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Posted to dev@cloudstack.apache.org by GitBox <gi...@apache.org> on 2023/01/09 14:48:22 UTC
[GitHub] [cloudstack-documentation] DaanHoogland commented on a diff in pull request #281: DELLEMC Networker B&R Plugin Documentation
DaanHoogland commented on code in PR #281:
URL: https://github.com/apache/cloudstack-documentation/pull/281#discussion_r1064721481
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source/adminguide/networker_plugin.rst:
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+.. 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.
+
+.. _DELL EMC Networker Backup and Recovery Plugin:
+
+DELL EMC Networker Backup and Recovery Plugin
+=============================================
+
+About the DELL EMC Networker Backup and Recovery Plugin
+---------------------------------------------------------
+
+Administrators must make sure that the following requirements and prerequisites are met in order for the plugin
+to work as expected.
+
+EMC Networker Server
+
+#. A fairly recent .rpm or .deb Linux distribution that is supported by DELL EMC Networker for the installed version.
+#. Network connectivity between the Cloudstack Management Servers in your zone and DELL EMC Networker Server
+#. Administration access to the DELL EMC Networker management consoles
+#. Unrestricted access to API port (running default at: 9090/tcp)
+#. A proper timezone set. Identical to the Hypervisors and Management server
+#. Proper DNS resolution of the Clients
+
+KVM Hypervisor(s)
+
+#. A BASH shell at minimum version 4.4.19
+#. DELL EMC Networker client must be installed and in running state
+#. Hypervisor must be associated with the DELL EMC Networker server as CLIENT
+#. DELL EMC Networker can connect and verify certificates to the Hyper-v Client
+#. A Hypervisor must be in UP and ENABLED state and resource state respectively in order to be able to get backups
+ for the VMS running.
+#. A proper timezone set. Identical to the EMC Networker Server and Management server
+#. Proper DNS resolution of the EMC Networker server
+
+Virtual Machines
+
+#. It is HIGHLY recommended to run qemu-guest-agent on the Machines you are planning to backup.
+#. There has been no testing regarding KVM Primary Storage snapshots and possible problems with EMC DELL Networker plugin
+#. In case you are using KVM Primary Storage snapshots, you have EMC Networker and you want to proceed with the
+ installation of this plugin proceed with extreme caution.
+
+General Concepts
+
+#. DELL EMC Networker POLICIES are presented as Backup Provider Offerings to Cloudstack.
+ At that level we can set the Protection Period (aka Expiration) to specify when backups
+ will expire. Restricted data zones can also be defined in POLICIES to create fine grain permissions.
+#. As per EMC Networker Glossary and design those POLICIES are not actually used. They act as a placeholder
+ for the backup offerings and the retention policies.
+#. DELL EMC Networker has no ability to initiate backup tasks for KVM Virtual Machines at the moment.
+ The implementation is based on manual save sets initiated by the Cloudstack Networker plugin.
+#. The tag -CSBKP- in the comment of the POLICY indicates that this policy is available to Cloudstack
+ Other POLICIES used in your infrastructure will not be visible inside Cloudstack. It is recommended to create
+ brand new POLICIES dedicated to Cloudstack and settings the Protection Periods to match the backup plan retention
+ you wish to enable for each of the offerings.
+#. For each KVM Cluster you have, a relevant dummy client must be created in the DELL EMC Networker. This is used as a
+ placeholder for being able to backup and restore your Virtual Machines from all hosts within the cluster.
+#. Cross cluster restores are indirectly supported by restoring to the original cluster and then migrating the Virtual
+ Machine to the destination cluster.
+#. Any manual KVM backup you initiate (from the hyper-v command line) will be registered in Cloudstack automatically.
+ You need to use the client scripts and pass the proper parameteres to do so.
+#. Any backup you expire/remove from the DELL EMC Networker side will be unregistered in Cloudstack automatically.
+
+Installing DELL EMC Networker Backup and Recovery Plugin
+--------------------------------------------------------
+
+The B&R Networker plugin has been designed and implemented taking in mind the particularities of the DELL EMC Networker
+backup suite. It has been developed and tested against 19.4.0.6 and the minimum supported version is 9.2.
+
+The installation and configuration of the DELL EMC Networker is out of scope and it is assumed that it has been properly
+performed in advance. Kindly make sure that DNS resolution, Timezones and system clocks are set/synced for KVM Hypervisors,
+Cloudstack Management Servers and DELL EMC Networker Server. Do not forget to perform your staging actions (if any)
+before the savesets expire.
+
+Depending on your topology, network bandwidth, backend storage speeds, number of customer VMs you should carefully plan,
+design and implement the Storage volumes, media pools. If you have multiple VMs that your customers want to be processed
+at the same time (e.g Friday night, end of business day in your timezone) this can easily overwhelm your resources since
+the backups are initiated outside DELL EMC Networker.
+
+A brief Outline of the prerequisite steps is provided.
+
+#. Install / Configure DELL EMC Networker Server (if you don't already have one running)
+#. Set timezone and enable ntp/chrony
+#. Set proper DNS Servers or alternatively add all KVM Hypervisors to /etc/hosts
+#. Install DELL EMC Networker client and extended client packages to all Hypervisors
+#. Add all KVM Hypervisors as Clients in the EMC Networker (Traditional Backup)
+#. Create a USER in EMC DELL Networker with privileges to create/delete backups
+
+
+Creating POLICIES on the Networker Side
+----------------------------------------
+
+#. In the DELL EMC Networker Management Console create the desired POLICIES including the -CSBKP- tag in the
+ comment section.
