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Contents

1 ¼Ò°³
2 RRD µ¥ÀÌÅÍ º£À̽º »ý¼º
3 µð½ºÅ© »ç¿ë·® ¼öÁý
4 ±×·¡ÇÁ »ý¼º

1 ¼Ò°³

¿¹Àü¿¡ Çѹø Çϵåµð½ºÅ©°¡ ²Ë Â÷¹ö¸®´Â ¹Ù¶÷¿¡, À¥ ¼­ºñ½º°¡ Á¦´ë·Î µÇÁö ¾Ê´ø ¶§°¡ ÀÖ¾ú´Ù. ÀÌ»óÇÏ°Ô »çÀÌÆ®°¡ ´À·ÁÁö±â ½ÃÀÛÇÏ´õ´Ï, ¾î´À ¼ø°£ºÎÅÍ´Â ·Î±×Àεµ ¾ÈµÇ´Â °ÍÀÌ ¾Æ´Ñ°¡. ÀÌ ¹®Á¦·Î °ÅÀÇ ¹Ý³ªÀýÀ» Çì¸Þ´Ù°¡ ¿øÀÎÀ» ¾Ë°í ÇØ°áÇßÀ» ¶§ÀÇ Ç㹫ÇÔÀ̶õ!!.

Á¶±Ý¸¸ ½Å°æÀ» ½è´Ù¸é ½±°Ô ¿øÀÎÀ» ÆÄ¾ÇÇÒ ¼ö ÀÖ¾úÀ» °ÍÀÌ´Ù. ·Î±×ÀÎÀÌ ¾ÈµÈ´Ù´Â °Ç ¼¼¼Ç°ü¸®¿¡ ¹®Á¦°¡ ÀÖ´Ù´Â °Çµ¥, ApacheÀÇ ¼¼¼Ç°ü¸®°¡ ÆÄÀϱâ¹ÝÀÌ¿´À¸´Ï, ÆÄÀϽýºÅÛ¿¡ ¹º°¡ ¹®Á¦°¡ ÀÖ´Ù´Â ½ÄÀ¸·Î ºÐ¼®ÀÌ °¡´ÉÇßÀ» °ÍÀÌ´Ù. ±×·¯³ª »ç¶÷ÀÇ °æÇè¿¡ µû¸¥ ¹®Á¦´ëÀÀ ¹æ½ÄÀ̶õ ¿ø·¡°¡ ¿ÏÀüÇÒ ¼ö°¡ ¾ø´Â ¹ýÀÌ´Ù. ´ç½Ã ³» »çÀÌÆ®´Â ¿ÜºÎÀÇ ¸î¸î ÇØÅ·½Ãµµ°¡ À־ ¿©±â¿¡ ½Å°æ¾²°í ÀÖÀ» ¶§¿´´Ù. °Å±â¿¡´Ù°¡ »çÀÌÆ®°³Æí°ú °ü·ÃµÇ¾î¼­ ÀÌ°Í Àú°Í ½Å°æÀ» ¾²´Ùº¸´Ï, ¾Æ¹«·¡µµ Á¦´ë·ÎµÈ ÆÇ´ÜÀÌ ´Ê¾îÁú ¼ö ¹Û¿¡ ¾ø¾ú´Ù.

±×·¡¼­ RRD¸¦ ÀÀ¿ëÇØ¼­ µð½ºÅ©¿ë·® °ü¸® ÅøÀ» ¸¸µé±â·Î ¸¶À½À» ¸Ô¾ú°í, ¸¶À½À» ¸ÔÀºÁö °ÅÀÇ 3°³¿ù¸¸¿¡ Ãʱ⠹öÀüÀ̶ó°í ÇÒ¸¸ÇÑ ÀÀ¿ëÀ» ¸¸µé¾ú´Ù.

2 RRD µ¥ÀÌÅÍ º£À̽º »ý¼º

¿ì¼± ´ÙÀ½°ú °°Àº ·êÀ» °¡Áö´Â µ¥ÀÌÅÍ º£À̽º¸¦ »ý¼ºÇß´Ù.
rrdtool create rrd_hda2.rrd --start 1164189432 --step 300 \ 
DS:total:GAUGE:600:U:U \ 
DS:used:GAUGE:600:U:U \ 
RRA:LAST:0.5:1:600 \ 
RRA:LAST:0.5:6:700 \ 
RRA:LAST:0.5:24:775 \ 
RRA:LAST:0.5:288:797 
 
ÀÌ µ¥ÀÌÅÍ º£À̽º´Â ÇÒ´ç·® (total)°ú »ç¿ë·® (used)µÎ°³ÀÇ Çʵ带 °¡Áø µ¥ÀÌÅ͸¦ 300ÃÊ °£°ÝÀ¸·Î ÀúÀåÇϵµ·Ï ¸¸µé¾îÁ³´Ù.

