RAID 5 Неактивен при загрузке - ошибка: найдены два диска с индексом 1 для RAID md / 0
Моя ОС - Ubuntu 12.04.2 LTS с этим ядром: 3.2.0-49-generic # 75-Ubuntu SMP Tue Jun 18 17:39:32 UTC 2013 x86_64 x86_64 x86_64 GNU / Linux
У меня есть массив RAID-массива 5, состоящий из 3-х жестких дисков и внезапно, когда он начал неактивно во время загрузки. Поскольку на нем установлен домашний каталог, система не может загрузиться, и она требует вмешательства пользователя вручную. Я нашел похожие отчеты на форумах, но у большинства из них есть неисправный жесткий диск, что для меня не так.
Остановить массив (mdadm -stop / dev / md0) и снова запустить его (mdadm -assemble --scan / dev / md0) не показывает ошибок (нет исправления или восстановления массива) и то он может быть установлен правильно (ручное крепление), поэтому почему его нельзя воспитывать при загрузке?
После проверки smartctl для всех жестких дисков, составляющих массив RAID (sda, sdb, sdc), я мог бы не наблюдайте никаких ошибок (нет Current_Pending_Sector, UDMA_CRC_Error_Count, Offline_Uncorrectable).
Одна вещь, которую я заметил, которая в основном является причиной проблемы, заключается в том, что grub-probe возвращает эту ошибку: «Ошибка: найдено два диска с индексом 1 для RAID md /0."
Запустив ту же команду с -v (verbose output), я могу заметить две строки, комментирующие «grub-probe: info: Found array md / 0 (mdraid1x)». сразу после зондирования hd0 и hd1, которые соответственно отображаются на sda и sdb. Итак, sdc не читается метаданных grub для рейда? Люди, столкнувшиеся с этой проблемой, предложили обновить метаданные рейда от 0.90 до 1.x, но мой рейд уже использует 1.2.
Я попытался вручную вручную свернуть жесткий диск sdc (первый раз удалил его и повторно добавили его, а во второй раз с помощью mdadm --zero-superblock / dev / sdc) и заставили рейд перестроить, но ошибка не может исчезнуть, поэтому теперь я застрял. Кто-нибудь знает, что может быть проблемой и как ее можно устранить?
Ниже приведен список команд и их вывод, которые я использовал для диагностики проблемы:
/ proc / stat после загрузки
# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : inactive sdc1[3](S) sda1[4](S) sdb[5](S)
5860540617 blocks super 1.2
unused devices: <none>
/etc/mdadm/mdadm.conf
# cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# instruct the monitoring daemon where to send mail alerts
MAILADDR root
# definitions of existing MD arrays
ARRAY /dev/md/0 metadata=1.2 UUID=1b273efc:62f3bc36:4579f11d:15bbc75e name=ubuntu:0
# This file was auto-generated on Mon, 27 Aug 2012 17:33:16 +0300
# by mkconf $Id$
mdadm --examine --scan
# mdadm --examine --scan
ARRAY /dev/md/0 metadata=1.2 UUID=1b273efc:62f3bc36:4579f11d:15bbc75e name=ubuntu:0
# mdadm --detail --scan
mdadm: cannot open /dev/md/0: No such file or directory
# mdadm --detail --scan /dev/md0
mdadm: md device /dev/md0 does not appear to be active.
mdadm --stop / dev / md0 & amp; & amp; & amp; mdadm --assemble --scan / dev / md0 & amp; & amp; & amp; mdadm --detail / dev / md0
# mdadm --stop /dev/md0
mdadm: stopped /dev/md0
# mdadm --assemble --scan /dev/md0
mdadm: /dev/md0 has been started with 3 drives.
# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sda1[4] sdc1[3] sdb1[5]
3907025920 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
unused devices: <none>
# mdadm --detail /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Sat Mar 24 15:31:43 2012
Raid Level : raid5
Array Size : 3907025920 (3726.03 GiB 4000.79 GB)
Used Dev Size : 1953512960 (1863.02 GiB 2000.40 GB)
Raid Devices : 3
Total Devices : 3
Persistence : Superblock is persistent
Update Time : Sun Jul 21 22:53:21 2013
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Name : ubuntu:0
UUID : 1b273efc:62f3bc36:4579f11d:15bbc75e
Events : 319386
Number Major Minor RaidDevice State
4 8 1 0 active sync /dev/sda1
5 8 17 1 active sync /dev/sdb1
3 8 33 2 active sync /dev/sdc1
mdadm --detail --scan & amp; & amp; & amp; & amp; mdadm --examine --scan
# mdadm --detail --scan
ARRAY /dev/md0 metadata=1.2 name=ubuntu:0 UUID=1b273efc:62f3bc36:4579f11d:15bbc75e
# mdadm --examine --scan
ARRAY /dev/md/0 metadata=1.2 UUID=1b273efc:62f3bc36:4579f11d:15bbc75e name=ubuntu:0
grub-probe -v /
# grub-probe -v /
grub-probe: info: cannot open `/boot/grub/device.map'.
grub-probe: info: Scanning for dmraid_nv RAID devices on disk hd0.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Scanning for dmraid_nv RAID devices on disk hd1.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Scanning for dmraid_nv RAID devices on disk hd2.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for dmraid_nv RAID devices on disk hd3.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: scanning hd0 for LVM.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: scanning hd1 for LVM.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: scanning hd2 for LVM.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: scanning hd3 for LVM.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd0.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd1.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd2.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd3.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd0.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd1.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Found array md/0 (mdraid1x).
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd2.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd3.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd0.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd0,msdos1.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd1.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd1,msdos1.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd2.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd2,msdos1.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd3.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd3,msdos2.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid09 RAID devices on disk hd3,msdos1.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd0.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd0,msdos1.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: Found array md/0 (mdraid1x).
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd1.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd1,msdos1.
grub-probe: info: the size of hd1 is 3907029168.
error: found two disks with the index 1 for RAID md/0.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd2.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd2,msdos1.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd3.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd3,msdos2.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Scanning for mdraid1x RAID devices on disk hd3,msdos1.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: scanning md/0 for LVM.
grub-probe: info: no LVM signature found.
grub-probe: info: scanning hd0 for LVM.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: scanning hd0,msdos1 for LVM.
grub-probe: info: the size of hd0 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: scanning hd1 for LVM.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: scanning hd1,msdos1 for LVM.
grub-probe: info: the size of hd1 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: scanning hd2 for LVM.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: scanning hd2,msdos1 for LVM.
grub-probe: info: the size of hd2 is 3907029168.
grub-probe: info: no LVM signature found.
grub-probe: info: scanning hd3 for LVM.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: no LVM signature found.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: scanning hd3,msdos2 for LVM.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: no LVM signature found.
grub-probe: info: scanning hd3,msdos1 for LVM.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: no LVM signature found.
grub-probe: info: /dev/sdd1 starts from 2048.
grub-probe: info: opening the device hd3.
grub-probe: info: the size of hd3 is 250069680.
grub-probe: info: Partition 0 starts from 2048.
grub-probe: info: opening hd3,msdos1.
grub-probe: info: the size of hd3 is 250069680.
ext2
/boot/grub/device.map
# cat /boot/grub/device.map
(hd0) /dev/sda
(hd1) /dev/sdb
(hd2) /dev/sdc
(hd3) /dev/sdd
1
задан Vangelis Tasoulas
22 July 2013 в 14:09
поделиться