Contributors In this article You can use the details in this topic for monitoring mailbox database copies for database availability groups DAGsfor gathering diagnostic information, and for configuring the low disk space monitoring threshold. This cmdlet enables you to view information about all copies of a particular database, information about a specific copy of a database on a specific server, or information about all database copies on a server. The following table describes possible values for the copy status of a mailbox database copy.
To uniquely identify a data file, Oracle Database assigns each datafile two associated file numbers: This file number can be used in many SQL statements that reference datafiles in place of using the file name.
Tempfiles are a special class of datafiles that are associated only with temporary tablespaces. For small and medium size databases, relative file numbers usually have the same value as the absolute file number.
However, when the number of datafiles in a database exceeds a threshold typicallythe relative file number differs from the absolute file number. The background process was either unable to find one of the data files or failed to lock it because the file was already in use.
The database will prohibit access to this file but other files will be unaffected. However the first instance to open the database will need to access all online data files.
Accompanying error from the operating system describes why the file could not be identified.
|Oracle Database Instance||In addition to changing the account name, SQL Server Configuration Manager performs additional configuration such as updating the Windows local security store which protects the service master key for the Database Engine. Other tools such as the Windows Services Control Manager can change the account name but do not change all the required settings.|
Have operating system make file available to database. Check that the file is present on the file system 7. Most likely the file is offline. Check the state of the file. Bring it online The file is offline or the tablespace is also offline.Using the cluster endpoint, you are using the current writer instance.
When there is a failover, this DNS will point to the new master, but this change take some time . The application servers are running Squid 3, Apache , and PHP 5, and use Oracle's client side load-balancing and failover to connect to the Oracle database cluster. Squid 3 acts as a front-end web server on port Exchange Server Database Availability Group Overview A Database Availability Group is a group of up to 16 Exchange Server servers that are installed with the Mailbox server role.
Each server that is a member of the DAG is capable of hosting active or passive copies of mailbox databases that reside on servers in the group.
Terms. STUDY. PLAY. affinity. Terminates all existing connections to the cluster node and stops the NLB service. unicast.
Each packet is sent to a single network destination identified by a unique address. unicast mode.
When used with NLB, NLB replaces the network card's original MAC address and all cluster hosts use the same unicast. The application servers are running Squid 3, Apache , and PHP 5, and use Oracle's client side load-balancing and failover to connect to the Oracle database cluster.
Squid 3 . BINARY_DOUBLE is a bit, double-precision floating-point number data type. Each BINARY_DOUBLE value requires 9 bytes, including a length byte.