Russ Allbery <[EMAIL PROTECTED]> wrote: > Timothy G Flynn <[EMAIL PROTECTED]> writes: > >> Are you using TSM as a backend for the AFS backup system or >> are you using the normal TSM client to backup filesystems under /afs >> ? > > Using the normal TSM client.
I assume he means the normal one with afs support, i.e. dsmafs or dsmcafs. These exist in the TSM 5.1 packages and seem to only want to install on AIX 4.3.3 or 5.1. I assume that the binaries can be copied to newer AIX versions as needed, as mentioned on this list. >> Since you mention per-file backups I assumed you were doing the >> later. But if that is the case why do you need any special support >> from TSM ? Wouldn't /afs look like any other filesystem to the TSM >> client (assuming the client process is running with an AFS token) ? > > Saving AFS ACLs and mount points is a requirement for us. The TSM (AFS) client is also smart enough to NOT traverse mount points if you do not want it to. For instance, I have a single directory /afs/acm.uiuc.edu/common/listvol that contains a list of all the volumes that I actually want to backup. I have a script that parses this and re-writes the tsm config files to include volumes automagically based on various criteria: /afs/acm.uiuc.edu/admin/scripts/tsm.* I supose you might be able to do something similar with excludes and such, but its pretty hard to stop users from mounting volumes where ever they want. If you just point a backup client at /afs you can have multiple files backed up twice (or more) as most backup programs will not know about mount points and treat this as a directory. You might also have loops as the programs traverse recursive mount points forever. You can also have the client start to traverse volumes in foreign cells, and this can be very slow and cause serious delays in the backup. ----- We have not had many problems with TSM and AFS, other than the slow J40 that runs our backups and of course waiting for tapes to load during a restore. There were initial problems of obtaining working AIX 5.1 binaries, but someone of this list had some working ones (and will hopefully provide 1.4 binaries as well once it is released.) I did have some problems when trying to backup .gconfd directories for certain users. TSM would dump core and terminate the running backup job. I have since simply excluded those files, but its something to watch out for. <<CDC _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
