Difference between revisions of "COLO - Coarse Grain Lock Stepping SLES"
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− | This page contaions detailed instractions on how to setup COLO on SLES11-SP3. |
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− | = Host installation = |
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− | On both primary and secondary hosts: |
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− | * Select "Xen Virtualization Host" when choosing host type. |
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− | * On package selection, please include build-essential packages like make, gcc and so on. |
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− | * After install the host OS, edit '/boot/grub/menu.lst', change the default booting option to Xen DOM0 kernel |
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− | * Uninstall xen-tools package: |
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− | <pre>yast2 --remove xen-tools</pre> |
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− | * Edit /etc/modprobe.d/unsupported-modules, add the following line: |
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− | <pre>allow_unsupported_modules 1</pre> |
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− | * Add the following package source by using yast2: |
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− | <pre>http://ftp5.gwdg.de/pub/opensuse/discontinued/distribution/11.3/repo/oss/suse/ |
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− | http://occonnect.dk/repo/$RCE/SLE11-SDK-SP3-Pool/sle-11-x86_64</pre> |
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− | * Install git |
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− | <pre>yast2 --install git</pre> |
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− | * Download files that needed for next steps: |
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− | <pre>git clone https://github.com/wencongyang/colo-files</pre> |
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− | * Install RPMs under colo-files/libnl3 |
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− | * compile and install act_mirred module: |
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− | <pre>#cd colo-files/act_mirred && make |
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− | #mkdir /lib/modules/3.0.76-0.11-xen/updates/ |
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− | #cp act_mirred.ko /lib/modules/3.0.76-0.11-xen/updates/ && depmod</pre> |
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− | * Download and [[Compiling_Xen|compile Xen]] |
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− | <pre>Checkout xen-colo source |
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− | #git clone https://github.com/wencongyang/xen |
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− | #cd xen && git checkout colo-v4-noheartbeat |
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− | Compile |
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− | #./configure |
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− | #make dist-xen; make dist-tools |
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− | Patch qemu and rebuild xen-tools |
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− | #cd tools/qemu-xen-dir/ |
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− | #git am /path-to/colo-files/patch_for_qemu/0001-Introduce-xen-load-devices-state.patch |
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− | #cd ../../; make dist-tools |
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− | Install xen and xen-tools |
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− | #make install-xen; make install-tools |
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− | #chkconfig xencommons on |
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− | #reboot |
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− | NOTE: There might be some missing dependance, the main missing packages are the following, please install these first: |
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− | flex,python-devel, gettext-tools, dev86, libuuid-devel, libopenssl-devel, libyajl-devel, glib2-devel, libpixman-1-0-devel</pre> |
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− | * Compile and install colo agent (only needed on primary host) |
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− | <pre>#git clone https://github.com/wencongyang/colo-agent |
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− | #git checkout experimental |
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− | #make |
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− | #cp *.ko /lib/modules/3.0.76-0.11-xen/updates/ && depmod</pre> |
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− | = Guest installation = |
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− | Note the following steps should be done on primary host. |
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− | * Needed settings in Guest config file: |
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− | <pre>xen_platform_pci=0</pre> |
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− | * Select 'Physical Machine' when choosing host type. |
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− | = Run COLO = |
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− | Note the following steps should be done on primary host. |
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− | * Copy the new installed guest image to secondary host. Note that the image should be put in the same directory as it's in primary host. |
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− | * Load essential kernel modules: |
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− | <pre>modprobe ifb numifbs=10 |
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− | modprobe sch_colo |
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− | modprobe sch_colo_ipv4 |
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− | modprobe sch_colo_arp |
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− | modprobe sch_colo_icmp |
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− | modprobe sch_colo_tcp |
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− | modprobe sch_colo_udp</pre> |
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− | * Modify the guest config file: |
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− | ** disk |
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− | <pre>disk = [ 'format=raw,devtype=disk,access=w,vdev=hda,backendtype=tap,filter=colo,filter-params=192.168.3.1:9000,target=/root/images/hvm/hvm_nopv/hvm.img' ]</pre> |
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− | ** nic |
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− | <pre>vif = [ 'mac=00:16:4f:00:00:11, bridge=br0, model=e1000, forwarddev=eth0' ]</pre> |
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− | * Start guest |
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− | * Run COLO |
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− | <pre>xl remus -c -u <domname> <secondary host IP></pre> |
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− | [[Category:High Availability]] |
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− | [[Category:Xen 4.5]] |