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From eWeek]
Oracle is fast losing its patience with both XenSource and VMware over their reluctance to work together to develop a single interface that will integrate a variety of virtualization solutions in the Linux kernel.
Oracle is a significant player in the open-source community and, as both an open-source and commercial database provider, has a strong interest in getting virtualization technology into the kernel. It recently managed to get the Oracle Cluster File System technology, an open-standard file system, adopted as part of the Linux 2.6 kernel, the first such technology to be included in the kernel.
The article continues at
http://www.eweek.com/article2/0,1759,1999226,00.asp?kc=EWRSS03119TX1K0000594