Synnefo » snf-ganeti

# the set of network-mirrored disk templates

DTS_INT_MIRROR = compat.UniqueFrozenset([DT_DRBD8])

# the set of externally-mirrored disk templates (e.g. SAN, NAS)

DTS_EXT_MIRROR = compat.UniqueFrozenset([

  DT_DISKLESS, # 'trivially' externally mirrored

  DT_SHARED_FILE,

  DT_BLOCK,

  DT_RBD,

  DT_EXT,

  ])

# the set of non-lvm-based disk templates

DTS_NOT_LVM = compat.UniqueFrozenset([

  DT_DISKLESS,

  DT_FILE,

  DT_SHARED_FILE,

  DT_BLOCK,

  DT_RBD,

  DT_EXT,

  ])

# the set of disk templates which can be grown

DTS_GROWABLE = compat.UniqueFrozenset([

  DT_PLAIN,

  DT_DRBD8,

  DT_FILE,

  DT_SHARED_FILE,

  DT_RBD,

  DT_EXT,

  ])

# the set of disk templates that allow adoption

DTS_MAY_ADOPT = compat.UniqueFrozenset([

  DT_PLAIN,

  DT_BLOCK,

  ])

# the set of disk templates that *must* use adoption

DTS_MUST_ADOPT = compat.UniqueFrozenset([DT_BLOCK])

# the set of disk templates that allow migrations

DTS_MIRRORED = frozenset.union(DTS_INT_MIRROR, DTS_EXT_MIRROR)

# the set of file based disk templates

DTS_FILEBASED = compat.UniqueFrozenset([

  DT_FILE,

  DT_SHARED_FILE,

  ])

# the set of disk templates that can be moved by copying

# Note: a requirement is that they're not accessed externally or shared between

# nodes; in particular, sharedfile is not suitable.

DTS_COPYABLE = compat.UniqueFrozenset([

  DT_FILE,

  DT_PLAIN,

  ])

# the set of disk templates that are supported by exclusive_storage

DTS_EXCL_STORAGE = compat.UniqueFrozenset([DT_PLAIN])

# templates for which we don't perform checks on free space

DTS_NO_FREE_SPACE_CHECK = compat.UniqueFrozenset([

  DT_FILE,

  DT_SHARED_FILE,

  DT_RBD,

  DT_EXT,

  ])

DTS_BLOCK = compat.UniqueFrozenset([

  DT_PLAIN,

  DT_DRBD8,

  DT_BLOCK,

  DT_RBD,

  DT_EXT,

  ])