Bug ID 18678666
Issue: If using NVMe hardware, Oracle Linux with Unbreakable Enterprise Kernel (UEK) Release 3 users are required to run Update 3 or a subsequent version of the kernel, as earlier versions might cause problems. Many improvements and fixes have been added to Update 3 of UEK Release 3 that are necessary for NVMe hardware support.
Affected software: Oracle Linux 6.5, 7.0, and 7.1 with the Oracle Unbreakable Enterprise Kernel Release 3
Workaround: If your server is configured with NVMe hardware and you use Oracle Linux 6.5, 7.0, or 7.1 with UEK 3, the minimum required version of the kernel is UEK R3u3. For more information, refer to Post Installation Tasks for Oracle Linux 6.5, 6.6, or 7 OS in Oracle Server X5-2L Installation Guide for Linux Operating Systems.