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Message Posted: Mon, 06 Jan 2003 @ 19:33:50 GMT


     
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Subj:   Re: Incremental Benefit of Fallback
 
From:   Anomy Anom

<-- Anonymously Posted: Monday, January 06, 2003 14:02 -->

Fallback will help when you lose two drive in the same disk array rank. It may help if you lose power and disk array cabinet powers off. Much depends on how the vamp clustering is done.

Fallback protects you in the event of software/hardwere failures that results in data corruption which will cause you to have FATAL vprocs. Teradata is good, but it is not perfect and you will lose data from time to time so be prepared with good backups and have fallback on the mission critical tables. Hardware failure can/does cause data corruption. You never know when a disk array controller will fail and it could stomp on the data.



     
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