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1–Legacy vs. Open-iSCSI
Functional Flows
IS0054604-00 A 1-7
Functional Flows
This section provides functional flow diagrams for discovery, target login, and
session recovery.
13 CHAP CHAP settings are
applied using the QLogic
application
a
.
With CHAP support in
iscsiadm, CHAP entries can
now be added, deleted, and
listed from the user space.
Note: Before you
migrate, delete all
CHAP information
from Flash using
the QLogic applica-
tion
a
, and then
update the same
CHAP information
in the respective
node records using
iscsiadm com-
mands.
When migration
begins, any CHAP
information in the
Flash will be hon-
ored, but it must be
updated in the
node records using
iscsiadm.
Open-iSCSI CHAP
management is not
supported in RHEL
6.2 and SLES 11
SP2.
CTRL+Q options
let you set unidi-
rectional and bidi-
rectional CHAP
only for boot tar-
gets. In both mod-
els, CHAP
information for boot
targets is always
stored in Flash.
a
The QLogic management applications are iscli (SANsurfer
®
iSCSI CLI) and qaucli (QConvergeConsole
®
CLI).
Table 1-1. Differences Between IOCTL and Open-iSCSI Driver Models (Continued)
Serial
No.
Feature IOCTL-based Driver Open-iSCSI-based Driver Remarks