Business objects microsoft cluster
Depending on the supported maximum storage size, it either takes full and differential backups 4-TB max storage servers or snapshot backups up to TB max storage servers. These backups allow you to restore a server at any point in time within your configured backup retention period. The default backup retention period is 7 days, which you can optionally configure up to 35 days. All backups are encrypted by using AES bit encryption. These backup files aren't user exposed and can't be exported.
You can use mysqldump to copy a database. For a database installed on an Azure VM , you can use standard backup tools or Backup for supported databases. Also, if the Azure services and tools don't meet your requirements, you can use supported third-party backup tools that provide an agent for backup and recovery of all SAP BOBI platform components.
High availability refers to a set of technologies that can minimize IT disruptions by providing business continuity of applications or services through redundant, fault-tolerant, or failover-protected components inside the same datacenter. In our case, the datacenters are within one Azure region.
The article High-availability architecture and scenarios for SAP provides insight on different high-availability techniques and recommendations offered on Azure for SAP applications, which complement the instructions in this section. The level of redundancy in the distributed architecture depends on the business-required recovery time objective RTO and recovery point objective RPO.
For example:. BI and web application servers don't need a specific high-availability solution, no matter whether they're installed separately or together. You can achieve high availability by redundancy, that is, by configuring multiple instances of BI and web servers in various Azure VMs. You can deploy the VMs in either availability sets or availability zones based on business-required RTO.
For deployment across availability zones, make sure all other components in the SAP BOBI platform are designed to be zone redundant too. Currently, not all Azure regions offer availability zones, so you need to adopt the deployment strategy based on your region. The Azure regions that offer zones are listed in Azure availability zones. The concepts of Azure availability zones and Azure availability sets are mutually exclusive. That means you can either deploy a pair or multiple VMs into a specific availability zone or an Azure availability set, but not both.
If you're using an Azure database as a solution for your CMS and audit database, a locally redundant high-availability framework is provided by default. Select the region and service inherent high-availability, redundancy, and resiliency capabilities without requiring you to configure any more components. Filestore refers to the disk directories where contents like reports, universes, and connections are stored.
It's being shared across all application servers of that system. For more information, see the Redundancy section for Azure Files.
Because the file share service isn't available in all regions, make sure you see the list of products available by region to find up-to-date information. But you'll also need to consider its high availability.
To distribute traffic across a web server, you can use Load Balancer or Application Gateway. The redundancy for either of the load balancers can be achieved based on the SKU you choose for deployment:.
The application gateway distributes the user request across web servers, which are distributed across availability zones. The web server forwards the request to management and processing server instances that are deployed in separate VMs across availability zones. Azure premium files with ZRS are attached via private link to management and storage tier VMs to access the contents like reports, universe, and connections.
The application accesses the CMS and audit database running on a zone-redundant instance of SQL Database, which replicates databases across multiple physical locations within an Azure region. You can tailor your deployment based on your business requirements by choosing different products or services for components like Load Balancer, File Repository Server, and DBMS. If availability zones aren't available in your selected region, you can deploy Azure VMs in availability sets.
Azure makes sure the VMs you place within an availability set run across multiple physical servers, compute racks, storage units, and network switches. If hardware or software failure occurs, only a subset of your VMs is affected and the overall solution stays operational. In this guide, we'll talk about the second option to implement a DR environment.
We won't cover an exhaustive list of all possible configuration options for DR. The entire DR strategy must be thoroughly tested. The strategy to achieve DR protection for each component is different, which is described in the following section.
On Azure, you can use Load Balancer or Application Gateway to load balance the traffic across web servers. To achieve DR for the load balancer services, you need to implement another load balancer or application gateway on a secondary region. It replicates the servers and all the attached managed disks to the secondary region so that when disasters and outages occur, you can easily fail over to your replicated environment and continue working.
Filestore is a disk directory where the actual files like reports and BI documents are stored. It's important that all the files in the filestore are in sync to the DR region. For more information, see Disaster recovery and storage account failover.
