On Fri, 2 Jun 2017, feng D wrote:

hi:

Some time, the online machine will appear disk gone situation, although 
this is not very common, but we have too many machines, so still will 
encounter it.

That in the case of disk gone, /sys/block/bcache0/bcache/stop is not 
found, this case how to delete the bcache0?

An interesting question.  Is it still available from the cache device in 
/sys/fs/bcache/* somewhere?  I'm guessing not, but check.

Do you have a procedure to reproduce this problem where /sys/block/bcache0 
has been hotplugged into oblivion?


--
Eric Wheeler

There is if it is SSD gone, and how should deal with it?

We have multiple SATA disks under an SSD.--
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