This topic fits very well as I present about +100 TB migrations today at the “Harmony” User Group Conference in Finland.
Finland in May
The question whether the PERL scripts for RMAN incrementally rolled forward backups we deliver via MOS Note 1389592.1 (11G – Reduce Transportable Tablespace Downtime using Cross Platform Incremental Backup) will be supported for migrations to non-Exadata systems such as Oracle SuperCluster as well.… [Read More]
Question: Can you EXCLUDE one or more tablespaces when doing a Full Transportable Export/Import?
First of all, this question came up already twice in real world customer migrations. So it’s not a totally unusual question. In one case a tablespace called USERS got precreated and some data did get stored. In the second case we did use RMAN incremental backups to migrate a very large database (>100TB) and some tablespaces weren’t part of the backup set.… [Read More]
One requirement of Transportable Tablespaces (and of course Full Transportable Export/Import as well) is to have identical database character sets AND identical time zone settings.
Source database has a lower time zone setting than the default target database in the destination home.
Lets assume you’d like to migrate an Oracle 184.108.40.206 off IBM AIX and migrate it into Oracle 220.127.116.11 on an Exadata meaning Oracle Linux 6.… [Read More]
We recently worked with a customer who noticed that they were not able to use transportable tablespaces to connect the same tablespace data files to two databases at the same time, even after setting the tablespaces READ ONLY in SQL*Plus. This is new behavior in 12c, and many customers are not yet aware of this change.… [Read More]
Roy and I blogged about Full Transportable Export/Import in the past:
If you haven’t heard of this database feature, it allows you to migrate a full database by using Transportable Tablespaces as a base technology but letting Data Pump do all the manual steps for you in a one-command migration.… [Read More]
This blog post is an addition to:
Full Transportable Export/Import – Migrating an 18.104.22.168 database to Oracle Database 12c- into the Oracle Cloud
Seth Miller commented the pitfall of having a serious issue during the Data Pump run, Data Pump exiting and not finishing, and you’ll have to do the entire backup/restore/incremental-roll-foward thing again.… [Read More]
Full Transportable Export/Import – one of the coolest features in Oracle Database 12c
We blogged about Full Transportable Export/Import a while back. It is – no doubt – one of the coolest features in Oracle Database 12c. And it is part of our Hands-On Lab exercise (Hands On Lab – Upgrade, Migrate, Consolidate to Oracle Database 12c) as well.… [Read More]