ts³11240333140³1version³13³1cache_oldmajor³10³1cache_oldauthor³10³1cache_diff_default_author³11³1revision³11³1tscreate³11240333140³1text_default³1ip³2193.35.132.149³2ts³21240333140³2version³21³2name³2text_default³2data³2summary³3*³3text³3== Current status ==
2x250GB SATA disks
/dev/sda - blank
/dev/sdb1 - / ext3 225G
/dev/sdb2 - extended
/dev/sdb5 - swap 6G
== Target ==
/dev/sda1 - md0 - 200M Boot mirrored /dev/sdb1
/dev/sda2 - md1 - 2G Swap mirrored /dev/sdb2
/dev/sda3 - md2 ~ 200G Data mirrored /dev/sdb3
== High Level Process ==
Create necessary partitions on /dev/sda, copy data over, reboot, setup necessary partitions on /dev/sdb, sync mirror.
== Detailed Process ==
* Install necessary stuff
apt-get install mdadm lvm2
* Insert the module to make the LVM tools work
modprobe dm-mod
* Wipe /dev/sda
* Create partitions
** Create /dev/sda1 of 200M for /boot
** Create /dev/sda2 of 2G for /swap
** Create /dev/sda3 of 200G for /data
Device Boot Start End Blocks Id System
/dev/sda1 1 200 1606468+ 83 Linux
/dev/sda2 201 2048 14844060 83 Linux
/dev/sda3 2049 30515 228661177+ 83 Linux
/dev/sda1 1 200 1606468+ fd Linux raid autodetect
/dev/sda2 201 2048 14844060 fd Linux raid autodetect
/dev/sda3 2049 30515 228661177+ fd Linux raid autodetect
* Create RAID parts
** Create md0 for /boot
$ sudo mdadm --create /dev/md0 --level 1 --raid-devices=2 /dev/sda1 missing
mdadm: /dev/sda1 appears to contain a reiserfs file system
size = 56862016K
Continue creating array? y
mdadm: array /dev/md0 started.
** Create md1 for swap
$ sudo mdadm --create /dev/md1 --level 1 --raid-devices=2 /dev/sda2 missing
mdadm: array /dev/md1 started.
** Create md2 for data
$ sudo mdadm --create /dev/md2 --level 1 --raid-devices=2 /dev/sda3 missing
mdadm: array /dev/md2 started.
* Display disk setup
$ cat /proc/mdstat
Personalities : [raid1]
md2 : active raid1 sda3[0]
228661056 blocks [2/1] [U_]
md1 : active raid1 sda2[0]
14843968 blocks [2/1] [U_]
md0 : active raid1 sda1[0]
1606400 blocks [2/1] [U_]
unused devices:
* Create boot and swap without LVM
** Create boot filesystem
$ sudo mkfs.ext3 /dev/md0
mke2fs 1.40-WIP (14-Nov-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
200928 inodes, 401600 blocks
20080 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=415236096
13 block groups
32768 blocks per group, 32768 fragments per group
15456 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 29 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
** Create swap
$ sudo mkswap /dev/md1
Setting up swapspace version 1, size = 15200219 kB
no label, UUID=5d0b63bb-8541-48f6-a97e-fb3eb32404b8
* Create data partition with LVM
** Prepare the partition for use with lvm
$ sudo pvcreate /dev/md2
Physical volume "/dev/md2" successfully created
** Create an LVM Volume Group
$ sudo vgcreate vg00_data /dev/md2
Volume group "vg00_data" successfully create
** Display the LVM Volume Group
$ sudo vgscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Reading all physical volumes. This may take a while...
Finding all volume groups
Finding volume group "vg00_data"
Found volume group "vg00_data" using metadata type lvm2
** Create an LVM Logical Volume
$ sudo lvcreate -L200G -nlv00_data vg00_data
Logical volume "lv00_data" created
** Display the LVM Logical Volume
$ sudo lvscan -v
Finding all logical volumes
ACTIVE '/dev/vg00_data/lv00_data' [200.00 GB] inherit
** Create filesystem
$ sudo mkfs.ext3 /dev/vg00_data/lv00_data
mke2fs 1.40-WIP (14-Nov-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
26214400 inodes, 52428800 blocks
2621440 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
1600 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 28 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
* Copy data over from sdb to sda
$ sudo telinit 1
mkdir /mnt/newroot
mkdir /mnt/newboot
mkdir /mnt/oldroot
mount /dev/sdb1 /mnt/oldroot
mount /dev/vg00_data/lv00_data /mnt/newroot
cp -p -r /mnt/oldroot/boot/* /mnt/newboot/
cp -p -r /mnt/oldroot/* /mnt/newroot
* Maintain /etc/fstab
* Reboot
³3newauthor³31³3minor³30³2username³2Alan Pope³2host³2193.35.132.149³2revision³21³2tscreate³21240333140³2id³24767³1cache_diff_default_major³11³1cache_diff_default_minor³11c1,177
< Describe the new page here.
---
> == Current status ==
>
> 2x250GB SATA disks
>
> /dev/sda - blank
>
> /dev/sdb1 - / ext3 225G
> /dev/sdb2 - extended
> /dev/sdb5 - swap 6G
>
> == Target ==
>
> /dev/sda1 - md0 - 200M Boot mirrored /dev/sdb1
> /dev/sda2 - md1 - 2G Swap mirrored /dev/sdb2
> /dev/sda3 - md2 ~ 200G Data mirrored /dev/sdb3
>
> == High Level Process ==
>
> Create necessary partitions on /dev/sda, copy data over, reboot, setup necessary partitions on /dev/sdb, sync mirror.
