Hi, After creating a LVM cache LV, I have the following devices in /dev/mapper: MyCache-CacheDataLV_cdata MyCache-CacheDataLV_cmeta MyCache-OriginLV MyCache-OriginLV_corig I want to use cache_check to check the cache metadata: # cache_check /dev/mapper/MyCache-CacheDataLV_cmeta syscall 'open' failed: Device or resource busy Note: you cannot run this tool with these options on live metadata. The same issue is seen when I try to use era_check to check the metadata device of an era target. How to 'offline' the cache/metadata device? Thanks Khitai -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
