Revision 153d9724 lib/backend.py
| b/lib/backend.py | ||
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| 768 | 768 |
return result |
| 769 | 769 |
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| 770 | 770 |
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def MirrorAddChild(md_cdev, new_cdev):
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"""Extend an MD raid1 array.
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def MirrorAddChildren(parent_cdev, new_cdevs):
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"""Extend a mirrored block device.
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| 773 | 773 |
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""" |
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md_bdev = _RecursiveFindBD(md_cdev, allow_partial=True)
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if md_bdev is None:
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logger.Error("Can't find md device")
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parent_bdev = _RecursiveFindBD(parent_cdev, allow_partial=True)
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if parent_bdev is None:
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logger.Error("Can't find parent device")
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return False |
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new_bdev = _RecursiveFindBD(new_cdev)
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if new_bdev is None:
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logger.Error("Can't find new device to add")
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new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs]
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if new_bdevs.count(None) > 0:
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logger.Error("Can't find new device(s) to add")
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return False |
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new_bdev.Open() |
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md_bdev.AddChild(new_bdev) |
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parent_bdev.AddChildren(new_bdevs) |
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return True |
| 786 | 785 |
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| 787 | 786 |
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def MirrorRemoveChild(md_cdev, new_cdev):
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"""Reduce an MD raid1 array.
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def MirrorRemoveChildren(parent_cdev, new_cdevs):
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"""Shrink a mirrored block device.
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| 790 | 789 |
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| 791 | 790 |
""" |
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md_bdev = _RecursiveFindBD(md_cdev)
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if md_bdev is None:
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parent_bdev = _RecursiveFindBD(parent_cdev)
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if parent_bdev is None:
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| 794 | 793 |
return False |
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new_bdev = _RecursiveFindBD(new_cdev)
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if new_bdev is None:
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new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs]
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if new_bdevs.count(None) > 0:
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| 797 | 796 |
return False |
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new_bdev.Open() |
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md_bdev.RemoveChild(new_bdev.dev_path) |
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parent_bdev.RemoveChildren(new_bdevs) |
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| 800 | 798 |
return True |
| 801 | 799 |
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| 802 | 800 |
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