Hello, I have dm-cache configuraion with SSD in writeback mode. On every boot an entire cache resyncs to an origin device, even if it was clean before on shutdown. It takes time and full bandwidth of an origin device. Is there reason for this behavior or is it a bug? Why we do not trust a cache metadata? My configuration details, if necessary: storage-cache_cdata:0 41943040 linear storage-cache_cmeta: 0 1048576 linear storage-data: 0 1953513472 cache 8 989/131072 128 173945/327680 610488 20046 574861 3817439 0 0 0 1 writeback 2 migration_threshold 2048 mq 10 random_threshold 4 sequential_threshold 512 discard_promote_adjustment 1 read_promote_adjustment 4 write_promote_adjustment 8 rw - storage-data_corig: 0 1953513472 linear - Bogdan -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel