{"id":533,"date":"2008-02-16T17:17:03","date_gmt":"2008-02-16T09:17:03","guid":{"rendered":"http:\/\/blog.smallken.ink\/2008\/02\/16\/linux\/533.html"},"modified":"2008-02-16T17:17:03","modified_gmt":"2008-02-16T09:17:03","slug":"%e4%b8%8d%e9%87%8d%e7%81%8c%e7%b3%bb%e7%b5%b1%e4%b8%8b%e5%af%a6%e4%bd%9c-raid1-for-fedora-8-linux","status":"publish","type":"post","link":"https:\/\/blog.smallken.site\/?p=533","title":{"rendered":"\u4e0d\u91cd\u704c\u7cfb\u7d71\u4e0b\u5be6\u4f5c RAID1 for Fedora 8 Linux"},"content":{"rendered":"

\u4e00\u822c\u7cfb\u8981\u505aRAID1\u6642\u5728\u704c\u7cfb\u7d71\u6642\u5c31\u6703\u898f\u5283\u597d\uff0c\u4f46\u662f\u5982\u679c\u6a5f\u5668\u5df2\u7d93\u662f\u5728\u8dd1\u7684\u5462?<\/p>\n

\u5b89\u88dd\u8a2d\u5b9aRAID\u91cd\u8981\u7684\u5957\u4ef6\uff0c\u5982\u679c\u6c92\u6709\u5b89\u88dd\u904e\uff0c\u8981\u91cd\u958b\u6a5f\u904e\u624d\u80fd\u7e7c\u7e8c\u8a2d\u5b9aRAID
# yum install mkinitrd mdadm
# reboot<\/p>\n

\u9996\u5148\u8981\u6e96\u5099\u5169\u9846\u5927\u5c0f\u4e00\u6a23\u7684\u5169\u9846\u786c\u789f\uff0c\u5148\u5728\u7b2c\u4e00\u9846\u786c\u789f \/dev\/sda \u4e0a\u5b89\u88dd\u597d\u7cfb\u7d71\uff0c\u7b2c\u4e8c\u9846\u786c\u789f \/dev\/sdb \u5247\u9084\u662f\u5b8c\u5168\u9084\u662f\u7a7a\u767d\u7684\u786c\u789f<\/p>\n

\u7b2c\u4e00\u9846\u786c\u789f \/dev\/sda \u7684partition\u5206\u5272\u8cc7\u8a0a\u5982\u4e0b
# fdisk -l \/dev\/sda
Disk \/dev\/sda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors\/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0002c3a7 <\/p>\n

   Device Boot      Start         End      Blocks   Id  System
\/dev\/sda1   *           1          25      200781   83  Linux
\/dev\/sda2              26          90      522112+  82  Linux swap \/ Solaris
\/dev\/sda3              91        1044     7663005   83  Linux <\/p>\n

\u628a \/dev\/sda \u7684\u5206\u5272\u8cc7\u8a0a\u5b8c\u6574\u5730 COPY \u5230 \/dev\/sdb
# sfdisk -d \/dev\/sda | sfdisk \/dev\/sdb
Successfully wrote the new partition table…<\/p>\n

\u73fe\u5728\u7b2c\u4e8c\u9846\u786c\u789f \/dev\/sdb \u7684partition \u5206\u5272\u8cc7\u8a0a\u8207\u7b2c\u4e00\u9846\u786c\u789f \/dev\/sda \u5df2\u7d93\u4e00\u6a21\u4e00\u6a23\u4e86<\/p>\n

<\/p>\n

# fdisk -l \/dev\/sdb
Disk \/dev\/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors\/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000de9c4 <\/p>\n

   Device Boot      Start         End      Blocks   Id  System
\/dev\/sdb1   *           1          25      200781   83  Linux
\/dev\/sdb2              26          90      522112+  82  Linux swap \/ Solaris
\/dev\/sdb3              91        1044     7663005   83  Linux<\/p>\n

