Operational Restrictions - HP StorageWorks XP128 User Manual

Table 14 shows the relationship between the combinations of port settings and the connection results.
Irrespective of whether a host is configured for port authentication using CHAP, the connection results are
as follows, unless otherwise noted.
Table 14 Combinations of iSCSI port settings and connection results
.
Port settings
Authentication:
at port
ON
ON
ON
OFF
1. If a host is not configured for port authentication using CHAP, the host cannot connect to the disk array.
2. ---: This item does not affect the connection results, or cannot be specified.
3. If a host uses Microsoft iSCSI Initiator and is configured for port authentication using CHAP, host authentication will fail. To allow
such a host to connect to the port without authentication, do not configure it for CHAP port authentication.
For additional information on user authentication, see
page 24.

Operational restrictions

The success of some LUN Manager activities depends on the status of the security switch and whether I/O
is active or inactive to the port or LUN. The following tables describe those restrictions.
NOTE:
• If you attempt to apply a large number of the settings in the LUN Manager panels in a single session,
the XP128/XP1024 might be unable to continue processing. It is recommended that you apply no
more than 1,000 settings per session. Note that a large number of settings are likely to be applied
when you define alternate paths (see
commands are required to define alternate paths.
• Do not remove LU paths (see
performing I/O processing.
• Do not remove LUN security (see
are performing I/O processing.
Restrictions on LUN Manager operations
Table 15 LUN Manager operation restrictions
Activity
Setting the LUN
Security Switch
ON
54 LUN Manager for the XP128/XP1024
User information Enable
registered on host? authentication
Yes Selected
Yes Not selected
No —
— —
"Defining alternate
"Changing or viewing LU path
"Applying and removing LUN
Security switch OFF
Host group 0
With active I/O Permitted with
on port confirmation
message
With no active
I/O on port
Connection results
Connected if the host authentication was
successful (processing will continue to port
authentication)
Connected without host authentication
2
Authentication failed to be authenticated and
cannot be connected
Connected without host authenticati
"User authentication (iSCSI environments
paths" on page 40), even though only two
settings" on page 36) when the hosts are
security" on page 43) when the hosts
Host group
01-7F
Invalid operation
1
3
on
Security switch ON
Host group 0 Host group
01-7F
Invalid operation
only)" on