fixing licenses for o doc files

This commit is contained in:
Joe Brockmeier 2012-08-10 23:05:24 -04:00 committed by David Nalley
parent 0307effcfa
commit c8f3fc4558
2 changed files with 46 additions and 8 deletions

View File

@ -1,15 +1,34 @@
<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "file:///C:/Program%20Files%20(x86)/Publican/DocBook_DTD/docbookx.dtd" [
<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
%BOOK_ENTITIES;
]>
<!-- Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<section id="ongoing-configuration-of-external-firewalls-loadbalancer">
<title>Ongoing Configuration of External Firewalls and Load Balancers</title>
<para>Additional user actions (e.g. setting a port forward) will cause further programming of the firewall and load balancer. A user may request additional public IP addresses and forward traffic received at these IPs to specific VMs. This is accomplished by enabling static NAT for a public IP address, assigning the IP to a VM, and specifying a set of protocols and port ranges to open. When a static NAT rule is created, CloudPlatform programs the zone's external firewall with the following objects:</para>
<para>Additional user actions (e.g. setting a port forward) will cause further programming of the firewall and load balancer. A user may request additional public IP addresses and forward traffic received at these IPs to specific VMs. This is accomplished by enabling static NAT for a public IP address, assigning the IP to a VM, and specifying a set of protocols and port ranges to open. When a static NAT rule is created, &PRODUCT; programs the zone's external firewall with the following objects:</para>
<itemizedlist>
<listitem><para>A static NAT rule that maps the public IP address to the private IP address of a VM.</para></listitem>
<listitem><para>A security policy that allows traffic within the set of protocols and port ranges that are specified.</para></listitem>
<listitem><para>A firewall filter counter that measures the number of bytes of incoming traffic to the public IP.</para></listitem>
</itemizedlist>
<para>The number of incoming and outgoing bytes through source NAT, static NAT, and load balancing rules is measured and saved on each external element. This data is collected on a regular basis and stored in the CloudPlatform database.</para>
<para>The number of incoming and outgoing bytes through source NAT, static NAT, and load balancing rules is measured and saved on each external element. This data is collected on a regular basis and stored in the &PRODUCT; database.</para>
</section>

View File

@ -1,12 +1,31 @@
<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "file:///C:/Program%20Files%20(x86)/Publican/DocBook_DTD/docbookx.dtd" [
<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
%BOOK_ENTITIES;
]>
<!-- Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<section id="over-provisioning-service-offering-limits">
<title>Over-Provisioning and Service Offering Limits</title>
<para>CloudPlatform performs CPU over-provisioning based on an over-provisioning ratio configured by the administrator. This is defined by the cpu.overprovisioning.factor global configuration variable.</para>
<para>CloudPlatform performs CPU over-provisioning based on an over-provisioning ratio configured by the administrator. This is defined by the cpu.overprovisioning.factor global configuration variable</para>
<para>&PRODUCT; performs CPU over-provisioning based on an over-provisioning ratio configured by the administrator. This is defined by the cpu.overprovisioning.factor global configuration variable.</para>
<para>&PRODUCT; performs CPU over-provisioning based on an over-provisioning ratio configured by the administrator. This is defined by the cpu.overprovisioning.factor global configuration variable</para>
<para>Service offerings limits (e.g. 1 GHz, 1 core) are strictly enforced for core count. For example, a guest with a service offering of one core will have only one core available to it regardless of other activity on the Host. </para>
<para>Service offering limits for gigahertz are enforced only in the presence of contention for CPU resources. For example, suppose that a guest was created with a service offering of 1 GHz on a Host that has 2 GHz cores, and that guest is the only guest running on the Host. The guest will have the full 2 GHz available to it. When multiple guests are attempting to use the CPU a weighting factor is used to schedule CPU resources. The weight is based on the clock speed in the service offering. Guests receive a CPU allocation that is proportionate to the GHz in the service offering. For example, a guest created from a 2 GHz service offering will receive twice the CPU allocation as a guest created from a 1 GHz service offering. CloudPlatform does not perform memory over-provisioning.</para>
</section>
<para>Service offering limits for gigahertz are enforced only in the presence of contention for CPU resources. For example, suppose that a guest was created with a service offering of 1 GHz on a Host that has 2 GHz cores, and that guest is the only guest running on the Host. The guest will have the full 2 GHz available to it. When multiple guests are attempting to use the CPU a weighting factor is used to schedule CPU resources. The weight is based on the clock speed in the service offering. Guests receive a CPU allocation that is proportionate to the GHz in the service offering. For example, a guest created from a 2 GHz service offering will receive twice the CPU allocation as a guest created from a 1 GHz service offering. &PRODUCT; does not perform memory over-provisioning.</para>
</section>