[sheepdog-users] How enable Object Cache

Cristian Del Carlo cristian.delcarlo at targetsolutions.it
Wed Sep 21 11:34:49 CEST 2016


Hi list,

i have installed sheepdog on two server with Centos 7.2.

# sheep -v
Sheepdog daemon version 1.0_41_gb5a7613

I am tring to enable object cache to test i/o write of vm but the following
options seem to be for me incorrect:

sheep -w size=200G # enable object cache with 200G space
sheep -w size=50G,directio # enable object cache with 50G space with
O_DIRECT for cached objects

On man page of "sheep" i see that:

       -w, --wq-threads
              specify a number of threads for workqueue

How can i enable Object Cache?

Best regards,


*Cristian Del Carlo*
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