NetWorker command: nsrmmdbd
NAME
nsrmmdbd - NetWorker media (volume) management database daemon
SYNOPSIS
nsrmmdbd
DESCRIPTION
The nsrmmdbd daemon provides an RPC-based database service to the local
nsrd(8) and nsrmmd(8) daemons, and query-only network access to Net-
Worker clients. The RPC program number provided by nsrmmdbd is 390107.
The RPC version numbers provided by nsrmmdbd are 3, 4, and 5. Nsrmmdbd
is normally started by nsrd(8).
The daemon manages a ``volume, save set and client id database''
located in the directory /nsr/mm/mmvolume6. The primary purpose of the
database is to remember which save sets reside on which backup volumes.
The database also provides the client name mapping to the internally
used client identifier. Numerous access methods are provided to save
set, volume and client id map records within the database.
FILES
/nsr/mm/mmvolume6
Directory containing the media database.
/nsr/mm/cmprssd
For performance and space reasons, the database is periodi-
cally rebuilt (or compressed). This file is created each
time the database is compressed; its associated ctime is
used to determine the next time that the database will be
compressed. The database compression can be invoked by
removing this file and running nsrim. This is not recom-
mended while the NetWorker server is actively saving or
recovering data.
/nsr/mm/mmvol<n>
This temporary file is created to hold the media database
information that will be saved to a volume by nsrmmd-
basm(8). A unique file name is generated by utilizing <n>,
a 6 digit hex number appended as part of the file name.
/nsr/mm/mmvolume6.r
The file (created by nsrmmdbasm) that is read when the
media database information is being recovered.
/nsr/mm/volume.tmp
A temporary directory created when recovering or compress-
ing the media database.
/nsr/mm/nsrim.prv
An empty file is used to track the last time that the pro-
gram nsrim was started to perform maintenance on the Net-
Worker databases.
/nsr/logs/daemon.raw
The file to which Networker daemons writes the log mes-
sages.
SEE ALSO
mmrecov(8), nsr(8), nsrd(8), nsrim(8), nsrmmd(8), nsrmmdbasm(8),
nsrmm(8), nsr_render_log(8), mminfo(8)
DIAGNOSTICS
The nsrmmdbd diagnostic messages will normally be logged to the
/nsr/logs/daemon.log file.
Besides the messages listed below, nsrmmdbd may generate other diagnos-
tics. Any diagnostics other than those listed below indicate a serious
problem with the media database. It may be necessary to recover your
media database using mmrecov(8) if that occurs.
media db is converting, this may take a while
Any media databases created prior to the NetWorker 7.? (Key-
Stone) release have to be converted (once) to the new database
format. The database is converted to current version.
media database conversion completed successfully
Printed when the conversion is completed successfully.
media conversion failed! reason
Printed when the conversion is terminates unsuccessfully. A
more detailed reason may be appended to the message. NetWorker
cannot work until the media database is converted successfully.
media db is saving its data, this may take a while
Printed when the daemon is dumping its records to a temporary
file when the database is being backed up. The service is
unavailable while the database is dumping.
media db is recovering, this may take a while
Printed when the daemon is reloading its database. The service
is unavailable while the data is being reloaded.
media db is checking btrees
Printed each time the daemon is restarted. Upon start-up, the
daemon performs sanity checks on the database search indexes.
media db is consistency checking the database
Printed each time the daemon is restarted. Upon start-up, after
the database search indexes are checked, the database is checked
for incomplete records.
media db is open for business
Printed after any of the previous messages are printed to indi-
cate that the service is once again available.
A copy of this process is already running!
Another copy of nsrmmdbd(8) is currently running and has exclu-
sive access to the media database. Only one nsrmmdbd process
should be running on a given machine at a time. This can happen
if the previous nsrmmdbd was not properly killed off. Use
nsr_shutdown(8) or ps(1) and kill(1) to identify and kill off
all the NetWorker daemons before restarting nsrd(8) again.
Cannot open lock file
An internal error, check the permissions on the /nsr/tmp and
/nsr/mm directories.
NetWorker 7.5.1 Mar 21, 09