# fdisk \/dev\/sdb<\/p>\n

Command (m for help): m <\/font>\u2190 \u5217\u51fa\u529f\u80fd\u6e05\u55ae
<\/font>Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition’s system id
   u   change display\/entry units
   v   verify the partition table
   w   write table to disk and exit
   x   extra functionality (experts only) <\/p>\n

Command (m for help): t <\/font>
<\/font>Partition number (1-4): 1<\/font>
Hex code (type L to list codes): L
<\/font>0  Empty           1e  Hidden W95 FAT1 80  Old Minix       be  Solaris boot
.
.
.
<\/font>17  Hidden HPFS\/NTF 64  Novell Netware  b7  BSDI fs         fd  Linux raid auto<\/strong>
18  AST SmartSleep  65  Novell Netware  b8  BSDI swap       fe  LANstep
1b  Hidden W95 FAT3 70  DiskSecure Mult bb  Boot Wizard hid ff  BBT
1c  Hidden W95 FAT3 75  PC\/IX
Hex code (type L to list codes): fd <\/font>\u2190 \u8b8a\u66f4\u6210\u70ba Linux raid autodetect \u5c6c\u6027<\/font>Command (m for help): t
<\/font>Partition number (1-4): 2
<\/font>Hex code (type L to list codes):fd <\/font>\u2190 \u8b8a\u66f4\u6210\u70ba Linux raid autodetect \u5c6c\u6027
<\/font>Command (m for help): t
<\/font>Partition number (1-4): 3
<\/font>Hex code (type L to list codes):  fd <\/font>\u2190 \u8b8a\u66f4\u6210\u70ba Linux raid autodetect \u5c6c\u6027
<\/font>Command (m for help): w<\/font> \u2190 \u5132\u5b58<\/font><\/p>\n

\u7522\u751f \/dev\/md0,\/dev\/md1,\/dev\/md2 \u9019\u4e09\u500bRAID1\u7684\u865b\u64ec\u786c\u789f
# mdadm –create \/dev\/md0 –level=1 –raid-disks=2 missing \/dev\/sdb1
# mdadm –create \/dev\/md1 –level=1 –raid-disks=2 missing \/dev\/sdb2
# mdadm –create \/dev\/md2 –level=1 –raid-disks=2 missing \/dev\/sdb3<\/font><\/p>\n

\u78ba\u8a8d\u4e00\u4e0bRAID\u90fd\u6709\u88ab\u5efa\u7acb\u8d77\u4f86
# cat \/proc\/mdstat
Personalities : [raid1]
md2 : active raid1 sdb3[1]
      7662912 blocks [2\/1] [_U]
md1 : active raid1 sdb2[1]
      522048 blocks [2\/1] [_U]
md0 : active raid1 sdb1[1]
      200704 blocks [2\/1] [_U]
unused devices: <none><\/p>\n

\u683c\u5f0f\u5316\/dev\/md0, \/dev\/md1, \/dev\/md2
# mkfs.ext3 \/dev\/md0
# mkswap \/dev\/md1
# mkfs.ext3 \/dev\/md2<\/p>\n

\u7522\u751f\u8a2d\u5b9a\u6a94\u5167\u5bb9\u76f4\u63a5\u5b58\u6210 \/etc\/mdadm.conf
# mdadm –examine –scan > \/etc\/mdadm.conf<\/p>\n

\u63a5\u8457\u6211\u5011\u8981\u6e2c\u8a66\u4e00\u4e0b\uff0c\/dev\/md0\u8ddf\/dev\/md2\u5230\u5e95\u53ef\u4e0d\u53ef\u4ee5mount\u8d77\u4f86?
# mkdir \/mnt\/md0
# mkdir \/mnt\/md2
# mount \/dev\/md0 \/mnt\/md0
# mount \/dev\/md2 \/mnt\/md2<\/p>\n

