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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Directory : /lib/python3.6/site-packages/sos/report/plugins/

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Current File : //lib/python3.6/site-packages/sos/report/plugins/vdo.py

# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.

from sos.report.plugins import Plugin, RedHatPlugin


class Vdo(Plugin, RedHatPlugin):

    short_desc = 'Virtual Data Optimizer'

    plugin_name = 'vdo'
    profiles = ('storage',)
    packages = ('vdo',)
    files = (
        '/sys/kvdo',
        '/sys/uds',
        '/etc/vdoconf.yml',
        '/etc/vdoconf.xml'
    )

    def setup(self):
        self.add_copy_spec(self.files)
        vdos = self.collect_cmd_output('vdo list --all')
        for vdo in vdos['output'].splitlines():
            self.add_cmd_output(f"vdo status -n {vdo}")
        self.add_cmd_output([
            'vdostats --human-readable',
            'vdostats --verbose',
        ])
        vdo_cols1 = ('vdo_slab_size,vdo_header_size,vdo_minimum_io_size,'
                     'vdo_block_map_cache_size,vdo_block_map_era_length,'
                     'vdo_write_policy,vdo_max_discard')

        vdo_cols2 = ('vdo_ack_threads,vdo_bio_rotation,vdo_bio_threads,'
                     'vdo_cpu_threads,vdo_hash_zone_threads,'
                     'vdo_logical_threads,vdo_physical_threads')
        vdo_cols3 = ('vdo_compression,vdo_deduplication,'
                     'vdo_use_metadata_hints,vdo_use_sparse_index,'
                     'vdo_index_state,vdo_index_memory_size')
        self.add_cmd_output([f"lvs -a -o +{cols}"
                             for cols in [vdo_cols1, vdo_cols2]])
        lvm_vdos = self.collect_cmd_output(f"lvs -a -o +{vdo_cols3}")
        if lvm_vdos['status'] == 0:
            for vdo in lvm_vdos['output'].splitlines():
                # we can find the pool and pool data maps in the output
                # of lvs, in the column Volume type, marked as 'D'
                lv, vg, lv_attr = vdo.split()[:3]
                if lv_attr.startswith("D"):
                    vdo_path = f"{vg}-{lv.strip('[]')}"
                    self.add_cmd_output(
                        f"vdodumpconfig /dev/mapper/{vdo_path}"
                    )

# vim set et ts=4 sw=4 :

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