root / lib / storage / filestorage.py @ 5d94c034
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# Copyright (C) 2013 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""File storage functions.
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"""
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import os |
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from ganeti import errors |
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def GetSpaceInfo(path): |
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"""Retrieves the free and total space of the device where the file is
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located.
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@type path: string
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@param path: Path of the file whose embracing device's capacity is
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reported.
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@return: a dictionary containing 'vg_size' and 'vg_free' given in MebiBytes
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"""
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try:
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result = os.statvfs(path) |
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free = (result.f_frsize * result.f_bavail) / (1024 * 1024) |
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size = (result.f_frsize * result.f_blocks) / (1024 * 1024) |
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return {"vg_size": size, "vg_free": free} |
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except OSError, e: |
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raise errors.CommandError("Failed to retrieve file system information about" |
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" path: %s - %s" % (path, e.strerror))
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