HP IO Accelerator Driver and Management Software Version 2.2.1 Release Notes

Errata 18
IO Accelerator Management Tool in Linux enables preallocate (for
swap support) in wrong file
The IO Accelerator Management Tool writes the preallocate_memory parameter to the
/etc/modprobe.d/fio-driver.conf file, but it should be writing the option to the
/etc/modprobe.d/iomemory-vsl.conf file. Preallocate is still enabled properly.