+
+ |BnR-Networker-Policy.jpg|
+
+#. After finishing with the POLICIES you will end up with something like this
+
+ |BnR-Networker-Policies.jpg|
+
+#. Create a dedicated Media Pool (recommended but not required).
+
+ |BnR-Networker-MediaPool-General.jpg|
+
+#. Set the configuration values according to your environment, equipment, needs and constraints.
+
+ |BnR-Networker-MediaPool-Configuration.jpg|
+
+#. In Selection Criteria tab you can select the device(s) associated with that Media Pool. A use of a deduplication
+ capable storage device (such as DataDomain) is recommended.
+
+#. Check your cluster name (e.g from cloud monkey).
+ Please note that cluster name case sensitivity matters.
+
+ |BnR-Networker-clustername.jpg|
+
+#. Create relevant DNS entries for all your KVM clusters in your nameservers or add it in the /etc/hosts of your
+ DELL EMC NETWORKER server. The IP addresses can be anything you want but must be present.
+
+#. Create a client representing the cluster on the EMC Networker Side
+
+ |BnR-Networker-Cluster-Client-General.jpg|
+ |BnR-Networker-Cluster-Client-Globals1.jpg|
+
+#. Include all the users and hypervisor hosts on the Global (2 of 2) page
+
+ |BnR-Networker-Cluster-Client-Globals2.jpg|
+
+#. Your final client configuration should have all KVM hosts and Clusters defined.
+
+ |BnR-Networker-Cluster-Clients-overview.jpg|
+
+
+Connecting CloudStack to DELL EMC Networker
+----------------------------------------------
+
+Before enabling DELL EMC Networker make sure that the user account Cloudstack uses to connect to your KVM Hypervisors
+can execute via SUDO and with no required password the following binary from EMC Networker:
+
+#. /usr/sbin/recover
+
+Also make sure that the user account Cloudstack uses to connect to your KVM Hypervisors is member of the libvirt group.
+
+Updating the global settings listed below will allow you to start the importing of the backup offerings to Cloudstack.
+
+Plug-in specific settings:
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+(all settings can be global or per-zone)
+
+.. cssclass:: table-striped table-bordered table-hover
+
+======================================== =============================================================================
+Configuration Description
+======================================== =============================================================================
+backup.plugin.networker.url DELL EMC Networker server URL. Default: https://localhost:9090/nwrestapi/v3
+backup.plugin.networker.username DELL EMC Networker server username. Default: administrator
+backup.plugin.networker.password DELL EMC Networker server password. Default: password
+backup.plugin.networker.pool DELL EMC Networker Media Pool. Default: Default
+backup.plugin.networker.validate.ssl Whether to validate API server (SSL/TLS) connection. Default: false
+backup.plugin.networker.request.timeout DELL EMC Networker API request timeout in seconds. Default: 300
+backup.plugin.networker.client.verbosity DELL EMC Networker Client verbosity: Default: false
+======================================== =============================================================================
+
+
+Client Logs and Verbosity
+-------------------------
+
+The default location for the logs is under /nsr/logs/cloudstack for each KVM Hypervisor. You should be familiar with that
+location from your usual Networker debugging. By setting the verbosity to true you will have comprehensive step by step
+list of all the actions and failures. For production use and when not debugging it is recommended to not use verbose logging.
+
+It is also recommended to add that location to your regular log rotating policy.
+
+
+.. |BnR-Networker-Policy.jpg| image:: /_static/images/BnR-Networker-Policy.jpg
+ :alt: Create Networker Policy.
+ :width: 350 px
+.. |BnR-Networker-Policies.jpg| image:: /_static/images/BnR-Networker-Policies.jpg
+ :alt: Networker Policies.
+ :width: 400 px
+.. |BnR-Networker-MediaPool-General.jpg| image:: /_static/images/BnR-Networker-MediaPool-General.jpg
+ :alt: Media Pool General Properties.
+ :width: 350 px
+.. |BnR-Networker-MediaPool-Configuration.jpg| image:: /_static/images/BnR-Networker-MediaPool-Configuration.jpg
+ :alt: Media Pool Configuration Properties.
+ :width: 350 px
+.. |BnR-Networker-clustername.jpg| image:: /_static/images/BnR-Networker-clustername.jpg
+ :alt: Cluster Client CMK.
+ :width: 400 px
+.. |BnR-Networker-Cluster-Client-General.jpg| image:: /_static/images/BnR-Networker-Cluster-Client-General.jpg
+ :alt: Cluster Client Creation.
+ :width: 350 px
+.. |BnR-Networker-Cluster-Client-Globals1.jpg| image:: /_static/images/BnR-Networker-Cluster-Client-Globals1.jpg
+ :alt: Cluster client Globals (1 of 2).
+ :width: 350 px
+.. |BnR-Networker-Cluster-Client-Globals2.jpg| image:: /_static/images/BnR-Networker-Cluster-Client-Globals2.jpg
+ :alt: Cluster client Globals (2 of 2).
+ :width: 350 px
+.. |BnR-Networker-Cluster-Clients-overview.jpg| image:: /_static/images/BnR-Networker-Cluster-Clients-overview.jpg
+ :alt: Cluster Clients Overview.
+ :width: 300 px
+
+
+
+
+
+
+
Review Comment:
```suggestion
```
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