make-bcache(8)
create a cache device
SYNOPSIS
make-bcache
[ -U UUID ]
[ -b bucket-size ]
device
OPTIONS
- -C
-
Create a cache
- -B
-
Create a backing device (kernel functionality not yet implemented)
- -U UUID
-
Create a cache device with the specified UUID
- -b bucket-size
-
Specifies the bucket size. Allocation is done in terms of buckets, and cache
hits are counted per bucket; thus a smaller bucket size will give better cache
utilization, but poorer write performance. The bucket size is intended to be
equal to the size of your SSD's erase blocks, which seems to be 128k-512k for
most SSDs. Must be a power of two; accepts human readable units. Defaults to
128k.
