+++ This bug was initially created as a clone of Bug #1657672 +++

Description of problem:
In iSCSI offload Boot from SAN environment with multipath configuration, during OS boot
the iscsistart unnecessarily attempts to login to already logged in sessions thus causing delay in system boot.
 
Version-Release number of selected component (if applicable):
RHEL 7.6 GA

How reproducible:
Always 100% reproducible

Steps to Reproduce:
1. Install RHEL 7.6 GA OS on iSCSI LUN using QLogic Fastlinq CNA adapter via iSCSI offload path in mutipath configuration.
2. The OS installs successfully
3. On the first OS boot it is observed that iscsistart continuously attempts login to iSCSI sessions already being established.

[   81.531880] dracut-initqueue[2342]: iscsistart: version 6.2.0.874-10
[   82.535366] dracut-initqueue[2342]: iscsistart: initiator reported error (15 - session exists)
[   82.540439] dracut-initqueue[2342]: iscsistart: initiator reported error (15 - session exists)
[   82.545569] dracut-initqueue[2342]: Warning: 'iscsistart -b ' failed with return code 0

4. This adds delay in booting of OS.

Actual results:
The OS boot takes more than 5 mins to boot.

Expected results:
The OS should boot within less than 5 mins.

Additional info:
Adding OS boot logs showing multiple login attempts.

--- Additional comment from Nilesh Javali on 2018-12-10 09:27:23 UTC ---

Below are the multipath.conf settings,
cat /etc/multipath.conf
defaults {
        find_multipaths yes
        user_friendly_names yes
        polling_interval 5
        fast_io_fail_tmo 5
        dev_loss_tmo 10
        checker_timeout 15
        failback immediate
}