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решение_soft_raid
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решение_soft_raid [2011/02/24 17:47] val |
решение_soft_raid [2013/05/22 13:50] |
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| - | ====== Решение Soft Raid ====== | ||
| - | ===== FreeBSD ===== | ||
| - | |||
| - | ===== Linux ===== | ||
| - | |||
| - | [[http://ru.wikipedia.org/wiki/Mdadm]] | ||
| - | |||
| - | [[http://tldp.org/HOWTO/Software-RAID-HOWTO.html]] | ||
| - | |||
| - | [[http://adminletters.blogspot.com/2009/07/raid1-debian.html]] | ||
| - | |||
| - | <code> | ||
| - | Создание двух идентичных разделов | ||
| - | |||
| - | Создание RAID массива | ||
| - | |||
| - | # mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1 | ||
| - | |||
| - | # mdadm --detail --scan >> /etc/mdadm/mdadm.conf | ||
| - | |||
| - | # cat /proc/mdstat | ||
| - | |||
| - | # mkfs.ext4 /dev/md0 | ||
| - | |||
| - | Перенос на RAID каталога home | ||
| - | |||
| - | # mount /dev/md0 /mnt | ||
| - | |||
| - | # mv /home/* /mnt/ | ||
| - | |||
| - | # umount /mnt | ||
| - | |||
| - | # mount /dev/md0 /home | ||
| - | |||
| - | Настройка монтирования RAID в каталог /home | ||
| - | |||
| - | # blkid /dev/md0 | ||
| - | /dev/md0: UUID="b09cce35-d36b-42fd-99aa-0cee46e7365b" TYPE="ext4" | ||
| - | |||
| - | # cat /etc/fstab | ||
| - | ... | ||
| - | UUID=b09cce35-d36b-42fd-99aa-0cee46e7365b /home ext4 errors=remount-ro 0 1 | ||
| - | |||
| - | Останавливаем систему, удаляем диск. | ||
| - | |||
| - | Загружаемся с дистрибутивного CD в режиме восстановления | ||
| - | комментируем монтирование /home в /etc/fstab | ||
| - | загружаем систему без /home | ||
| - | |||
| - | # cat /proc/mdstat | ||
| - | ... | ||
| - | md0 : inactive sdb1[1](S) | ||
| - | 1044096 blocks | ||
| - | |||
| - | Возвращаем RAID в работоспособное состояние | ||
| - | |||
| - | # mdadm --assemble --scan | ||
| - | # cat /proc/mdstat | ||
| - | ... | ||
| - | md0 : active raid1 sdb1[1] | ||
| - | 1043136 blocks [2/1] [_U] | ||
| - | |||
| - | Возвращаем запись монтирования /home в /etc/fstab | ||
| - | |||
| - | Перезагружаем систему | ||
| - | |||
| - | Останавливаем систему, добавляем новый диск. | ||
| - | |||
| - | Создаем раздел на новом диске | ||
| - | |||
| - | Добавляем раздел нового диска в RAID | ||
| - | |||
| - | # mdadm /dev/md0 --add /dev/sdc1 | ||
| - | |||
| - | # cat /proc/mdstat | ||
| - | ... | ||
| - | md0 : active raid1 sdb1[2] sdc1[1] | ||
| - | 1043136 blocks [2/1] [_U] | ||
| - | [==============>......] recovery = 73.5% (767744/1043136) finish=0.0min speed=191936K/sec | ||
| - | |||
| - | # cat /proc/mdstat | ||
| - | ... | ||
| - | md0 : active raid1 sdb1[0] sdc1[1] | ||
| - | 1043136 blocks [2/2] [UU] | ||
| - | |||
| - | Удаление RAID массива | ||
| - | |||
| - | # mdadm -S /dev/md_d0 | ||
| - | # mdadm --zero-superblock /dev/sdb1 | ||
| - | # mdadm --zero-superblock /dev/sdc1 | ||
| - | </code> | ||
решение_soft_raid.txt · Last modified: 2013/05/22 13:50 (external edit)
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