Lines Matching refs:origin

32 The origin device always contains a copy of the logical block, which
45 1. An origin device - the big, slow one.
59 The origin is divided up into blocks of a fixed size.  This block size
82 complete until it has hit both the origin and cache devices.  Clean
86 to be coherent with the origin device, then all reads are served from
87 the origin device (all reads miss the cache) and all writes are
88 forwarded to the origin device; additionally, write hits cause cache
114 Migrating data between the origin and cache device uses bandwidth.
168 state for all of the origin device (compare with the dirty bitset
177  cache <metadata dev> <cache dev> <origin dev> <block size>
183  origin dev	 : slow device holding original data blocks
198 		   content from being different from origin block content.
201 		   so they may differ from the corresponding origin blocks.
206 		   the origin.	If a write goes to a cached origin
236 			     to the origin
240 			     mapped to the origin
246 			     from the origin
295 	/dev/mapper/ssd /dev/mapper/origin 512 1 writeback default 0'
297 	/dev/mapper/ssd /dev/mapper/origin 1024 1 writeback \