Synnefo » snf-ganeti » ganeti-local

            <varlistentry>

              <term>disk_cache</term>

              <listitem>

                <simpara>Valid for the KVM hypervisor.</simpara>

                <simpara>The disk cache mode. It can be either

                <userinput>default</userinput> to not pass any cache

                option to KVM, or one of the KVM cache modes: none

                (for direct I/O), writethrough (to use the host cache

                but report completion to the guest only when the host

                has commited the changes to disk) or writeback (to use

                the host cache and report completion as soon as the

                data is in the host cache). Note that there are

                special considerations for the cache mode depending on

                version of KVM used and disk type (always raw file

                under Ganeti), please refer to the KVM documentation

                for more details.

                </simpara>

              </listitem>

            </varlistentry>