Tag: Oracle Exadata

This blog post mentions some of very important components of Exadata Storage Server, which are physical disks, cell disks, grid disks and ASM disks and their correspondence.

I just got an Exadata Customer Advisory e-mail from Oracle, identifying “an important issue that needs your immediate attention” and pointing to MOS note 1265396.1. The only fix is to upgrade to the newly-released version 11.2.2.1.1 of the storage server software.

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I was searching oracle.com for some Exadata-related wait events, and noticed some hits popping up from formerly closely-held Exadata documentation. Upon closer look, I found the full Exadata V1 user’s guide. I hope the V2 documentation will be posted soon.

For those of you who weren’t able to attend my webinar last week “Implementing Exadata: the results are in, recordings are now available here online.

One of the key features of Exadata V2 is the flash cache. Although commonly thought of as an OLTP-specific feature, it has also been marketed as a data warehouse accelerator. According to this frequently-used presentation slide, a full Exadata rack provides 21 GB/sec of disk throughput and 50GB/sec of flash throughput. was testing throughput using a simple query, making use of both smart scans and parallel execution. Here’s what the objects look like. They’re running on a quarter rack system with a stated capacity of 4.5GB/sec disk and 11GB/sec flash.

Following up on my earlier webinar Implementing Oracle Exadata – Strategies for Success, I’ll be giving another webinar to present the results of the Exadata implementation at LinKShare. I’ll be talking about actual performance results, our zero-downtime go-live, compression experiences, and performance tuning in an Exadata environment.

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Congratulations to Chris Marlowe of Oppenheimer Funds and Bill Mitchell of Alliant Energy, attendees to my Exadata session yesterday. Both are lucky winners of the a flight with the inimitable Sean D Tucker and the Oracle Challenger. For those of you who missed the session, keep your eyes on this blog for a recording, coming soon.

This post has bee updated live from the Oracle OpenWorld as I’m learning what’s new. Last update done on 28-Sep-2010. X2-2 and X2-8 configurations have evolved over time so if you are reading this post now — beware of its age. The referenced data-sheets seems to be up to date though.