Data Guard

How many members for standby redo logs?

By Franck Pachot . I see lot of databases with two members for redo logs and also two members for standby redo logs. Why not, but when asking I realized that there are some mis-comprehension about it. And what was(…)

Oracle 12cR2, RAC, Cloud, ACFS, PDB thin clones and asmadmin

By Franck Pachot . In the Oracle Public Cloud, fast provisioning gets all its meaning when creating a RAC database service: in one hour you can get an operational highly available multitenant database. You can even create it in Data(…)

Oracle 12c – How to Recover lost DataGuard Broker Configuration Files

By William Sescu If you are using RMAN to back up your database, you are already doing the right thing. However, RMAN does not take care of everything. e.g. it is not backing up the following things, to mention just(…)

12cR2: Recover nonlogged blocks after NOLOGGING in Data Guard

By Franck Pachot . You can accept to do NOLOGGING operations on bulk loads or index build according that you do a backup just after, and that your recovery plan mentions how to load the data again in case(…)

12cR2 DBCA can create a standby database

By Franck Pachot . Do you like DBCA to create a database from command line, with -silent -createDatabase? On a simple command line you can provision a database, with oratab, tnsnames.ora directory creation and any setting you want. And you(…)

Oracle 12c – How to Prevent License Violation with Active Data Guard

By William Sescu There are some articles floating around how to prevent a license violation with Active Data Guard. Some of them related to an underscore parameter “_query_on_physical” and some of them related to a startup trigger. Both of them(…)

Dataguard Oracle 12.2 : Support for Multiple Observers

By Mouhamadou Diaw With Oracle 12cR2 it is now possible to configure multiple observers within a single Oracle Data Guard broker configuration. Multiple observers provide an immediate benefit for High Availability. If one observer fails, there are additional observers(…)

Oracle 12cR2 – DataGuard Switchover with Oracle Wallets

By William Sescu I would like to make my DataGuard environment more secure, by eliminating the typing of “connect sys/Manager1” for my DGMGRL commands. Especially the ones, that I have in my scripts. For example: oracle@dbidg01:/home/oracle/ [DBIT122] dgmgrl <<-EOF >(…)

Oracle Database 12c Release 2 Multitenant (Oracle Press)

By Franck Pachot . Here it is. The multitenant book is out for sale...

Datawarehouse ODS load is fast and easy in Enterprise Edition

By Franck Pachot . In a previous post, tribute to transportable tablespaces (TTS), I said that TTS is also used to move data quickly from operational database to a datawarehouse ODS. For sure, you don't transport(…)