H3C UniServer B5700 G5, Руководство пользователя

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11
Figure 8 System maintenance switch
The following problems can be solved with the system maintenance switch. Table 8 describes
meanings of the system maintenance switch and " System board layout " shows the layout.
•
Users forget the HDM login user name or password and cannot log in to HDM.
•
Users forget the BIOS password and cannot enter BIOS.
•
Default BIOS settings should be restored.
Table 8 System maintenance switch description
Position
Description
(default value: Off)
Remarks
1

Off —HDM login requires the
username and password of a valid
HDM user account.

On —HDM login requires the
default username and password.
When pin 1 is On, users can permanently log in to HDM
with the default username and default password. It is
recommended that change pin 1 to Off after completing
the operation.
5

Off
—Normal server startup.

On —Restores the default BIOS
settings.
When the server is powered off, change pin 5 to On, then
to Off again, and finally start the server. The default
BIOS settings will be restored.
CAUTION:
When pin 5 is changed to On, the server cannot be
started. Therefore, stop the running service in advance
and make sure the server is powered off. Otherwise it
may cause business data loss.
6

Off —Normal server startup.

On —Clears all passwords from
the BIOS at server startup.
When pin 6 is On, all passwords will be cleared from the
BIOS every time the servers is started. As a best
practice, change pin 6 to Off after setting the BIOS
password.
2, 3, 4, 7, 8
•
Reserved
None