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Cluster backup
2006-05-31 06:45:07
We are constantly encountering strange
errors whith DLEs that refer to cluster virtual addresses.
virtualA /apps/a lev 0 FAILED [data timeout]
virtualB /apps/b RESULTS MISSING
The disklist contains:
node1 /etc
full # Physical node 1
node2 /etc
full # Physical node 2
virtualA /apps/a full
# virtual address A
virtualB /apps/b full
# virtual address B
Error messages are not predictable and
may change every day. They completely disappear if - in the disklist file
- we replace the virtual address with the node's physical address which
is running the service (and is currently mounting the shared partition
we need to backup). Obviously, services and partitions might be relocated
to another cluster node, so this approach won't work.
I guess this happens because amanda
server treats "node1", "virtualA" and "virtualB"
like three distinct hosts, whereas in some situations thay may refer to
a single physical host, with a single amanda client instance responding.
Can someone suggest how to solve this
issues and how to configure Amanda to backup a cluster environment?
Thanks in advance,
Regards,
Nicola
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