1make-bcache(8)              System Manager's Manual             make-bcache(8)
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NAME

6       make-bcache - create a cache device
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SYNOPSIS

9       make-bcache [ -U UUID ] [ -b bucket-size ] device
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OPTIONS

12       -C     Create a cache
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14       -B     Create  a  backing  device  (kernel functionality not yet imple‐
15              mented)
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17       -U UUID
18              Create a cache device with the specified UUID
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20       -b bucket-size
21              Specifies the bucket size. Allocation is done in terms of  buck‐
22              ets,  and  cache  hits  are  counted  per bucket; thus a smaller
23              bucket size will give better cache utilization, but poorer write
24              performance. The bucket size is intended to be equal to the size
25              of your SSD's erase blocks, which seems to be 128k-512k for most
26              SSDs.  Must  be  a  power  of two; accepts human readable units.
27              Defaults to 128k.
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31                                                                make-bcache(8)