How to achieve zero down time

Posted by Hiral Lakdavala on Server Fault See other posts from Server Fault or by Hiral Lakdavala
Published on 2010-12-13T19:28:07Z Indexed on 2011/11/22 1:55 UTC
Read the original article Hit count: 587

Filed under:

database

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Oracle

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nosql

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cassandra

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hbase

For an application we want to achieve zero database and application down time using Active Active configuration. Our dB is Oracle

Following are my questions:

How can we achieve active active configuration in Oracle?
Will introducing Cassandra/HBase(or any other No SQL dbs) cloud help in zero downtime or it is only for fast retrieval of data in a large db?
Any other options?

Thanks and Regards, Hiral

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