\u67e5\u770b\u6240\u6709\u88abmount\u8d77\u4f86\u7684\u8cc7\u8a0a
# mount
.
.
.
\/dev\/md0 on \/mnt\/md0 type ext3 (rw)
\/dev\/md2 on \/mnt\/md2 type ext3 (rw)<\/p>\n

\u4fee\u6539 \/etc\/fstab
# vi \/etc\/fstab
\/dev\/md2<\/font>                \/                       ext3    defaults        1 1
\/dev\/md0<\/font>                \/boot                   ext3    defaults        1 2
tmpfs                   \/dev\/shm                tmpfs   defaults        0 0
devpts                  \/dev\/pts                devpts  gid=5,mode=620  0 0
sysfs                   \/sys                    sysfs   defaults        0 0
proc                    \/proc                   proc    defaults        0 0
\/dev\/md1<\/font>                 swap<\/p>\n

# vi \/etc\/mtab
\/dev\/md2<\/font>  \/ ext3 rw 0 0
proc \/proc proc rw 0 0
sysfs \/sys sysfs rw 0 0
devpts \/dev\/pts devpts rw,gid=5,mode=620 0 0
\/dev\/md0<\/font>  \/boot ext3 rw 0 0
tmpfs \/dev\/shm tmpfs rw 0 0
none \/proc\/sys\/fs\/binfmt_misc binfmt_misc rw 0 0
sunrpc \/var\/lib\/nfs\/rpc_pipefs rpc_pipefs rw 0 0<\/p>\n

# vi \/boot\/grub\/menu.lst
default=0
fallback=1
<\/font>timeout=5
splashimage=(hd0,0)\/grub\/splash.xpm.gz
hiddenmenu
title Fedora (2.6.23.1-42.fc8)
        root (hd1<\/font>,0)
        kernel \/vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=\/ <\/font>rhgb quiet
        initrd \/initrd-2.6.23.1-42.fc8.img
title Fedora (2.6.23.1-42.fc8)
        root (hd0,0)
        kernel \/vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=\/ rhgb quiet
        initrd \/initrd-2.6.23.1-42.fc8.img<\/font><\/p>\n

\u5099\u4efdinitrd
# mv \/boot\/initrd-`uname -r`.img \/boot\/initrd-`uname -r`.img_orig<\/p>\n

\u91cd\u65b0\u7522\u751f initrd
# mkinitrd \/boot\/initrd-`uname -r`.img `uname -r`<\/p>\n

\u786c\u789f\u8cc7\u6599\u5c0d\u62f7
# cp -dpRx \/ \/mnt\/md2
# cd \/boot
# cp -dpRx . \/mnt\/md0<\/p>\n

# grub
grub> root (hd0,0)
Filesystem type is ext2fs, partition type 0x83
grub> setup (hd0)
grub> root (hd1,0)
Filesystem type is ext2fs, partition type 0xfd
grub> setup (hd1)
grub> quit<\/p>\n

# reboo<\/p>\n

\u91cd\u65b0\u958b\u6a5f\uff0c\u9078\u7528\u7b2c\u4e8c\u500b\u958b\u6a5f\u9078\u55ae<\/p>\n

\u6210\u529f\u958b\u6a5f\u5f8c\uff0c\u78ba\u8a8d\u4e00\u4e0b\u74b0\u5883
# df -h
\u6a94\u6848\u7cfb\u7d71              \u5bb9\u91cf  \u5df2\u7528 \u53ef\u7528 \u5df2\u7528% \u639b\u8f09\u9ede
\/dev\/md2              7.1G  2.5G  4.3G  37% \/
\/dev\/md0              190M   15M  166M   9% \/boot
tmpfs                 125M     0  125M   0% \/dev\/shm
# cat \/proc\/mdstat
md0 : active raid1 sdb1[1]
      200704 blocks [2\/1] [_U] <\/p>\n

