mdadm

作者佚名技术来源 Linux系统浏览发布时间 2012-05-16

Partition table entries are not in disk order Command (m for help): t (更改分区类型) Partition number (1-10): 10 Hex code (type L to list codes): fd （分区类型为 Linux raid autodetect） Command (m for help): w （保存退出） # fdisk -l /dev/sda Disk /dev/sda: 81.9 GB, 81964302336 bytes 255 heads, 63 sectors/track, 9964 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 9964 80035798 5 Extended /dev/sda5 917 927 88326 7 HPFS/NTFS /dev/sda6 928 996 554211 b Win95 FAT32 /dev/sda7 997 1011 120456 7 HPFS/NTFS /dev/sda8 1040 9964 71690031 83 Linux /dev/sda9 1 916 7357707 83 Linux Partition table entries are not in disk order ＃ fdisk -l /dev/sdb Disk /dev/sdb: 81.9 GB, 81964302336 bytes 255 heads, 63 sectors/track, 9964 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb2 4501 9964 43889580 5 Extended /dev/sdb3 667 4500 30796605 83 Linux /dev/sdb4 658 666 72292 83 Linux /dev/sdb5 5114 5362 2000061 83 Linux /dev/sdb6 5751 5878 1028128 83 Linux /dev/sdb7 5721 5750 240943 83 Linux /dev/sdb8 5620 5720 811251 83 Linux /dev/sdb9 6261 9964 29752348 83 Linux /dev/sdb10 4501 4514 112423 fd Linux raid autodetect Partition table entries are not in disk order ＃modprobe raid1.ko mdadm: chunk size defaults to 64K ＃mdadm -C /dev/md0 --level=1 --raid-devices=2 /dev/sda10 /dev/sdb10 mdadm: /dev/sda10 appears to contain an ext2fs file system size=112320K mtime=Sat Jan 1 06:39:59 2000 mdadm: /dev/sdb10 appears to be part of a raid array: size=112320K ctime=Sat Jan 1 02:45:14 2000 Continue creating array? y mdadm: array /dev/md0 started. ＃ mkfs.ext3 /dev/md0 (格式化raid) mke2fs 1.37 (21-Mar-2005) Filesystem label= OS type: Linux Block size=1024 (log=0) Fragment size=1024 (log=0) 28112 inodes, 112320 blocks 5616 blocks (5.00%) reserved for the super user First data block=1 14 block groups 8192 blocks per group, 8192 fragments per group 2008 inodes per group Superblock backups stored . blocks: 8193, 24577, 40961, 57345, 73729 Writing inode tables: done Creating journal (4096 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 23 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. # mdadm -D /dev/md0 （查看raid信息） /dev/md0: Version : 00.90.01 Creation Time : Sat Jan 1 02:45:14 2000 Raid Level : raid1

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