54 lines
1.6 KiB
Python
Executable file
54 lines
1.6 KiB
Python
Executable file
#!/usr/bin/python
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# Check if all libvirt domains are prepared for TRIM/fstrim
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from __future__ import division, print_function
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from lxml import objectify
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import libvirt
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import sys
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conn = libvirt.openReadOnly('qemu:///system')
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if not conn:
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print('Failed to open connection to the hypervisor!')
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sys.exit(1)
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if not hasattr(conn, "listAllDomains"):
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print('connection does not have listAllDomains(), is python-libvirt too old?')
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sys.exit(1)
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for domain in conn.listAllDomains():
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print('== {}'.format(domain.name()))
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xml = domain.XMLDesc()
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tree = objectify.fromstring(xml)
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machine = tree.os.type.get('machine')
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if machine < 'pc-i440fx-2.1':
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print('machine should be at least pc-i440fx-2.1')
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# Might want to check qemu-system-x86_64 -M help for supported
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# machines.
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if not hasattr(tree.devices, 'disk'):
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print('(has no disks)')
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continue
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# every disk should be scsi + discard=unmap
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for disk in tree.devices.disk:
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if disk.get('device') != 'disk':
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continue
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disk_desc = disk.target.get('dev')
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if disk.target.get('bus') != 'scsi':
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print('{} target should be scsi'.format(disk_desc))
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if disk.driver.get('discard') != 'unmap':
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print('{} driver should have discard=unmap'.format(disk_desc))
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# every scsi controller should be model='virtio-scsi'
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for controller in tree.devices.controller:
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if controller.get('type') != 'scsi':
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continue
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if controller.get('model') != 'virtio-scsi':
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print('scsi controller should be a virtio model')
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