Oracle Standby Fuzzy File

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Example tnsnames. Start the Data Guard listener. Start the Data Guard listener on both a and b hosts. LISTENERDG. Test the Oracle Net connections. Verify the configuration from both hosts. Attempting to contact description SDU3. Attempting to contact description SDU3. OK 0 msec Preparing the Primary. A number of prerequisites must be met on the primary in order to use Fast Start Failover. Oracle Standby Fuzzy File' title='Oracle Standby Fuzzy File' />This section describes how to configure and verify each prerequisite. To see if your primary has already met a prerequisite, follow the instructions in the. Verify section. Steps that require the primary to be in a mounted not open state are grouped together in the section below entitled. Steps Requiring a Bounce of the Primary. Add the Data Guard listener to locallisteners parameter. To allow the database to register with the Data Guard listener, the listener endpoint must be added to the databases locallistener parameter. If locallistener is already in use, add the Data Guard listener to the list. After setting locallistener, register the database with the listener and verify the services have been registered. Note You can also use TNS aliases defined in the tnsnames. This is particularly useful when registering with multiple listeners where the parameter value would otherwise exceed the 2. Set. alter system set locallisteneraddresshostdbhost aport1. Verify. show parameter locallistener. NAME TYPE VALUE. Services Summary. Service DB1A has 1 instances. Instance db. 1, status READY, has 1 handlers for this service. Service DB1AXPT has 1 instances. Instance db. 1, status READY, has 1 handlers for this service. Service db. 1XDB has 1 instances. Instance db. 1, status READY, has 1 handlers for this service. Service db. 1adgmgrl. Instance db. 1, status UNKNOWN, has 1 handlers for this service. Service db. 1astatic. Instance db. 1, status UNKNOWN, has 1 handlers for this service. The command completed successfully. Enable Force Logging. All Data Guard environments should enable force logging at the database level in order to guard against nologging tablespaces from being added. Enable. alter database force logging. YES Create an spfile. Broker changes database parameters during startup and role transitions via ALTER SYSTEM commands. An spfile is required to persist these changes. Create. create spfiledbsspfileORACLESID. ORACLESID. ora. Verify. NAME TYPE VALUE. Create a password file. All Data Guard environments require the use of a password file in order to allow the databases to connect to each other. Create. orapwd fileORACLEHOMEdbsorapwORACLESID. Verify. select from vpwfileusers. USERNAME SYSDB SYSOP SYSAS. SYS TRUE TRUE FALSE Enable remote login. Remote login is required, along with a password file, to allow the databases in a Data Guard configuration to connect to each other. Enable. alter system set remoteloginpasswordfileexclusive scopespfile. Verify. show parameter remoteloginpasswordfile. NAME TYPE VALUE. EXCLUSIVE Set dbuniquename. Each database in a Data Guard configuration must have a unique name. This guide uses the naming convention of appending an underscore followed by a letter to the dbname to create the dbuniquename. Set. alter system set dbuniquename db. NAME TYPE VALUE. Verify. NAME TYPE VALUE. Configure Flash Recovery Area. If you dont already have a Flash Recovery Area FRA, you will need to create one for Flashback Database. If you already have an FRA, you may need to increase its size in order to accommodate the Flashback Database files. See the. Flashback Database section above for information on storage requirements. Configure. alter system set dbrecoveryfiledestsize 2. Verify. show parameter dbrecoveryfile. NAME TYPE VALUE. G Enable automatic standby file management. Not a hard requirement, but recommended. Enable. alter system set standbyfilemanagementauto. Verify. show parameter standbyfilemanagement. NAME TYPE VALUE. AUTO Set logarchiveconfig. This parameter must be set before the primary can be opened in Maximum Availability mode. The remaining Data Guard related parameters will be set by Broker later in the walkthrough. Set. alter system set logarchiveconfigDGCONFIGdb. Verify. show parameter logarchiveconfig. NAME TYPE VALUE. DGCONFIGdb. Create standby redo logs. In order to accommodate all load conditions, Oracle recommends having at least one more SRL group than the number of ORL groups of the same size. This walkthrough assumes that all ORLs and SRLs on the primary and standby databases are the same size. Create. Determine the number and size of the Online Redo Log files ORLs. BYTES COUNTGROUP. Find the highest group. Add the SRLs. Unlike ORLs, SRLs should be created with only one member per group. There is no need to multiplex SRLs in order to protect redo as with ORLs the redo is already protected in the ORLs of the primary. Multiplexing SRLs merely adds unnecessary IO and can increase commit latency. For systems with multiple RAID controllers, consider creating SRLs such that their IO is balanced across the controllers. In this example, there are 3 ORLs with a max group of 3. We will create 4 SRLs starting with group 1. Starting with 1. 1 is purely cosmetic it allows new ORL groups to be added later while keeping their group in the same sequence as the existing ORLs. Verify. select group, type, member from vlogfile where type STANDBY. GROUP TYPE MEMBER. STANDBY u. 02oradatadb. STANDBY u. 02oradatadb. STANDBY u. 02oradatadb. STANDBY u. 02oradatadb. Steps Requiring a Bounce of the Primary. The following steps all require the database to be in a mounted not open state. They can all be done at the same time in a single bounce. Enable archivelog mode. Enable. alter database archivelog. ARCHIVELOG Enable Flashback Database. Enable. alter database flashback on. Verify. select flashbackon from vdatabase. NAME TYPE VALUE. Enable Maximum Availability Mode. As mentioned above, Maximum Availability mode is mandatory for Oracle Database 1. Oracle Database 1. Enable. alter database set standby database to maximize availability. Verify. select protectionmode from vdatabase. PROTECTIONMODE. MAXIMUM AVAILABILITY Create the Standby Database. If you dont already have a standby database, use your favorite method to create one. The example below takes advantage of the 1. RMAN Active Database Duplication feature. Ps3 Sixaxis Driver Windows 7 32. This feature enables RMAN to duplicate an existing database over the network without requiring a backup to disk or tape. The following assumes that the standby host has been setup according to Oracles recommendations and that the operating system, accounts, security, resource limits, directory structure, etc. Copy the password file from the primary to the standby. In Oracle Database 1. Oracle Database 1. Oracle Database 1. SYS passwords are the same on the primary and standby. Create oratab entry. Add an entry to the oratab file for the standby. Y. Create an init. For the RMAN duplicate active database method, the init. RMAN will copy the spfile from the primary, so this init.