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fragmentation

Oracle snapshots and clones with ZFS

Bart Sjerps 2012-08-29 FAQ, Oracle, Performance 6 Comments

Another Frequently Asked Question: Is there any disadvantage for a customer in using Oracle/SUN ZFS appliances to create database/application snapshots in comparison with EMC’s cloning/snapshot offerings? Oracle marketing is pushing materials where they promote the ZFS storage appliance as the…

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Exadata Hybrid Columnar Compression (HCC) for (storage) dummies

Bart Sjerps 2012-08-03 Oracle 12 Comments

Although EMC and Oracle have been long-time partners, the Exadata Database Machine is the exception to the rule and competes with EMC products directly. So I find myself more and more in situations where EMC offerings are compared directly with…

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Why use Oracle ASM for Oracle databases

Bart Sjerps 2011-05-25 Oracle 17 Comments

I’ve been in discussions with some customers recently about what is the best way to store Oracle database data. Needless to say that the foundation should be EMC infrastructure of course, but apart from that, what kind of volume manager…

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