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[redhat6.5] multipath ¹®Á¦¶§ - dracut
±Û¾´ÀÌ : theko ³¯Â¥ : 2016-06-28 (È­) 11:54 Á¶È¸ : 11922
RHEL6 ¹öÀüÀ» »ç¿ë Çϸ鼭 ÀÌ·± °æ¿ì´Â »ý°¢µµ ¸øÇß´Ù.

Link : https://access.redhat.com/site/solutions/315923
Link : https://access.redhat.com/site/solutions/320053
Link : https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.1_Technical_Notes/dracut.html

°í°´»ç¿¡¼­ ¹ß»ýµÈ ¹®Á¦·Î ±âÁ¸ 5°³ÀÇ LUN À» »ç¿ëÇÏ´Ù°¡ ÇÊ¿ä°¡ ¾ø°ÔµÈ LUN 2°³¸¦ Online Áß¿¡ Á¦°Å ÇÏ¿´½À´Ï´Ù.
±×·±µ¥ ¹®Á¦´Â ÀçºÎÆà ÈÄ Storage Volume Á¤º¸°¡ duplicate PV¡¯s and Couldn't find device with uuid µÈ´Ù´Â °Í ÀÔ´Ï´Ù.

¹°·Ð  /etc/multipathd/* ¸ðµç Á¤º¸¸¦ delete Çϸé ÇØ°áÀÌ µÇ¾úÁö¸¸¡¦
¶Ç ´Ù½Ã ÀçºÎÆà ÇÏ°ÔµÇ¸é  ¹ß»ýÀÌ µÈ´Ù´Â °Í ÀÔ´Ï´Ù.

¿øÀÎÀ» ã¾Æº¸´øÁß À§ ¸µÅ©¿¡ ÷ºÎµÈ´ë·Î RHEL 6.1 ºÎÅÍ RHEL 6.4 GA ¹öÀü±îÁö dracut À» ÀÌ¿ëÇÏ¿© initramfs ÆÄÀÏÀ» »ý¼ºÇÏ°Ô µÇ¸é /etc/lvm/* Á¤º¸¿Í /etc/multipathd/* Á¤º¸°¡ Æ÷ÇÔµÇ¾î ¹ß»ýµÇ´Â À̽´·Î ±âÁ¸ 5°³ LUN »óÅÂÀ϶§ÀÇ /etc/multipath/* Á¤º¸·Î ºÎÆÃÀ» ½ÃµµÇÏÁö¸¸ ½ÇÁ¦ 3°³ÀÇLUN ¸¸ ÀÖ´Ùº¸´Ï Storage Volume ¿¡ ´ëÇÑ LVM, MultiPath Á¤º¸°¡ ¸ÂÁö ¾Ê´Â ¹®Á¦°¡ ¹ß»ý µÇ¾ú½À´Ï´Ù.

ÇØ°á ¹æ¹ý)
1. ±âÁ¸ OS ¼³Ä¡ ÈÄ »ý¼ºµÈ initramfs ÆÄÀÏ·Î ºÎÆà ÈÄ dracut À» ÀÌ¿ëÇÏ¿© »õ·Î¿î initramfs ÆÄÀÏÀ» »ý¼º ÇÏ°í Àç ºÎÆà Çϰųª

2. /etc/dracut.conf ÆÄÀÏ¿¡ omit_dracutmodules+=¡±multipath¡± À» Ãß°¡ ÈÄ initramfs ¸¦ »ý¼º ÇÏ¿©¾ß ÇÕ´Ï´Ù.

dracut -H -f /boot/initramfs-$(uname -r).img $(uname -r)  ¸¦ ½ÇÇàÇÏ°í ¸®ºÎÆÃÇؾßÇÑ´Ù. 


Ãß°¡1) dracut ÇÒ¶§ -H ¿É¼Çµµ °ËÅä ´ë»óÀÓ.
-H, –hostonly          Host-Only mode: Install only what is needed for
booting the local host instead of a generic host.


Âü°í»çÀÌÆ® : http://blog.seabow.pe.kr/?p=3755

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