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Archives of the TeradataForum
Message Posted: Tue, 10 Feb 2004 @ 14:30:05 GMT
Subj: | | Re: Restoring cluster dump to a different configuration |
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From: | | Fred W Pluebell |
RESTORE only works on a different system if you have restored database DBC (e.g. in a disaster recovery or system migration scenario) so the
internal object IDs match. Otherwise you must use COPY. And you must restore or copy the dictionary entries separately, before the first set of
cluster data.
Using CLUSTER dump trades off a shorter "backup window" against a more complicated recovery. In normal operations, one tends to ARCHIVE or DUMP
many times and seldom, if ever, RESTORE or COPY - so cluster dump is a clear winner for large tables or databases if you have sufficient resources
(e.g. multiple backup devices).
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