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Revision 620a85fd

ID620a85fdb0b9221dbbb32ef1366deded932c83e1

Added by Iustin Pop about 13 years ago

Unify the query fields for the storage framework

This patch unifies the query fields in the storage framework for all
types. Note that the information is still computed on-demand, so if e.g.
the used disk space is not requested for the ‘file’ type, it won't be
computed on nodes.

Summary of changes:
- improve the LVM storage type to support multiple lvm fields in the
LIST_FIELDS declaration and constant (not-computed via lvm commands)
fields
- rename utils.GetFilesystemFreeSpace to utils.GetFilesystemStats
returning tuple of (total, free)
- add used and free as valid fields for lvm-vg (use being computed as
vg_size-vg_free)
- make allocatable accepted for all types (ones which are always
allocatable always return True)
- add a new list field ‘type’ that gives the current selected type; not
much useful today (except for understanding what the default output
is) but in the future might help if we want to list multiple types
- add type, size and allocatable to the default output field list
- update the man page with details on how, for file storage, size ≠ used
+ free for non-mountpoint cases

Signed-off-by: Iustin Pop <>
Reviewed-by: Michael Hanselmann <>

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