Oracle Flash Accelerator F640 PCIe Card v1 population rules for Oracle Server X7-2L:
If Oracle F640 Flash Card quantity is less than three, then Oracle F640 Flash Card installation order is: NVMe0, NVMe1, NVMe2, NVMe3 NVMe4, NVMe5, NVMe6, NVMe7, NVMe8, NVMe9, NVMe10, NVMe11
If Oracle F640 Flash Card quantity is four, then Oracle F640 Flash Card installation order is: NVMe4, NVMe5, NVMe6, NVMe10
If Oracle F640 Flash Card quantity is more than four, then Oracle F640 Flash Card installation order is: NVMe0, NVMe1, NVMe2, NVMe3 NVMe4, NVMe5, NVMe6, NVMe7, NVMe8, NVMe9, NVMe10, NVMe11
Note the following restrictions for installing more than four Oracle F640 Flash Cards:
Do not install Oracle Storage 12 Gb SAS PCIe RAID HBA, Internal: 16 port card.
Do not install HBA-connected storage drives in the server front bays.
Refer to the server documentation for more information at https://www.oracle.com/goto/x7-2l/docs.