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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Some Dataguard is good, lots more must be better?(specifically, when do most actual failovers really occur?)

RE: Some Dataguard is good, lots more must be better?(specifically, when do most actual failovers really occur?)

From: Kevin Closson <kevinc_at_polyserve.com>
Date: Wed, 20 Sep 2006 13:50:21 -0700
Message-ID: <5D2570CAFC98974F9B6A759D1C74BAD0E5B0E8@ex2.ms.polyserve.com>

 

        My best site ever was an airport, where they use to do a switchover on a regular basis. Every last Sunday of the month they switched between the Tower DC and the Terminal DC. 3-4 times a year they found out that some interface had a flaw. Imagine what would have happened if the first failover was performed after 2 or 3 years and would result in 6-12 flawing interfaces. BTW, Kevin, storage replication wouldn't have prevented this in all cases. It was due to missing links of new interfaces (the cabling was simply not there) and alike as well as flawing change procedures ( a file was altered in just one site ISO 2).

...so there the only cabling this standby had was the one DG was sending redo over? Weird.

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Received on Wed Sep 20 2006 - 15:50:21 CDT

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