# Module H5FD

File driver constants (H5FD*).

## Module constants

### Memory usage types for MULTI file driver

h5py.h5fd.MEM_DEFAULT

h5py.h5fd.MEM_SUPER

h5py.h5fd.MEM_BTREE

h5py.h5fd.MEM_DRAW

h5py.h5fd.MEM_GHEAP

h5py.h5fd.MEM_LHEAP

h5py.h5fd.MEM_OHDR

h5py.h5fd.MEM_NTYPES

### Data transfer modes for MPIO driver

h5py.h5fd.MPIO_INDEPENDENT

h5py.h5fd.MPIO_COLLECTIVE

### File drivers types

h5py.h5fd.CORE

h5py.h5fd.FAMILY

h5py.h5fd.LOG

h5py.h5fd.MPIO

h5py.h5fd.MULTI

h5py.h5fd.SEC2

h5py.h5fd.STDIO

h5py.h5fd.WINDOWS

### Logging driver settings

Note

Not all logging flags are currently implemented by HDF5.

h5py.h5fd.LOG_LOC_READ

h5py.h5fd.LOG_LOC_WRITE

h5py.h5fd.LOG_LOC_SEEK

h5py.h5fd.LOG_LOC_IO

h5py.h5fd.LOG_FILE_READ

h5py.h5fd.LOG_FILE_WRITE

h5py.h5fd.LOG_FILE_IO

h5py.h5fd.LOG_FLAVOR

h5py.h5fd.LOG_NUM_READ

h5py.h5fd.LOG_NUM_WRITE

h5py.h5fd.LOG_NUM_SEEK

h5py.h5fd.LOG_NUM_IO

h5py.h5fd.LOG_TIME_OPEN

h5py.h5fd.LOG_TIME_READ

h5py.h5fd.LOG_TIME_WRITE

h5py.h5fd.LOG_TIME_SEEK

h5py.h5fd.LOG_TIME_CLOSE

h5py.h5fd.LOG_TIME_IO

h5py.h5fd.LOG_ALLOC

h5py.h5fd.LOG_ALL