Tag: exadata

Listener over Infiniband on Exadata (part 1)

Nice topic, right? Beautiful thing to work with when you have Oracle Engineered Systems. So, why would you configure a listener over the InfiniBand Network? How does that make sense in your environment and how would you leverage that? Background…

Read More >

How to Patch an Exadata (Part 1) – Introduction and Prerequisites

Edit November 2018 : This post has been rebranded and now also includes how to upgrade Exadata to 18c. The new version can be found here. Once you have installed your new Exadata machine will come a time where you’ll be asked…

Read More >

How to Install a Brand New Exadata X5 (Part 2)

Fred Denis, Pythian Oracle Database Expert, continues his post on installing a brand new Exadata X5.

Read More >

How to install a brand new Exadata X5 (Part 1)

Edit November 2018 : This post has been updated and will be maintained here in the future. When you buy an Exadata machine, you can ask Oracle to proceed with the installation or let some brilliant DBAs like the one…

Read More >

ASM 12c : How to Rename a Diskgroup

Fred Denis, Pythian Oracle Database Expert, explains how to rename a diskgroup.

Read More >

ORA-15418: Appliance Mode Not Supported For Compatible.asm 12.1.0.0.0

Fred Denis, Pythian Oracle Database Expert, talks about his encounter with error code ORA-15418: on 12.1 on Exadata.

Read More >

Favorite Way: Migrating to Exadata

There are lots of considerations to be taken into account when migrating databases to the Exadata. It’s like any other migration. DBAs and other stakeholders of the system have to evaluate what to migrate and what not to, physical and…

Read More >

Exadata X5 – A Practical Point of View of the New Hardware and Licensing

Oracle recently announced its latest iteration of Exadata – X5-2. It includes a refresh of the hardware to the most recent Xeon® E5-2699 v3 CPUs. These new CPUs boost the total cores count in a full rack to 288. This…

Read More >

OLTP type 64 compression and ‘enq: TX – allocate ITL entry’ on Exadata

Recently we’ve seen a strange problem with the deadlocks at the client database on Exadata, Oracle version 11.2.0.4 . Wait events analysis showed that sessions were waiting for “enq: TX – allocate ITL entry” event. It was strange because there…

Read More >

How to Troubleshoot OEM 12c Cloud Control Auto-Discovery

OEM 12c Cloud Control looks daily for new targets, placing them in a queue for admin promotion to managed objects. Details and troubleshooting info follow.

Read More >
Page 1 of 212