Add unsafe profile for disk VM's
Change-Id: Ia6666ea124bf0f238addba56bb6466318903206b
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@ -156,6 +156,7 @@ that will be created as file-backed volumes.
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* io_profile - One of the below I/O configurations
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* fast - In the case of a VM disruption, synchronous I/O may be lost. Better throughput.
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* safe - Synchronous I/O fully written to disk, slower throughput.
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* unsafe - Host are caching all disk IO, and sync requests from VM are ignored. Maximum performance.
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* bootstrap - For VMs that are bootstrapped by the framework, not Airship, use this disk
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* format - For VMs that are bootstrapped by the framework, describe how the disk should be
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formatted and mounted when desired.
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@ -444,6 +444,9 @@ vm_create_vols(){
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elif [[ "$io_prof" == "safe" ]]
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then
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DISK_OPTS="bus=virtio,cache=directsync,discard=unmap,format=qcow2,io=native"
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elif [[ "$io_prof" == "unsafe" ]]
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then
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DISK_OPTS="bus=virtio,cache=unsafe,format=qcow2"
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else
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DISK_OPTS="bus=virtio,format=qcow2"
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fi
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