XtremIO and Exadata

Hi Vishal,

Oracle Exadata storage (with High Performance or High capacity SAS Disks) and XtremIO (All -Flash Array) storage are built on different technologies/architectures and hence not many similarities are there. There are many unique features  of Exadata and  XtremIO. You may check in the embedded link (mentioned before). The only similarity I can think of is the compression algorithm. Oracle has HCC (hybrid columnar compression) within Exadata while XtremIO has New inline, always-on data compression – up to 4X more usable capacity in database environments. Oracle Exadata can achieve a compression rate of 3X (though they claim 8X) . Also, HCC does not work with all data objects and it takes time to decompress in RAM for queries thereby degrading DB performance. But in XtremIO the compression is inline (real-time on XtremIO CPUs not the database host) within the storage array and hence there is no performance penalty. You may click here to understand the real story on Exadata HCC.

To understand the drawbacks of Exadata vis-à-vis EMC products , you may read my blog here. Also, XtremIO array always maintains consistent latency, which enables Oracle chores to be used optimally and hence XtremIO reduces Oracle Licensing costs as the usage of the number of chores get reduced drastically.

For more great features of XtremIO , you may click here and download the EMC XtremIO brochure.

Regards,

Indranil