After upgrading some Redhat machines to 1GB of ram it became nearly
impossible to dump any filesystem without dump going crazy trying
to read nonexistant blocks (previously it had worked fine). Upgrading
the version of the linux dump program which we use helped significantly
and now we can back up the machines with amanda again.
Do you check your backups, or does Amanda do it for you? I think dump
is on the way out in Linux.