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Franck Pachot

Oracle Public Cloud 12cR2: TDE is not an option

By | Cloud, Database Administration & Monitoring | No Comments

In Oracle Public Cloud, Transparent Data Encryption is not an option. You can use it because it is included in all database services for all editions. You have to use it because the database won’t allow you to create, or import, non encrypted tablespaces. This is controlled by a new parameter, encrypt_new_tablespaces, which defaults to CLOUD_ONLY;  

 
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Franck Pachot

Exadata Express Cloud Service: MAX_PDB_STORAGE

By | Cloud, Database Administration & Monitoring | No Comments

The separation of roles between system DBA and application DBA is the way to go for agile development and the PDBaaS managed service is an excellent way to play with this concept: You are PDB administrator but not the CDB administrator. Here is an example about tablespace creation/deletion, and the kind of problems that may arise with this architecture.  

 
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Franck Pachot

Running SLOB on Exadata Express Cloud Service

By | Database Administration & Monitoring | One Comment

The Exadata Express Cloud Service is a managed PDBaaS: Oracle is the system admin and the CDB database administrator, you are the PDB administrator. You connect with a local user, PDB_ADMIN, which is no SYSDBA privilege but has a PDB_DBA which has nearly all DBA rights, but with some features disabled by lockdown profile. I have no worry about the performance on this service: it is an Exadata X5 half rack bare metal (my guess),…

 
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Franck Pachot

Oracle Core factor and Oracle or non-Oracle Cloud

By | Database Administration & Monitoring | 2 Comments

Oracle Database licensing can be based on two metrics: Processor or Named User Plus (NUP). NUP also necessitate to count the processors because there is a minimum number of NUP per processor. Then it is very important to know how to count processors. The time where a machine had 1 socket with 1 processor with 1 chip with 1 core running 1 thread is really old past. Today, we have physical machines with multi-core processors,…

 
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Franck Pachot

Exadata Express Cloud Service: PDB_ADMIN privileges

By | Database Administration & Monitoring | No Comments

I usually explain that the main point about Multitenant Architecture is the separation of roles between a system DBA who manages the container, and is responsible for its availability, and application DBA who owns all the application objects, and is responsible for data integrity and performance. The Exadata Express Cloud Service is the implementation of that: a CDB managed by Oracle and a PDB that you administrate. But the fact that the system is shared,…

 
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Franck Pachot

Encryption in Oracle Public Cloud

By | Database Administration & Monitoring | 2 Comments

Oracle Transparent Data Encryption is available without option on the Oracle Public Cloud: Standard Edition as well as Enterprise Edition (EE, EE-HP EE-EP, ECS). More than that, the DBaaS enforces TDE for any user tablespace even when not specifying in the CREATE TABLESPACE. It you are not familiar with TDE key management (wallets) then you have probably encountered ORA-28374: typed master key not found in wallet. Rather than another tutorial on TDE I’ll try to…

 
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Mouhamadou Diaw

Installing Dbvisit Standby 7 between two AWS Linux Instances

By | Cloud | No Comments

Dbvisit is compatible with Amazon Cloud. In this article we are going to talk about installation of Oracle SE2 and Dbvisit Standby 7 between 2 AWS linux instances. We suppose that ssh equivalence is configured for user oracle used for dbvisit installation. First we have to install oracle software on both servers: primaserver and standserver. To Install oracle-rdbms-server-12cR1-preinstall.x86_64 package yum can be used to configure the repository [root@primaserver yum.repos.d]# wget http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol7 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle –2016-11-14 03:52:34–…

 
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