| Title: | DECmcc user notes file. Does not replace IPMT. |
| Notice: | Use IPMT for problems. Newsletter location in note 6187 |
| Moderator: | TAEC::BEROUD |
| Created: | Mon Aug 21 1989 |
| Last Modified: | Wed Jun 04 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6497 |
| Total number of notes: | 27359 |
Hello,
I have 2 questions from my customer about local repository files.
They have TeMIP installed at a site (DECmcc Ultrix/ssb),
to test the connection to the real Equipements.
They do not want to loose their configuration in case of a crash
with subsequent corruptions. They want to be able to restore the network
data from the configuration known, at least, the day before.
They ask how they should handle the recovery.
1) The V1.2.0 BMS release notes have a chapter about Repository files.
<< 3.9.2 Copying DECmcc Instance Repository Files
The ULTRIX MCC dictionary files mcc_fdictionary.dat and
mcc_fdictionary.dat.dir are based on the ndbm data base library
which maintain data in a key/content pairs data base...............
>>
This section only speaks only about the dictionnary files.
What about the real Local MIR Files, and especially
mcc_dns_att.dir
mcc_dns_att.pag
mcc_dns_ent.dir
mcc_dns_ent.pag ?
Can I use the mcc_ndbm utility for those and how ?
2) What if I store those files on a tape ?
How could I do that, and how to re-use the files ?
Thanks to answer
Florence
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 3629.1 | mcc_ndbm works w/ MIR files | MOLAR::BLACK | Wed Aug 26 1992 21:33 | 3 | |
Although the mcc_ndbm utility is primarily for use with the dictionary,
it will work on MIR files as well. The syntax is the same as for
dictionary files.
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| 3629.2 | to tape, from tape | MOLAR::BLACK | Wed Aug 26 1992 21:37 | 5 | |
To store on tape: unload the files using mcc_ndbm then copy the
variable-length record files to tape.
To restore from tape: copy the variable-length record files to
disk and then load them using mcc_ndbm.
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| 3629.3 | Cannot use mcc_ndbm on mcc_dns_ent.pag file | TAEC::WEBER | Fri Aug 28 1992 09:42 | 25 | |
Sorry but I cannot make it work. May be I am wrong somewhere, but
several trials gave the following (being or not being an SU)
I also tried on a private MIR file and the same error appeared.
Script started on Fri Aug 28 14:33:36 1992
#cd /var/mcc
# mcc_ndbm -u mcc_dns_ent.pag mcc_dns_ent.cmp
Creating variable length record file, mcc_dns_ent.cmp
based on ndbm file, mcc_dns_ent.pag
Unable to open mcc_dns_ent.pag
Encountered error while creating mcc_dns_ent.cmp
#
script done on Fri Aug 28 14:33:55 1992
The real question behind all this is to be able to backup the system
regularly, and retreive the data if required. Because it is said that
cp or tar commands cannot be used, I thought this one would work.
Any idea ?
Thanks to answer
Florence
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| 3629.4 | Command incorrect | MOLAR::BLACK | Fri Aug 28 1992 10:32 | 36 | |
Florence,
The command you typed is incorrect--for ndbm files the extension is
explicit. Note that the mcc_ndbm command is documented in the Toolkit
Reference. Also, if you type mcc_ndbm you will get some help text.
Regards,
Darryl
I just tried the following--it worked fine.
hamma.mcc.dec.com> cd /var/mcc
/var/mcc>mcc_ndbm -u mcc_dns_ent /usr/users/black/mcc_dns_ent.cmp
Creating variable length record file, /usr/users/black/mcc_dns_ent.cmp
based on ndbm file, mcc_dns_ent
Finished creating /usr/users/black/mcc_dns_ent.cmp
/var/mcc>
/var/mcc>mcc_ndbm
mcc_ndbm V1.2 MRU: 04/10/92
mcc_ndbm is a simple utility that unloads (-u) and
loads (-l) sparsely populated databases (ndbm files).
mcc_ndbm requires three arguments:
mcc_ndbm -[u,l] <source> <destination>
mcc_ndbm -u ndbmfile outfile
mcc_ndbm -l infile ndbmfile
In and out files are variable length record files.
Variable length record files may have any extension.
***By default .dir/.pag are appended to all ndbm
file specifications.***
If a .dat extension is present on a ndbm file,
.dat/.dat.dir files are expected/created.
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