Project Kemari in XenBits

Thanks to Ian Jackson, the Kemari repository is now open at xenbits. Send all questions to Yoshiaki Tamura tamura.yoshiaki@lab.ntt.co.jp.

You can clone the tree from the following address.

http://xenbits.xensource.com/ext/kemari/kemari-v1-unstable.hg

You can build the tree just like you usually build the unstable tree.  The tree works both on i386 and x86_64.  It follows the xen-unstable tree, and we’ll keep updating when there are chaneges to the mainline.  For more information how to use Kemari, please read the instruction at our website.

http://www.osrg.net/kemari/usage.html

For those who don’t want to prepare a SAN, Kemari can be used with DRBD which replicates a block device through network.  With DRBD, now you can play Kemari without a shared disk.  I use the following configuration for the drbd device for Kemari, and this should also work for live migration.

global {

}

common {

protocol C;

}

resource r0 {

syncer {

rate 1G;

}

net {

allow-two-primaries;

after-sb-0pri discard-zero-changes;

after-sb-1pri discard-secondary;

}

startup {

become-primary-on both;

}

on host0 {

device    /dev/drbd0;

disk      /dev/sdb1;

address   192.168.0.48:7789;

meta-disk internal;

}

on host1 {

device    /dev/drbd0;

disk      /dev/sdb1;

address   192.168.0.52:7789;

meta-disk internal;

}

}