>
> == Detailed Process ==
>
> * Install necessary stuff
> apt-get install mdadm lvm2
>
> * Insert the module to make the LVM tools work
> modprobe dm-mod
>
> * Wipe /dev/sda
> * Create partitions
> ** Create /dev/sda1 of 200M for /boot
> ** Create /dev/sda2 of 2G for /swap
> ** Create /dev/sda3 of 200G for /data
>
> Device Boot Start End Blocks Id System
> /dev/sda1 1 200 1606468+ 83 Linux
> /dev/sda2 201 2048 14844060 83 Linux
> /dev/sda3 2049 30515 228661177+ 83 Linux
>
> /dev/sda1 1 200 1606468+ fd Linux raid autodetect
> /dev/sda2 201 2048 14844060 fd Linux raid autodetect
> /dev/sda3 2049 30515 228661177+ fd Linux raid autodetect
>
> * Create RAID parts
> ** Create md0 for /boot
> $ sudo mdadm --create /dev/md0 --level 1 --raid-devices=2 /dev/sda1 missing
> mdadm: /dev/sda1 appears to contain a reiserfs file system
> size = 56862016K
> Continue creating array? y
> mdadm: array /dev/md0 started.
> ** Create md1 for swap
> $ sudo mdadm --create /dev/md1 --level 1 --raid-devices=2 /dev/sda2 missing
> mdadm: array /dev/md1 started.
> ** Create md2 for data
> $ sudo mdadm --create /dev/md2 --level 1 --raid-devices=2 /dev/sda3 missing
> mdadm: array /dev/md2 started.
>
> * Display disk setup
>
> $ cat /proc/mdstat
> Personalities : [raid1]
> md2 : active raid1 sda3[0]
> 228661056 blocks [2/1] [U_]
>
> md1 : active raid1 sda2[0]
> 14843968 blocks [2/1] [U_]
>
> md0 : active raid1 sda1[0]
> 1606400 blocks [2/1] [U_]
>
> unused devices:
>
>
> * Create boot and swap without LVM
> ** Create boot filesystem
>
> $ sudo mkfs.ext3 /dev/md0
> mke2fs 1.40-WIP (14-Nov-2006)
> Filesystem label=
> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 200928 inodes, 401600 blocks
> 20080 blocks (5.00%) reserved for the super user
> First data block=0
> Maximum filesystem blocks=415236096
> 13 block groups
> 32768 blocks per group, 32768 fragments per group
> 15456 inodes per group
> Superblock backups stored on blocks:
> 32768, 98304, 163840, 229376, 294912
>
> Writing inode tables: done
> Creating journal (8192 blocks): done
> Writing superblocks and filesystem accounting information: done
>
> This filesystem will be automatically checked every 29 mounts or
> 180 days, whichever comes first. Use tune2fs -c or -i to override.
>
> ** Create swap
>
> $ sudo mkswap /dev/md1
> Setting up swapspace version 1, size = 15200219 kB
> no label, UUID=5d0b63bb-8541-48f6-a97e-fb3eb32404b8
>
>
> * Create data partition with LVM
>
> ** Prepare the partition for use with lvm
> $ sudo pvcreate /dev/md2
> Physical volume "/dev/md2" successfully created
>
>
> ** Create an LVM Volume Group
> $ sudo vgcreate vg00_data /dev/md2
> Volume group "vg00_data" successfully create
>
> ** Display the LVM Volume Group
>
> $ sudo vgscan -v
> Wiping cache of LVM-capable devices
> Wiping internal VG cache
> Reading all physical volumes. This may take a while...
> Finding all volume groups
> Finding volume group "vg00_data"
> Found volume group "vg00_data" using metadata type lvm2
>
> ** Create an LVM Logical Volume
> $ sudo lvcreate -L200G -nlv00_data vg00_data
> Logical volume "lv00_data" created
>
> ** Display the LVM Logical Volume
> $ sudo lvscan -v
> Finding all logical volumes
> ACTIVE '/dev/vg00_data/lv00_data' [200.00 GB] inherit
>
> ** Create filesystem
>
> $ sudo mkfs.ext3 /dev/vg00_data/lv00_data
> mke2fs 1.40-WIP (14-Nov-2006)
> Filesystem label=
> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 26214400 inodes, 52428800 blocks
> 2621440 blocks (5.00%) reserved for the super user
> First data block=0
> Maximum filesystem blocks=0
> 1600 block groups
> 32768 blocks per group, 32768 fragments per group
> 16384 inodes per group
> Superblock backups stored on blocks:
> 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
> 4096000, 7962624, 11239424, 20480000, 23887872
>
> Writing inode tables: done
> Creating journal (32768 blocks): done
> Writing superblocks and filesystem accounting information: done
>
> This filesystem will be automatically checked every 28 mounts or
> 180 days, whichever comes first. Use tune2fs -c or -i to override.
>
>
> * Copy data over from sdb to sda
>
> $ sudo telinit 1
> mkdir /mnt/newroot
> mkdir /mnt/newboot
> mkdir /mnt/oldroot
> mount /dev/sdb1 /mnt/oldroot
> mount /dev/vg00_data/lv00_data /mnt/newroot
> cp -p -r /mnt/oldroot/boot/* /mnt/newboot/
> cp -p -r /mnt/oldroot/* /mnt/newroot
>
> * Maintain /etc/fstab
>
> * Reboot