# Functions
AlignedBlock - pass through to directio implementation.
DisableDirectIO - disables directio mode.
FadviseDontNeed invalidates page-cache.
Fdatasync - fdatasync() is similar to fsync(), but does not flush modified metadata unless that metadata is needed in order to allow a subsequent data retrieval to be correctly handled.
GetHealthInfo about the drive.
GetInfo returns total and free bytes available in a directory, e.g.
IsRootDisk returns if diskPath belongs to root-disk, i.e the disk mounted at "/".
OpenFileDirectIO - bypass kernel cache.
SameDisk reports whether di1 and di2 describe the same disk.