# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume2 -p xxx.xxx.xxx.xxx:3260,1 -l
Logging in to [iface: default, target: iqn.xxxx-xx.com.hoge:volume2, portal: xxxx.xxxx.xxxx.xxxx,3260] (multiple)
Login to [iface: default, target: iqn.xxxx-xx.com.hoge:volume2, portal: xxxx.xxxx.xxxx.xxxx,3260] successful.

現在の認証設定を確認する場合は

# iscsiadm -m node -T iqn.xxxx-xx.com.hoge:volume1 -p xxx.xxx.xxx.xxx:3260,1
----中略----
node.session.auth.authmethod = None
node.session.auth.username = <empty>
node.session.auth.password = <empty>
node.session.auth.username_in = <empty>
node.session.auth.password_in = <empty>
----中略----

な感じで確認可能