Revision 1dc10972 lib/bdev.py
| b/lib/bdev.py | ||
|---|---|---|
| 828 | 828 |
bytes = sectors * 512 |
| 829 | 829 |
if bytes < 128 * 1024 * 1024: # less than 128MiB |
| 830 | 830 |
_ThrowError("Meta device too small (%.2fMib)", (bytes / 1024 / 1024))
|
| 831 |
if bytes > (128 + 32) * 1024 * 1024: # account for an extra (big) PE on LVM |
|
| 831 |
# the maximum *valid* size of the meta device when living on top |
|
| 832 |
# of LVM is hard to compute: it depends on the number of stripes |
|
| 833 |
# and the PE size; e.g. a 2-stripe, 64MB PE will result in a 128MB |
|
| 834 |
# (normal size), but an eight-stripe 128MB PE will result in a 1GB |
|
| 835 |
# size meta device; as such, we restrict it to 1GB (a little bit |
|
| 836 |
# too generous, but making assumptions about PE size is hard) |
|
| 837 |
if bytes > 1024 * 1024 * 1024: |
|
| 832 | 838 |
_ThrowError("Meta device too big (%.2fMiB)", (bytes / 1024 / 1024))
|
| 833 | 839 |
|
| 834 | 840 |
def Rename(self, new_id): |
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