SHOW:
|
|
- or go back to the newest paste.
| 1 | - | Instructions for switching to RAID 1 for XenServer 6.0 with GPT |
| 1 | + | Instructions for switching to RAID 1 for XenServer 6.1 with GPT |
| 2 | --------------------------------------------------------------- | |
| 3 | ||
| 4 | Check /dev/sda partition table | |
| 5 | # gdisk -l /dev/sda | |
| 6 | (...) | |
| 7 | Number Start (sector) End (sector) Size Code Name | |
| 8 | 1 2048 8388641 4.0 GiB 0700 | |
| 9 | 2 8390656 16777249 4.0 GiB 0700 | |
| 10 | 3 16779264 1953525134 923.5 GiB 8E00 | |
| 11 | ||
| 12 | ||
| 13 | Check /dev/sdb partition table | |
| 14 | # gdisk -l /dev/sdb | |
| 15 | ||
| 16 | ||
| 17 | Create RAID partitions on /dev/sdb | |
| 18 | # gdisk /dev/sdb | |
| 19 | ||
| 20 | ||
| 21 | Replicate the partition table sectors. Choose fd00 as code for partition type. | |
| 22 | ||
| 23 | The result should look something like this: | |
| 24 | Number Start (sector) End (sector) Size Code Name | |
| 25 | 1 2048 8388641 4.0 GiB FD00 Linux RAID | |
| 26 | 2 8390656 16777249 4.0 GiB FD00 Linux RAID | |
| 27 | 3 16779264 1953525134 923.5 GiB FD00 Linux RAID | |
| 28 | ||
| 29 | ||
| 30 | Create MD devices | |
| 31 | # mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 missing | |
| 32 | # mdadm --create /dev/md1 --level=1 --raid-devices=2 /dev/sdb2 missing | |
| 33 | # mdadm --create /dev/md2 --level=1 --raid-devices=2 /dev/sdb3 missing | |
| 34 | ||
| 35 | ||
| 36 | Copy Store Manager Data to RAID | |
| 37 | # pvcreate /dev/md2 | |
| 38 | # vgextend VG_<TAB> /dev/md2 | |
| 39 | # pvmove /dev/sda3 /dev/md2 | |
| 40 | ||
| 41 | ||
| 42 | Remove /dev/sda3 from the SR volume group | |
| 43 | # vgreduce VG_<TAB> /dev/sda3 | |
| 44 | # pvremove /dev/sda3 | |
| 45 | ||
| 46 | ||
| 47 | Mount /dev/md0 and copy the filesystem to it | |
| 48 | # mkfs.ext3 /dev/md0 | |
| 49 | # mount /dev/md0 /mnt | |
| 50 | # cd / | |
| 51 | # cp -axv . /mnt | |
| 52 | ||
| 53 | ||
| 54 | Modify /mnt/etc/fstab and change the root= parameter to /dev/md0. (Do NOT include the LABEL=) | |
| 55 | ||
| 56 | ||
| 57 | Create a new boot image and uncompress it: | |
| 58 | # mkdir /mnt/root/initrd-raid | |
| 59 | # mkinitrd -v --fstab=/mnt/etc/fstab /mnt/root/initrd-raid/initrd-`uname -r`-raid.img `uname -r` | |
| 60 | # cd /mnt/root/initrd-raid | |
| 61 | # zcat initrd-`uname -r`-raid.img | cpio -i | |
| 62 | ||
| 63 | ||
| 64 | Edit 'init' and insert the below test after 'raidautorun /dev/md0': | |
| 65 | raidautorun /dev/md1 | |
| 66 | raidautorun /dev/md2 | |
| 67 | ||
| 68 | ||
| 69 | Copy the new ramdisk to the /mnt/boot folder and modify boot menu | |
| 70 | # find . -print | cpio -o -Hnewc | gzip -c > /mnt/boot/initrd-`uname -r`-raid.img | |
| 71 | # rm /mnt/boot/initrd-2.6-xen.img | |
| 72 | rm: remove symbolic link `/mnt/boot/initrd-2.6-xen.img’? y | |
| 73 | # ln -s initrd-`uname -r`-raid.img /mnt/boot/initrd-2.6-xen.img | |
| 74 | # vi /mnt/boot/extlinux.conf | |
| 75 | Replace "root=LABEL=root-xyz" by "root=/dev/md0" in all menu entries. | |
| 76 | ||
| 77 | ||
| 78 | Set up MBR for GPT on /dev/sdb | |
| 79 | # cat /mnt/usr/share/syslinux/gptmbr.bin > /dev/sdb | |
| 80 | # cd /mnt | |
| 81 | # extlinux --raid -i boot/ | |
| 82 | ||
| 83 | ||
| 84 | Unmount /dev/md0 | |
| 85 | # cd | |
| 86 | # umount /dev/md0 | |
| 87 | # sync | |
| 88 | ||
| 89 | ||
| 90 | Make sure the bootable flag is set on the partitions | |
| 91 | # sgdisk /dev/sda --attributes=1:set:2 | |
| 92 | # sgdisk /dev/sdb --attributes=1:set:2 | |
| 93 | ||
| 94 | ||
| 95 | Reboot (IMPORTANT: Set your server to boot from the SECONDARY HDD before booting!) | |
| 96 | # reboot | |
| 97 | ||
| 98 | ||
| 99 | After the reboot is (hopefully) complete, it's time to switch /dev/sda's partitions to RAID | |
| 100 | # gdisk /dev/sda | |
| 101 | Press 't' select partition number and type in fd00. | |
| 102 | Repeat for all your partitions. Then 'w' to write changes. | |
| 103 | Your partition table should look something like this: | |
| 104 | ||
| 105 | (...) | |
| 106 | Number Start (sector) End (sector) Size Code Name | |
| 107 | 1 2048 8388641 4.0 GiB FD00 | |
| 108 | 2 8390656 16777249 4.0 GiB FD00 | |
| 109 | 3 16779264 1953525134 923.5 GiB FD00 | |
| 110 | ||
| 111 | ||
| 112 | You are now ready to add these partitions into the RAID arrays | |
| 113 | # mdadm -a /dev/md0 /dev/sda1 | |
| 114 | mdadm: added /dev/sda1 | |
| 115 | # mdadm -a /dev/md1 /dev/sda2 | |
| 116 | mdadm: added /dev/sda2 | |
| 117 | # mdadm -a /dev/md2 /dev/sda3 | |
| 118 | mdadm: added /dev/sda3 | |
| 119 | ||
| 120 | ||
| 121 | To check how the RAID sync is going look at: | |
| 122 | # cat /proc/mdstat | |
| 123 | ||
| 124 | ||
| 125 | When it's done on all three arrays, copy the RAID setup to /etc/mdadm.conf | |
| 126 | # mdadm --detail --scan >> /etc/mdadm.conf | |
| 127 | ||
| 128 | Finally restore the Volume Group | |
| 129 | - | You should now have a fully functional RAID 1 XenServer 6.0 Setup! |
| 129 | + | # cd /etc/lvm/backup |
| 130 | - | |
| 130 | + | # vgcfgrestore --file VG_<TAB> VG_<TAB> |
| 131 | ||
| 132 | You should now have a fully functional RAID 1 XenServer 6.1 Setup! |
