VLDB_CONVERT(8) AFS Command Reference VLDB_CONVERT(8)NAMEvldb_convert - Convert the VLDB to/from Transarc AFS versions 3.1-3.4a
SYNOPSISvldb_convert [initcmd] [-to] <AFS version goal>
[-from] <current AFS version>
[-path] <path to VLDB file> [-showversion]
[-dumpvldb] [-help]
DESCRIPTION
The vldb_convert command is used to convert legacy Transarc 3.1-3.4
VLDB database files between versions. This command is not needed when
using OpenAFS except in the case of preparing to migrate a pre-3.4
version of Transarc AFS to OpenAFS.
In order to convert the VLDB file, do the following:
1. Shutdown the vlserver process on all server machines. vlserver is
typically run only on the Cell servers, which must be listed in
CellServDB or DNS.
2. Backup the VLDB file /usr/afs/db/vldb.DB0 on the sync site to a
safe place. Typically, the sync site if the machine with the lowest
IP address.
3. Remove the /usr/afs/db/vldb.DBSYS1 file from all cell server
machines.
4. Remove the /usr/afs/db/vldb.DB0 file from the non-sync site server
machines.
5. Run the vldb_convert command on the VLDB file using the following
command:
# vldb_convert-path /usr/afs/db/vldb.DB0
6. Copy the new version of the vlserver binaries to all Cell servers.
7. Restart the vlserver process on all Cell servers. The new VLDB will
be distributed to all of the Cell servers.
8. Confirm that all Cell servers are synchronized and that the vldb
looks in good shape.
CAUTIONS
Backup the VLDB file to a different directory or machine before
performing the upgrade. Be sure that all vlserver processes are always
running the same version. This requires downtime, but for this
conversion, all vlserver instances must be at the same version. This
restriction is relaxed in OpenAFS.
OPTIONS
[initcmd]
This is an optional string that does nothing.
[-to] <AFS version goal>
This option is required when downgrading or when upgrading to a
version less than 3.4. Specify 1, 2, 3, or 4 to choose version
3.1, 3.2, 3.3, or 3,4 respectively. This defaults to version 3.4.
[-from] <current AFS version>
This option is required when downgrading. Specify 1, 2, 3, or 4 to
choose version 3.1, 3.2, 3.3, or 3.4 respectively.
[-path] <path to VLDB file>
Specifies the path the VLDB file. This defaults to
/usr/afs/db/vldb.DB0 and only needs to be used if the VLDB file is
not in the default path..
-showversion
Shows the current version of the VLDB. This option can only be used
by itself.
-dumpvldb
Produces verbose debugging output during the conversion process.
-help
Prints the online help for this command. All other valid options
are ignored.
PRIVILEGE REQUIRED
The issuer must have read and write access to the file
/usr/afs/db/vldb.DB0. This usually means that root access is required
on the cell server machines.
SEE ALSOvlserver(8)COPYRIGHT
Copyright 2008 Jason Edgecombe <jason@rampaginggeek.com>
This documentation is covered by the BSD License as written in the
doc/LICENSE file. This man page was written by Jason Edgecombe for
OpenAFS.
OpenAFS 2013-10-09 VLDB_CONVERT(8)