Datasheet

US 7,099,934 B1
11
usemame, a user has up to 60 seconds to enter a password
string. If data is not entered with in the time limit, the session
is ended with the following message: “Sorry the time is up.
Try again later!”.
The power manager allows up to 128 usernames to be
de?ned. The system has three built username/password
pairs. The power manager supports a two-level username/
password scheme. There is one system-administrative level
usemame (ADMN), and up to 128 general-user level user
names.
A user logged in with the administrative usemame
(ADMN) can control power and make con?guration
changes. A user logged in with a general usemame can
control power. Also, while a user logged in with the admin
istrative usemame can control power to all IPMs, a user
logged in with a general username may be restricted to
controlling power to a speci?c IPM or set of IPMs, as
con?gured by the administrator.
There are three built in usernames and passwords:
Password: admn
Password: genl
Password: gen2
Usernalne: admn
Usernalne: genl
Usernalne: gen2
These usernames cannot be deleted and by default all
three have access to all IPMs. The “admn” usemame is the
administrative username. These default usernames are able
to view the status of all ports in the power manager chain
even if they do not have access to the IPMs for turning
power on and off. Newly added usernames can view the
status of ports to which they have power on and off access.
This means that a user logged in with any of the three default
usernames can determine the number ports in a power
manager by issuing the STATUS command (described later
in this manual) because the status of all ports will be
reported. A user logged in with a non-default usemame will
be able to view the status of ports to which a usemame has
power on and off access.
When logging in for the ?rst time, the system adminis
trator should use the default administrative username. This
will allow the system administrator to con?gure all the
options, as well as to change the default passwords. Chang
ing the passwords is done using the “SET PASSWORD”
command from the command prompt. The command as well
as the other administrative commands are described in the
next section.
The command prompt interface is used for both power
control and con?guration of some options, including adding/
deleting usernames, changing passwords and changing the
modem initialiZation data rate. From the command prompt,
power control actions can be applied to individual IPMS or
to a group of IPMs.
All con?guration changes made at the command prompt
are saved to non-volatile RAM and are effective immedi
ately.
Once a valid usemame and password has been entered,
the power manager Commander displays a command
prompt, “power manager: _”.
To get a display of available commands, press enter at the
power manager prompt, which will show power manager
commands are “CONNECT LOGIN OFF ON QUIT
REBOOT RESYNC SET ADD DEL LIST SHOW STATUS
VERS”.
The RESYNC, SET, ADD, DEL, and LIST commands
will be available when logged in with the administrative
20
25
30
35
40
45
50
55
60
65
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level password. In addition the SHOW command will be
available if the administrator grants SHOW privileges to a
usemame. By default the gen1 and gen2 usernames have
SHOW privileges. New usernames do not have SHOW
privileges unless speci?cally granted by the administrator
via the SET SHOW command described later in this manual.
The port name and group parameters in the OFF, ON,
REBOOT, and STATUS commands are user-de?ned names
from the Power Control Screens. Multiple IPMs or groups
can be speci?ed, each separated by a space, up to 50
characters. In addition port names may be speci?ed as
absolute port names. Preceding the port name with a period
speci?es an absolute port name (“.”). Appending the power
manager Board letter (e.g., “A” for the ?rst board, “B” for
the second board, etc. with the port number on the speci?c
board creates the absolute port names. For example, the third
port on the third power manager Board in the chain of boards
would have an absolute port name of “.C3”. If the chain of
power manager Boards is altered for any reason, the absolute
port names change. For example, if the second board in the
chain is removed (perhaps it fails), and what used to be the
third board is now connected to the ?rst board (it is now the
second board in the chain), then the absolute port names on
the new board change from “C1, C2, C3, C4 to B1, B2, B3,
B4”. An absolute port name always refers to a single port on
a single board.
“OFF {Port NamelGrouplALL} [{Port Name|Group}*]”
turns off an individual IPM, a prede?ned group of IPMS, or
all IPMs for which access is allowed by the current password
level. For example in, “OFF Device” the OFF command
returns information, “n port(s) turned off, In port(s) locked”.
“n” indicates the number of referenced IPMS that turned off.
“m” indicates the number of referenced IPMS that are
locked in their current state either by the administrator or
because the current username does not have access rights to
that IPM. “(n+m)” is the total number of IPMs that were
referenced by the parameters.
“ON {Port NamelGrouplALL} [{Port Name|Group}*]”
turns on an individual IPM, a prede?ned group of IPMs, or
all IPMs for which access is allowed by the current password
level. For example in, “ON Device”, the ON command
returns information, “n port(s) turned on m port(s) locked”.
“n” indicates the number of referenced IPMs that turned on.
“m” indicates the number of referenced IPMs that are locked
in their current state either by the administrator or because
the current usemame does not have access rights to that
IPM. “(n+m)” is the total number of IPMs that were refer
enced by the parameters.
“REBOOT {Port NamelGrouplALL} [{Port
Name|Group}*]” turns off, pauses, and turns back on, an
individual IPM, a prede?ned group of IPMS, or all IPMs for
which access is allowed by the current password level. The
delay before turning back on is either 15 seconds, or the
Minimum-Off Time from the Power Control Screen, which
ever is greater. For example in, “REBOOT Device”, the
REBOOT command returns information, n port(s) rebooted,
m port(s) locked. “n” indicates the number of referenced
IPMS that were rebooted. “m” indicates the number of
referenced IPMs that are locked in their current state either
by the administrator or because the current username does
not have access rights to that IPM. “(n+m)” is the total
number of IPMs that were referenced by the parameters.
“STATUS {Port NamelGrouplALL} [{Port
Name|Group}*]” returns the status of an individual IPM, a
prede?ned group of IPMs, or all IPMS. For the three default
usernames (e.g., admn, gen1, and gen2), this command can
report the status for an IPM for which power control access