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.

GetAllDrivesIOStats returns IO stats of all drives found in the machine.

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.

DevID is the drive major and minor ids.

Info stat fs struct is container which holds following values Total - total size of the volume / disk Free - free size of the volume / disk Files - total inodes available Ffree - free inodes available FSType - file system type.

IOStats contains stats of a single drive.

AllDrivesIOStats is map between drive devices and IO stats.