Post by account_disabled on Mar 4, 2024 2:32:19 GMT -5
The functionality is available in the Standard edition without restrictions. Diagram of MS SQL Log Shipping technology Implementation of technologies in practice Although the mentioned methods have similar properties, their use in live traffic is quite different. In addition, some of them will not work properly on an inappropriately configured infrastructure. So what to watch out for? Operation without downtime with Always On Basic Availability Groups are ideal to deploy on a solution completely run in a single data center or city.As the basis of the infrastructure, it is advisable to choose clusters running in synchronous mode on Windows Server Failover Cluster (WSFC) technology.
We always set up two networks for such clusters in MasterDC to ensure USA Phone Number List high availability. It is also a type of architecture that is generally sensitive to throughput and requires latency of up to ms . At the same time, only works in "Full Log" mode of the database, during which all data changes are written to the log. This increases the demands on the capacity of hardware resources. Without regular log maintenance , storage can become full, causing the entire cluster to become inoperable. If the architecture meets the above parameters, the Always On technology is very reliable and, at the same time, the only one that allows maintenance of the servers in the cluster without any downtime.
Mirroring as an easier alternative to Always On The more modern Always On technology is gradually replacing Mirroring. Still, there are times when you'll appreciate Mirroring. For example, if the existing infrastructure uses an older version of SQL , Mirroring is the only option that will ensure high availability of the solution. Mirroring does not require WSFC clusters and does not have a transparent IP address. Its configuration is therefore simpler and has fewer technical dependencies. Even with Mirroring, however, extra capacity for writing logs must be taken into account.
We always set up two networks for such clusters in MasterDC to ensure USA Phone Number List high availability. It is also a type of architecture that is generally sensitive to throughput and requires latency of up to ms . At the same time, only works in "Full Log" mode of the database, during which all data changes are written to the log. This increases the demands on the capacity of hardware resources. Without regular log maintenance , storage can become full, causing the entire cluster to become inoperable. If the architecture meets the above parameters, the Always On technology is very reliable and, at the same time, the only one that allows maintenance of the servers in the cluster without any downtime.
Mirroring as an easier alternative to Always On The more modern Always On technology is gradually replacing Mirroring. Still, there are times when you'll appreciate Mirroring. For example, if the existing infrastructure uses an older version of SQL , Mirroring is the only option that will ensure high availability of the solution. Mirroring does not require WSFC clusters and does not have a transparent IP address. Its configuration is therefore simpler and has fewer technical dependencies. Even with Mirroring, however, extra capacity for writing logs must be taken into account.