3 µð½ºÅ© »ç¿ë·® ¼öÁý

procÆÄÀÏ ½Ã½ºÅÛÀÇ Á¤º¸¸¦ ¼öÁýÇÏ´Â Agent¸¦ ¸¸µé»ý°¢À̾úÀ¸³ª, ±ÍÂ÷´ÏÁòÀ¸·Î ±×³É dfÀÇ Ç¥ÁØÃâ·ÂÀ» ÆÄ½ÌÇÏ´Â °£´ÜÇÑ CÇÁ·Î±×·¥À» ¸¸µé¾ú´Ù.
#include <stdio.h> 
 
#define MAXLINE 256 
int main(int argc, char **argv) 
{ 
    FILE *fp; 
    int state; 
    char buf[MAXLINE]; 
    int type = 0; 
    char fsname[12]; 
    char block[12]; 
    char used[12]; 
 
    char *checkFs = argv[1]; 
 
    fp = popen("/bin/df -B 1", "r"); 
    if (fp == NULL) 
    { 
        return 1; 
    } 
    while(fgets(buf, MAXLINE, fp) != NULL) 
    { 
        if(strstr(buf, checkFs)) 
        { 
            sscanf(buf,"%s %s %s %s", fsname, block, used); 
            printf("%s:%s\n", block,used); 
        } 
    } 
    pclose(fp); 
    return 0; 
} 
 
ÇÁ·Î±×·¥ÀÇ À̸§Àº dfrrd·Î °áÁ¤Çß´Ù. ±×¸®°í ´ÙÀ½°ú °°Àº ½ºÅ©¸³Æ®¸¦ ¸¸µé¾î¼­ ¸¸µé¾îÁø RRD µ¥ÀÌÅͺ£À̽º¸¦ UpdateÇϵµ·Ï Çß´Ù.
#!/bin/sh 
 
TIME=`date +%s` 
VALUE=`/usr/local/bin/dfrrd /dev/hda2 1` 
/usr/local/bin/rrdtool update /usr/local/mutihost/joinc/modules/rrd/df_hda2.rrd $TIME:$VALUE 
 
¸¸µé¾îÁø ½©½ºÅ©¸³´Â crontabÀ» ÀÌ¿ëÇØ¼­ 5ºÐ°£°ÝÀ¸·Î ½ÇÇàµÇµµ·Ï Çß´Ù.
 0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/local/bin/dfrrd.sh > /dev/null 
 

4 ±×·¡ÇÁ »ý¼º

±×·¡ÇÁ »ý¼º¿ª½Ã cronÀ» ÀÌ¿ëÇØ¼­ 5ºÐ¸¶´Ù Àç »ý¼ºµÇµµ·Ï Çß´Ù. cronÀÛ¾÷À» À§Çؼ­ ´ÙÀ½°ú °°Àº ½ºÅ©¸³Æ®¸¦ ¸¸µé¾ú´Ù.
# ÃÖ±Ù 6½Ã°£µ¿¾ÈÀÇ °á°ú¸¦ º¸¿©ÁØ´Ù. 
FROM=`echo "$CUTIME - (3600*6)" | bc` 
/usr/local/bin/rrdtool graph /usr/local/mutihost/joinc/modules/rrd/images/df_hda2.png \ 
-s $FROM --vertical-label Mbyte \ 
DEF:linea=/usr/local/mutihost/joinc/modules/rrd/df_hda2.rrd:total:LAST \ 
"CDEF:ctotal=linea,1000000,/" \ 
AREA:linea#FF0000:"TOTAL" \ 
"GPRINT:ctotal:LAST:%3.2lf Mbyte" \ 
DEF:lineb=/usr/local/mutihost/joinc/modules/rrd/df_hda2.rrd:used:LAST \ 
AREA:lineb#00FFFF:"USED" \ 
"CDEF:cused=lineb,1000000,/" \ 
"GPRINT:cused:LAST:%3.2lf Mbyte" 
 
´ÙÀ½Àº Àû¿ëµÈ °á°ú´Ù.

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