mjhjmtu

I was able to successfully log into an ISCSI target by command

 command:sudo iscsiadm --mode node --targetname iqn.2010-06.com.XXXX-a215 --portal 10.X.X.X:3260, 1 --login
 output: Logging in to [iface: default, target:iqn.2010-06.com.XXXX-a215, portal: 10.X.X.X,3260] (multiple)
 Login to [iface: default, target:iqn.2010-06.com.XXXX-a215, portal: 10.X.X.X,3260] successful.

But when I perform ls -lh /dev/disk/by-path I am not able to find a device corresponding to the above-added target.

when I do iscsiadm -m session -P 3

Target: iqn.2010-06.com.XXX-a216 (non-flash)
 Current Portal: X.X.X.X:3260,1
 Persistent Portal: X.X.X.X:3260,1
 **********
 Interface:
 **********
 Iface Name: default
 Iface Transport: tcp
 Iface Initiatorname: iqn.1994-05.com.redhat:6da67798e2
 Iface IPaddress: X.X.X.X
 Iface HWaddress: <empty>
 Iface Netdev: <empty>
 SID: 1
 iSCSI Connection State: Unknown
 iSCSI Session State: LOGGED_IN
 Internal iscsid Session State: Unknown
 *********
 Timeouts:
 *********
 Recovery Timeout: 120
 Target Reset Timeout: 30
 LUN Reset Timeout: 30
 Abort Timeout: 15
 *****
 CHAP:
 *****
 username: <empty>
 password: ********
 username_in: <empty>
 password_in: ********
 ************************
 Negotiated iSCSI params:
 ************************
 HeaderDigest: None
 DataDigest: None
 MaxRecvDataSegmentLength: 262144
 MaxXmitDataSegmentLength: 1048576
 FirstBurstLength: 262144
 MaxBurstLength: 16776192
 ImmediateData: Yes
 InitialR2T: Yes
 MaxOutstandingR2T: 1
 ************************
 Attached SCSI devices:
 ************************
 Host Number: 3 State: running
 scsi3 Channel 00 Id 0 Lun: 0
 Attached scsi disk sdb State: running
Target: **iqn.2010-06.com.XXX-a215** (non-flash)
 Current Portal: X.X.X.X:3260,1
 Persistent Portal: X.X.X.X:3260,1
 **********
 Interface:
 **********
 Iface Name: default
 Iface Transport: tcp
 Iface Initiatorname: iqn.1994-05.com.redhat:6da67798e2
 Iface IPaddress: 10.15.235.74
 Iface HWaddress: <empty>
 Iface Netdev: <empty>
 SID: 4

a216 is able to show as sdb,a215 is not shown and the information about a215 when I did iscsiadm -m session -P 3 is pretty low.what does this mean?