md1 : active raid1 sdb2[1]
      522048 blocks [2\/1] [_U] <\/p>\n

md2 : active raid1 sdb3[1]
      7662912 blocks [2\/1] [_U] <\/p>\n

unused devices: <none> <\/p>\n

\u6bd4\u7167\u4e4b\u524d \/dev\/sdb \u7684\u52d5\u4f5c\uff0c\u4fee\u6539\u6210 Linux raid autodetect
# fdisk \/dev\/sda
Command (m for help): t<\/font>
Partition number (1-4): 1
<\/font>Hex code (type L to list codes): fd
<\/font>Changed system type of partition 1 to fd (Linux raid autodetect) <\/p>\n

Command (m for help): t
<\/font>Partition number (1-4): 2
<\/font>Hex code (type L to list codes): fd
<\/font>Changed system type of partition 2 to fd (Linux raid autodetect) <\/p>\n

Command (m for help): t
<\/font>Partition number (1-4): 3
<\/font>Hex code (type L to list codes): fd
<\/font>Changed system type of partition 3 to fd (Linux raid autodetect) <\/p>\n

Command (m for help): w
<\/font>The partition table has been altered! <\/p>\n

\u518d\u4f9d\u4f9d\u5c073\u500bpartition\u52a0\u5165RAID\u4e2d
# mdadm –add \/dev\/md0 \/dev\/sda1
# mdadm –add \/dev\/md1 \/dev\/sda2
# mdadm –add \/dev\/md2 \/dev\/sda3<\/p>\n

# cat \/proc\/mdstat<\/p>\n

# mdadm –examine –scan > \/etc\/mdadm.conf<\/p>\n

# vi \/boot\/grub\/menu.lst
default=0
fallback=1
timeout=5
splashimage=(hd0,0)\/grub\/splash.xpm.gz
hiddenmenu
title Fedora (2.6.23.1-42.fc8)
        root (hd0,<\/font>0)
        kernel \/vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=\/ <\/font>rhgb quiet
        initrd \/initrd-2.6.23.1-42.fc8.img
title Fedora (2.6.23.1-42.fc8)
        root (hd1<\/font>,0)
        kernel \/vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=\/ <\/font>rhgb quiet
        initrd \/initrd-2.6.23.1-42.fc8.img <\/p>\n

\u5099\u4efd initrd
|# mv \/boot\/initrd-`uname -r`.img \/boot\/initrd-`uname -r`.img_orig2<\/p>\n

\u91cd\u65b0\u7522\u751f inirtd
# mkinitrd \/boot\/initrd-`uname -r`.img `uname -r`<\/p>\n

# reboot<\/p>\n

\u6e2c\u8a66<\/p>\n

\u624b\u52d5\u8b93\u786c\u789f\u5931\u6548
# mdadm –manage \/dev\/md0 –fail \/dev\/sdb1
\u79fb\u9664\u52a0\u5165RAID
# mdadm –manage \/dev\/md0 –remove \/dev\/sdb1<\/p>\n

\u52a0\u5165RAID
# mdadm -a \/dev\/md0 \/dev\/sdb1<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u822c\u7cfb\u8981\u505aRAID1\u6642\u5728\u704c\u7cfb\u7d71\u6642\u5c31\u6703\u898f\u5283\u597d\uff0c\u4f46\u662f\u5982\u679c\u6a5f\u5668\u5df2\u7d93\u662f\u5728\u8dd1\u7684\u5462? \u5b89\u88dd\u8a2d\u5b9aRAID\u91cd\u8981\u7684\u5957\u4ef6\uff0c\u5982\u679c\u6c92\u6709…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-533","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/blog.smallken.site\/index.php?rest_route=\/wp\/v2\/posts\/533","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.smallken.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.smallken.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.smallken.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.smallken.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=533"}],"version-history":[{"count":0,"href":"https:\/\/blog.smallken.site\/index.php?rest_route=\/wp\/v2\/posts\/533\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.smallken.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.smallken.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.smallken.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}