Lines Matching full:origin

39 The origin device always contains a copy of the logical block, which
52 1. An origin device - the big, slow one.
66 The origin is divided up into blocks of a fixed size.  This block size
89 complete until it has hit both the origin and cache devices.  Clean
93 to be coherent with the origin device, then all reads are served from
94 the origin device (all reads miss the cache) and all writes are
95 forwarded to the origin device; additionally, write hits cause cache
121 Migrating data between the origin and cache device uses bandwidth.
170 state for all of the origin device (compare with the dirty bitset
181    cache <metadata dev> <cache dev> <origin dev> <block size>
188  origin dev	  slow device holding original data blocks
207 			content from being different from origin block content.
210 			so they may differ from the corresponding origin blocks.
215 			the origin.	If a write goes to a cached origin
224 			to the origin's data device.
258 			  to the origin
262 			  mapped to the origin
268 			  from the origin
334 	  /dev/mapper/ssd /dev/mapper/origin 512 1 writeback default 0'
336 	  /dev/mapper/ssd /dev/mapper/origin 1024 1 writeback \