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Cloud DR Design Solution

Latest reply: May 31, 2022 08:49:46 172 1 2 0 0

Dear All,


Today we are going to learn about Cloud DR Design Solution.

 

General DR Design Solution


1

 

 

FusionCloud Active-Passive DR for Private Cloud

 

2

 

Built based on the OpenStack open architecture supporting evolution  preventing lockout. Supporting tenant DR service application  reducing the service provisioning period from one week to less than half an hour. Based on the storage replication technology  not occupying VM resources  supporting RPO = 0; zero impact on VM performance.

 

DR Network Design

FusionCloud private cloud DR requires interworking of three layers (external_api, external_om, and storage replication networks) of the production DC and disaster recovery DC.


external_api

OpenStacks of the product DC and disaster recovery DC share keystone authorization. Therefore, OpenStacks of the disaster recovery DC must access the external_api network where the keystone of the product DC is located through the Layer 3 network. ManageOne SCs of the product DC and disaster recovery DC use the external_api network address for DR replication. Therefore, Layer 3 interworking is required for this network address. BCManager eReplication is deployed in the disaster recovery DC, and needs to use the external_api network to access resources of the production DC through interworking of three layers.


external_om

Keystone databases of the product DC and disaster recovery DC use the external_om network address for DR replication. Therefore, interworking of three layers is required for this network address.


Storage replication network

If storage copies of the product DC and disaster recovery DC are located on the IP network, interworking of three layers is required between two DCs.


DR Network Plane Planning

 

3

 

DR Network Bandwidth Planning


4


DR Storage System Design(1/3)

 

5

 

DR Storage System Design(2/3)

 

6

 

DR Storage System Design(3/3)


7

 

Management Domain Design – Keystone DR Design


8

In the DR scenario, the keystone database must be backed up to the DR site, whereas the system databases (such as cinder and nova) do not need to be backed up to the DR site. Therefore, databases are split. Considering deployment of the local HA and remote DR, four physical nodes are needed for every node, among which two nodes are used to deploy the keystone database, and the other two nodes are used to deploy other system databases.


Active/standby redundancy of the keystone database is implemented through database replication between the production DC and the disaster recovery DC.


The external_om network plane must be used for replication of the keystone database.


The OpenStack management planes of the production DC and the disaster recovery DC share the keystone of the production DC.


Management Domain Design – SC DR Design

 

9

The SC adopts the VM deployment mode, and the local HA is used.  The ManageOne SC uses the external_api network address for DR replication.

 

Thanks,

Kashif Ali

 


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olive.zhao
Admin Created May 31, 2022 08:49:46

Thanks for your sharing!
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