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- Chapter 30. Upgrade Issues
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-
-Chapter 30. Upgrade Issues
-
-
-Stefan G. Weichinger
-
-XML-conversion
-AMANDA Core Team
-<sgw@amanda.org>
-Amanda 2.4.0 has introduced a major incompatibility in the Amanda protocol.
-This means that pre-2.4.0 clients won't interoperate with a 2.4.0 server, nor
-will 2.4.0 clients interoperate with pre-2.4.0 servers. You have to upgrade
-them all at the same time.
-To ease the upgrade process Amanda has, from release 2.4.0 on, a configure flag
-(--with-testing) that will cause Amanda to use alternate service names (Amanda-
-test) instead of the standard ones. This allows you to keep using your old
-version of Amanda while you test the new one.
-Depending upon the version of Amanda you are upgrading from, Amanda may use a
-different database library to store the backup information, and the new Amanda
-may not be able to read the old Amanda database files. In this case, you will
-want to do something like the following:
-Before the upgrade (using the old version of amadmin):
-
- # cd /var/AMANDA/CONFIG
- # amadmin CONFIG export > zzz
- # mkdir backup
- # mv curinfo* backup
-
-
-and after the upgrade (using the new version of amadmin):
-
- # cd /var/AMANDA/CONFIG
- # amadmin CONFIG import < zzz
-
-
-and a month :-) after you are happy with the new version:
-
- # cd /var/AMANDA/CONFIG
- # rm -rf backup
-
-
-After 2.4.0, the structure of the directory holding the index files was changed
-to have three levels instead of being flat. This greatly reduces the number of
-files in a given directory, which was a problem for some systems.
-The new layout is:
-[indexdir]/hostname/filesystem/YYYYMMDD_L.gz
-where hostname and filesystem are "sanitized" versions of the names from
-disklist, i.e. '/' characters are converted to '_' and so on. This new naming
-convention matches the one used for the text formatted database.
-A script is available to convert the flat directory structure to the new
-layout:
-http://www.amanda.org/2.4-conv/msg00428.html
-
-Note
-
-Refer to http://www.amanda.org/docs/upgrade.html for the current version of
-this document.
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