(CentOS¿¡¼ Å×½ºÆ® ÇØ º¸¾ÒÀ¸¸ç, Fedora ¹× ´Ù¸¥ Linux distributionµé¿¡¼µµ À¯»çÇÒ °ÍÀÓ.)
Recommended setting
- ¿ì¼±, boot partitionÀÇ °æ¿ì¿¡´Â raid1¸¸ ÀÛµ¿ÇÔ.
- /boot´Â µû·Î ÀâÁö ¾ÊÀ¸¸ç, hard disk Àüü¸¦ / À¸·Î ÀâÀ» °Í.
- swap partitionÀº ÀâÁö ¾Ê°í, swap fileÀ» / ¿¡ ¸¸µé °Í
swap file Àâ´Â ¹æ¹ý (5GBÀÇ °æ¿ì)
# dd if=/dev/zero of=/swapfile bs=1024 count=5000000 # mkswap /swapfile 5000000 # sync # swapon /swapfile
/etc/fstab¿¡ /swapfile swap swap defaults 0 0 À» Ãß°¡ÇÔ.
µÎ¹øÂ° hard disk, Áï /dev/sdb¿¡ ÀÖ´ø hard disk°¡ ºÎÆÃ ½Ã BIOS¿¡ ÀÇÇØ¼ ÀÚµ¿À¸·Î /dev/sda·Î ¿Å°ÜÁ³À» ¶§¿¡µµ ºÎÆÃÀÌ °¡´ÉÇϵµ·Ï ´ÙÀ½ ¸í·É ½ÇÇà
anaconda¿¡¼ À̰ÍÀ» ÇØÁÖÁö ¾ÊÀ¸¹Ç·Î OS ¼³Ä¡ ÈÄ¿¡ ¹Ýµå½Ã ½ÇÇà ÇØÁÖ¾î¾ß ÇÔ. µÎ¹øÂ° hard disk·Î »õ·Î ÀåÂøÇÑ disk¿¡µµ ¹Ýµå½Ã ½ÇÇàÀ» ÇØÁÖ¾î¾ß ÇÔ.
# grub
grub> device (hd0) /dev/sdb
grub> root (hd0,0)
grub> setup (hd0)
¸¸¾à ÀÌ¹Ì ºÎÆÃÀÌ ½ÃµµµÇ¾î GRUB ¿¡·¯°¡ ¶°ÀÖ´Â »óŶó¸é, ¸®´ª½º ¼³Ä¡ CD·Î "linux rescue" ¸ðµå·Î ÀçºÎÆÃ ÇÑ µÚ¿¡ ¾Æ·¡ ¸í·ÉÀ» ½ÇÇàÇÔ. À̶§´Â ÀÌ¹Ì /dev/sda·Î ÀÚµ¿ º¯°æÀÌ µÇ¾î ÀÖÀ¸¹Ç·Î, "device (hd0) /dev/sdb" lineÀÌ ÇÊ¿ä¾ø°Ô µÊ.
# grub
grub> root (hd0,0)
grub> setup (hd0)
µÎ¹øÂ° disk, Áï /dev/sdb°¡ °íÀå³ °æ¿ì
- °íÀå³ hard disk¸¦ »©°í »õ hard disk¸¦ /dev/sdb¿¡ ÀåÂøÇÏ°í ´Ù½Ã ºÎÆÃÀ» ÇÔ.
- ¾Æ·¡¿¡ ¼³¸íÇÑ RAID rebuild¸¦ ¼öÇà.
- À§¿¡ ¼³¸íÇÑ GRUB ¼³Ä¡¸¦ »õ·Î ¼³Ä¡ÇÑ hard disk¿¡µµ ÇØÁÖ¾î¾ß ÇÔ.
ù¹øÂ° disk, Áï /dev/sda°¡ °íÀå³ °æ¿ì
- ¿ø·¡ /dev/sdb¿¡ ÀÖ´ø hard disk, Áï °íÀ峪Áö ¾ÊÀº hard disk¸¦ /dev/sda·Î ¿Å±â°í, »õ hard disk¸¦ /dev/sdb¿¡ ÀåÂøÇÑ µÚ¿¡ ºÎÆÃ
- ¾Æ·¡¿¡ ¼³¸íÇÑ RAID rebuild¸¦ ¼öÇà.
- À§¿¡ ¼³¸íÇÑ GRUB ¼³Ä¡¸¦ »õ·Î ¼³Ä¡ÇÑ hard disk¿¡µµ ÇØÁÖ¾î¾ß ÇÔ.
RAID rebuild
»õ·Î hard disk¸¦ ÀåÂøÇÑ µÚ¿¡ raid1À» rebuild ÇÏ´Â ¹æ¹ýÀº ¾Æ·¡¿Í °°À½. (/dev/sdb°¡ »õ·Î ¼³Ä¡ÇÑ hard disk)
- ¿ì¼±, partition tableÀ» »õ hard disk·Î º¹»çÇÔ. (sda¿Í sdb¸¦ È¥µ¿ÇÏ´Â ½Ç¼ö¸¦ ÇÏÁö ¾Êµµ·Ï ÁÖÀÇ)
#sfdisk -d /dev/sda > partitions.sda #sfdisk /dev/sdb < partitions.sda - »õ hard disk¸¦ raid1¿¡ Ãß°¡ÇÔ.
# mdadm --manage /dev/md0 --add /dev/sdb1 - ¸¸¾à ÁøÇà »óȲÀ» º¸°í ½Í´Ù¸é,
# watch cat /proc/mdstat À» ½ÇÇàÇÔ.
³¡.
±×¹ÛÀÇ Á¤º¸µé
GRUB »èÁ¦
# dd if=/dev/zero of=/dev/sdX bs=512 count=1
Just remove MBR, without the partition table: # dd if=/dev/zero of=/dev/sdX bs=446 count=1
Manually rescan sata hard disk for hot plugin
# echo "- - -" > /sys/class/scsi_host/hostX/scan
Manually creating raid device entries
# mknod /dev/md0 b 9 0 # mknod /dev/md1 b 9 1
Creating mdadm.conf
# mdadm --detail --scan >> /etc/mdadm.conf
sataÀÇ hot plugin ±â´ÉÀ» »ç¿ëÇϸé ÄÄÇ»Å͸¦ shutdown ÇÏÁö ¾Ê°í hard disk ±³Ã¼°¡ °¡´ÉÇϳª ¿ÜºÎ¿¡¼ Å»ÂøÀÌ °¡´ÉÇÑ ÇüŰ¡ ¾Æ´Ñ °æ¿ì¿¡´Â ¸Å¿ì À§ÇèÇÑ ÀÏÀÓ.
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