Tags » Data Guard

Finally Oracle has changed the License Documentation that Standby CDB can be open in Read Only without using Active Data Guard license!

Regular readers of our blog have read the article Oracle Multitenant 12.2 – the big challenge of PDB hot cloning in MAA environments, which explains how to make a Hot Clone in a Data Guard environment, so that the standby after the cloning database is not corrupt. 111 more words


ORA-16665: timeout waiting for the result from a database

Got this message and what Oracle say?

$ oerr ORA 16665
16665, 0000, "timeout waiting for the result from a database"
// *Cause: The Oracle Data Guard broker was forced to time out a network
// connection to a remote database because:
// - The network call to the remote database did not complete in
// a timely manner.
94 more words
Oracle Database


Oracle 12c introduced a RMAN feature: RECOVER/RESTORE … FROM SERVICE. When rolling forward a standby database, this involved the below steps on the standby database: 2,144 more words


Missing Disk / Dismounting Diskgroup after duplicate from ASM to ACFS

Last week I was asked to create a Data Guard environment. Quite simple task, you may think. And actually it was, but with some funny side effects. 762 more words


Did You Know #24 - Blocked Instances

Even after years of working with something, you can always learn new stuff. Today I tried to create a standby database using the duplicate command. When you duplicate a database you need to connect to both instances (primary as target and standby as auxiliary) using SQL*Net (and not “/”). 175 more words

Did You Know

Data Guard warning: This file is unencrypted

Today I did some functional tests with a newly created Data Guard setup. The database is with the latest (January) Bundlepatch installed and it does not use Oracle Managed Files (OMF). 387 more words


Recover Standby Using an Incremental Backup

Hey all,
I know is there is a lot of posts about it in the internet, but I’m doing mine about it. The main reason is that the other has lots of steps and outputs and I miss simplicity. 260 more words