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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 : /usr/lib/dracut/modules.d/80lvmthinpool-monitor/

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Current File : //usr/lib/dracut/modules.d/80lvmthinpool-monitor/start-thinpool-monitor.sh

#!/bin/sh

type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh

LVS=$(getargs rd.lvm.lv -d rd_LVM_LV=)

is_lvm2_thinp_device() {
    _device_path=$1
    _lvm2_thin_device=$(lvm lvs -S 'lv_layout=sparse && lv_layout=thin' \
        --nosuffix --noheadings -o vg_name,lv_name "$_device_path" 2> /dev/null)

    [ -n "$_lvm2_thin_device" ] && return $?
}

for LV in $LVS; do
    if is_lvm2_thinp_device "/dev/$LV"; then
        THIN_POOLS="$(lvm lvs -S 'lv_layout=sparse && lv_layout=thin' \
            --nosuffix --noheadings -o vg_name,pool_lv "$LV" \
            | awk '{printf("%s/%s",$1,$2);}') $THIN_POOLS"
    fi
done

THIN_POOLS=$(echo "$THIN_POOLS" | tr ' ' '\n' | sort -u | tr '\n' ' ')

if [ -n "$THIN_POOLS" ]; then
    if [ -e "/etc/lvm/lvm.conf" ]; then
        # Use 'monitoring=0' to override the value in lvm.conf, in case
        # dmeventd monitoring been started after the calling.
        CONFIG="activation {monitoring=0}"
    else
        CONFIG="activation {monitoring=0 thin_pool_autoextend_threshold=70 thin_pool_autoextend_percent=20}"
    fi

    while true; do
        for THIN_POOL in $THIN_POOLS; do
            lvm lvextend --use-policies --config "$CONFIG" "$THIN_POOL"
        done
        sleep 5
    done &
    echo $! > /run/thinpool-moni.pid
fi

haha - 2025