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na_ndmpd - manages NDMP service
ndmpd [ on | off | status | probe [ session ] | kill [
session ] | killall | password [ username ] | debug [
level | stack | screen | file ] | version [ maxversion ] ]
The ndmpd command controls and displays information about
the daemon responsible for providing Network Data Management
Protocol service.
One of the following options must be specified:
- on
- Enables NDMP request-handling by
the daemon. Enabling/disabling
NDMP persists across reboots.
- off
- Disables NDMP request-handling
by the daemon. Processing continues
for requests that are
already in progress. New
requests are rejected. By
default, NDMP service is disabled
at system startup.
- status
- Displays the current state of
NDMP service.
- probe [ session ]
- Displays diagnostic information
about the specified session. If
session is not specified, information
about all sessions is
displayed.
- kill session
- Signals the specified session to
stop processing its current
requests and move to an inactive
state. This allows hung sessions
to be cleared without the
need for a reboot, since the off
command waits until all sessions
are inactive before turning off
the NDMP service.
- killall
- Signals all active sessions to
stop processing their current
requests and move to an inactive
state.
- password [ username ]
- Displays an NDMP specific password
for any existing Data ONTAP
non-root user account. Starting
with Data ONTAP 6.4, NDMP allows
the non-root user login to NDMP
server and perform the NDMP
backup and NDMPCOPY operations.
At NDMP login, the server
authenticates the user name and
the corresponding NDMP specific
password to grant access to the
user. However, the root login
authentication process remains
the same. There is no NDMP specific
password for root. Based
on the way we create the NDMP
specific password that any
change to a Data ONTAP administrative
user password will
invalidate the associated NDMP
specific password.
- debug [ level ]
- The debug log provides a
detailed description of the
activities of all active NDMP
sessions. The amount of information
displayed by the debug
log is determined by the debug
level specified by the user. Use
0 for the level to turn the
debug log off. Use a nonzero
value for the level to turn the
debug log on. The levels supported
are: 10(displays connections
being made and connections
being closed); 20(displays basic
information regarding the actual
NDMP messages such as the message
types, sequence numbers,
and timestamps); 30(same as
level 20 plus display of message
header information and detailed
information about most messages);
50(same as level 30,
plus display of environment
variables and any exceptions
issued by the server); 70(same
as level 50, plus display of
tape and SCSI command descriptor
blocks(CDBs) sent). If a level
is not specified, the current
debug level and the state of the
stack, screen, and file variables
are displayed.
- debug stack
- The stack keyword toggles the
inclusion of stack trace information
in the debug log when
exceptions are encountered in
the NDMP Server code of Data
Ontap. This option is off by
default. It is typically used
only for advanced debugging.
- debug screen
- The screen keyword toggles the
enablement of the display of the
debug log information on the
filer console. This option is
on by default.
- debug file
- The file keyword toggles the
enablement of writing the debug
log information to the log
files. This option is on by
default.
- version [ maxversion ]
- Displays the maximum version
that NDMP currently supports
when invoked without the
optional maxversion. Sets the
maximum version that NDMP allows
when maxversion is specified.
Currently supported values of
maxversion are 2,3, and 4. By
default, the maximum version is
set to 4 at system startup. If
maxversion is changed with ndmpd
version maxversion, the changed
value persists across reboots.
/etc/rc
system initialization command script
/etc/log/ndmpdlog.yyyymmdd
daily ndmpd log files
na_rc(5), na_ndmpdlog(5).
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