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Oracle

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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Managing REDO log performance

Bart Sjerps 2012-05-20 Oracle, Performance 14 Comments

I have written before about managing database performance issues, and the topic is hot and alive as ever. Even with today’s fast processors, huge memory sizes and enormous bandwidth to storage and networks. warning: Rated TG (Technical Guidance required) for…

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Oracle RAC on VPLEX now certified

Bart Sjerps 2012-05-20 Innovation, Oracle, VPLEX 1 Comment

Last week EMC announced that Oracle RAC on VPLEX stretched clusters is now officially supported and certified by Oracle! News Summary:   Oracle has certified that EMC® VPLEX™ METRO in a stretch cluster configuration can provide Oracle Real Application Clusters…

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Data Guard protecting from EMC block corruptions?

Bart Sjerps 2012-04-16 Oracle 20 Comments

Today I was giving a training to fellow EMC colleagues on some Oracle fundamentals. One of the things that was mentioned is something I have heard several times before: Oracle is claiming that EMC SRDF (a data mirroring function from…

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