Simplified distributed block storage with strong consistency, like in Ceph
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<!-- Example libvirt VM configuration with Vitastor disk -->
<domain type='kvm'>
<name>debian9</name>
<uuid>96f277fb-fd9c-49da-bf21-a5cfd54eb162</uuid>
<memory unit="KiB">524288</memory>
<currentMemory>524288</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='x86_64'>hvm</type>
<boot dev='hd' />
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<disk type='network' device='disk'>
<target dev='vda' bus='virtio' />
<driver name='qemu' type='raw' />
<!-- name is Vitastor image name -->
<!-- query (optional) is Vitastor's etcd_prefix -->
<source protocol='vitastor' name='debian9' query='/vitastor'>
<!-- config (optional) is the path to Vitastor's configuration file -->
<config file='/etc/vitastor/vitastor.conf' />
<!-- hosts = etcd addresses -->
<host name='192.168.7.2' port='2379' />
</source>
<!-- required because Vitastor only supports 4k physical sectors -->
<blockio physical_block_size="4096" logical_block_size="512" />
</disk>
<interface type='network'>
<source network='default' />
</interface>
<graphics type='vnc' port='-1' />
</devices>
</domain>