36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import glob
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from oslo_log import log as logging
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from oslo_utils import units
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from fuxi import exceptions
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LOG = logging.getLogger(__name__)
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class BlockerDeviceManager(object):
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def device_scan(self):
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return glob.glob('/sys/block/*')
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def get_device_size(self, device):
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try:
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nr_sectors = open(device + '/size').read().rstrip('\n')
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sect_size = open(device + '/queue/hw_sector_size')\
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.read().rstrip('\n')
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return (float(nr_sectors) * float(sect_size)) / units.Gi
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except IOError as e:
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LOG.error("Failed to read device size. %s", str(e))
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raise exceptions.FuxiException(str(e))
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