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Query band size of a sparsebundle (also accessible in Info.plist of bundle)
# find out how big the sparse-band-size is in a mounted volume
hdiutil info -verbose | grep band-size
# default Time Machine sparsbundle virtual-band-size = 16384 (8MB)
# create-sparsebundle's virtual-band-size = 262144 (128MB)

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@sansumbrella sansumbrella commented Nov 11, 2012

Alternatively, look at the Info.plist in the .sparsebundle. This band-size is 512x the virtual-band-size returned by hdiutil.
Time Machine default band-size:
create-sparsebundles' band-size:

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