nova.conf(nova-compute.conf)之cache

http://blog.chinaunix.net/uid-26000137-id-5583962.html

修改nova.conf

disk_cachemodes="network=writeback"

Several options can be used depending on the disk type:

file

block

network

mount

Caching methods available:

none,

writethrough,

writeback,

directsync,

writethrough,

unsafe,

更多查看http://ceph.com/planet/configure-ceph-rbd-caching-on-openstack-nova/

http://docs.ceph.com/docs/master/rbd/rbd-config-ref/

修改

sed -i '/#disk_cachemodes/adisk_cachemodes="network=writeback"' /etc/nova/nova.conf

重启后验证：

#virsh dumpxml instance-00000026