42 lines
1 KiB
Python
42 lines
1 KiB
Python
#!/usr/bin/env python3
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from subprocess import check_output
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from sys import argv, exit
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import re
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def to_bytes(size):
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suffixes = ['', 'K', 'M', 'G', 'T', 'P']
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number, suffix = re.match(r'([0-9\.]+)([A-Z]?)', size).groups()
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if suffix not in suffixes:
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print('Unexpected suffix "{}" in size "{}"'.format(suffix, size)
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return float(number) * 1024**suffixes.index(suffix)
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pool = argv[1]
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critical_perc = float(argv[2])
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try:
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output = check_output(['zpool', 'list', '-Ho', 'size,alloc', pool])
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except:
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print('CRITICAL - "zpool" failed')
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exit(2)
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size, alloc = output.decode('UTF-8').strip().split()
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try:
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size_b = to_bytes(size)
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alloc_b = to_bytes(alloc)
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except:
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print('CRITICAL - Could not process output of "zpool list": {}'.format(output))
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exit(2)
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percentage = alloc_b / size_b * 100
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if percentage > critical_perc:
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print('CRITICAL - Pool "{}" uses {:.2f}% of its space'.format(pool, percentage))
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exit(2)
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print('OK - Pool "{}" uses {:.2f}% of its space'.format(pool, percentage))
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exit(0)
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