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What are the disavantages of oracle database?
The lag time allows for the loss of database of the standby database (the standby database is only as good as the last log applied there)There is only one failover possible (you can't fail back)No transparent application failover (jobs/queries would have to be restarted on the standby database)Manual reconfiguration of the standby database for certain eventsKey length (string) can exceed the maximumIt's pretty good for business solutions.
Log shippindg in sql server?
Log shipping is one of the failover solutions offered by SQL Server 2000. In this context, failovermeans substituting primary server with a backup (sometimes also referred to as standby) server if the primary hardware becomes unusable. Failover solutions can also be used to provide close to 100% uptime-during primary database or server maintenance and during software upgrades you could use the standby server to continue serving your customers. Failover solutions can be automatic or manual. With automatic failover, the backup server detects when the primary server is not available and takes over without any intervention from the database administrator. An example of an automatic failover solution is clustering. With manual failover, the database administrator (DBA) has to perform some steps to bring the standby server online. In SQL Server 2000, log shipping is a form of manual failover.
What is the difference between database mirroring and failover cluster?
. Failover Cluster protects the instance, while DB Mirroring protects one or more DBs. 2. failover clustering required dedicated H/W, while DB Mirroring is not required dedicated h/w
Which failover cluster model does not use a witness disk?
The Majority Node Set Cluster Network as a Failover cluster model does not use a witness disk.
What is an automatic DNS Failover Service used for?
An automatic DNS Failover Service is used for to send traffic to a secondary IP address if one's main connection is not working. The DNS Failover Service regularly checks to make sure the main connection is working and if it finds a problem it diverts the traffic.
What tests can be used for WAN Failover?
WAN Failover needs to have tests set up for each WAN Interface. These are usually run by qualified computer technicians to avoid glitches in your network.
What is the meaning of a 'failover' in computing?
Failover is the automatic switching of computer servers or systems from a main system to a standby system due to some kind of failure or abnormal termination that occurs within the main system.
What uses a shared storage medium to hold application data?
A failover cluster.
How do I tell if I need to switch to multi-wan load balancing?
You should switch if there is a Failover Script for Dual. You can read more at blog.taragana.com/.../how-to-load-balancing-failover-with-dual-multi-wan-adsl-cable-connections-on-linux.
What does failover cluster mean?
The failover cluster is a term used in Computer Science. It represents a large amount of servers put into one place (clustered) to handle a very high load of incoming connections and continue their operation.
In the world of computing what is load balancing and failover?
The term load balance is used to describe a computer networking method in which workloads are distributed across multiple computers. It is used to implement failover, which is the continuation of a service after the failure of one or more components.
How many nodes does Windows Server 2008 Standard edition support for a failover cluster?
16 nodes