With this technology, only changed blocks are sent over the network in a compressed, efficient format. This proprietary technology minimizes the amount of data required to replicate across the regions, which saves data transfer costs.
It also shortens the replication time so that you can achieve a smaller RPO. For more information, see Requirements and considerations for using cross-region replication.
The CMS and audit database in the DR region must be a copy of the databases running in the primary region.
Option 1: Geo-redundant database backup restore. For a SQL database, the backup storage redundancy can be configured at the time of CMS and audit database creation, or it can be updated for an existing database. The changes made to an existing database apply to future backups only. You can restore a database on any SQL database in any Azure region from the most recent geo-replicated backups. Geo-restore uses a geo-replicated backup as its source. There's a delay between when a backup is taken and when it's geo-replicated to an Azure blob in a different region.
As a result, the restored database can be up to one hour behind the original database. Geo-restore is available for SQL databases configured with geo-redundant backup storage. Option 2: Geo-replication or an autofailover group. Geo-replication is a SQL Database feature that allows you to create readable secondary databases of individual databases on a server in the same or different region.
If geo-replication is enabled for the CMS and audit database, the application can initiate failover to a secondary database in a different Azure region. Geo-replication is enabled for individual databases, but to enable transparent and coordinated failover of multiple databases CMS and audit for an SAP BOBI application, it's advisable to use an autofailover group.
It provides the group semantics on top of active geo-replication, which means the entire SQL server all databases is replicated to another region instead of individual databases. Check the capabilities table that compares geo-replication with failover groups. So whether you use manual or automatic failover activation, failover switches all secondary databases in the group to primary.
After the database failover is completed, the DNS record is automatically updated to redirect the endpoints to the new region. After failover, the endpoint will remain the same. No manual intervention is required to connect the BI application to the SQL database on the secondary region.
For more information about this option, see Use autofailover groups to enable transparent and coordinated failover of multiple databases. Choose the appropriate option that works for your business:. Enable cross-region read replicas to enhance your business continuity and DR planning. You can replicate from a source server up to five replicas.
To learn more about read replicas, available regions, restrictions, and how to fail over, see Read replicas in Azure Database for MySQL. In this article. Returns the current name of a cluster or allows a new name to be assigned. Returns a ClusNetInterfaces collection providing access to the network interfaces in a cluster.
Returns a ClusNetworks collection providing access to the networks in a cluster. Returns a ClusNodes collection providing access to the nodes in a cluster. Sets or returns the maximum size of the log file maintained by the quorum resource.
Sets or returns the path to the log file maintained by the quorum resource. You must configure permissions so that the user account that will be used to create the failover cluster has Full Control permissions to the CNO. Membership in the Account Operators group is the minimum required to complete this step.
In the Select Users, Computers, or Groups dialog box, specify the user account or group that you want to grant permissions to, and then select OK.
Select the user account or group that you just added, and then next to Full control , select the Allow check box. Figure 2. Granting Full Control to the user or group that will create the cluster. After you complete this step, the user who you granted permissions to can create the failover cluster. However, if the CNO is located in an OU, the user cannot create clustered roles that require a client access point until you complete Step 3.
If the CNO is in the default Computers container, a cluster administrator can create up to 10 VCOs without any additional configuration. Membership in the Domain Admins group, or equivalent, is the minimum required to complete the steps for this option. Membership in the Account Operators group is the minimum required to complete the steps for this option.
In response to the warning message that says that you are about to add a disabled object, select OK. In the Permission Entry dialog box, make sure that the Type list is set to Allow , and the Applies to list is set to This object and all descendant objects. Under Permissions , select the Create Computer objects check box.
An administrator on the failover cluster can now create clustered roles with client access points, and bring the resources online. An administrator on the failover cluster can now create the clustered role with a client access point that matches the prestaged VCO name, and bring the resource online. Skip to main content.
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