Category Archives: Exadata

Exadata-related content

RAC, Data Guard, and Password Files

When moving from one system to another, one of my favorite migration methods is using data guard.  It has its restrictions – the destination should be the same platform (exceptions noted in MOS note #413484.1), same version unless you’re performing an upgrade, and that a block-for-block copy of the database is acceptable.  Utilizing data guard… Read More »

OEDA Virtualized Cluster Discovery With SSH Keys

As part of the Oracle Exadata Deployment Assistant (“OEDA”), Oracle includes a command line utility to read and modify the XML files used for deployment of an Exadata cluster.  Typical use cases are to install additional Oracle database versions, or to create multiple databases before deployment.  There are several additional features included for virtualized clusters,… Read More »

Checking Flash Cache Mode in Exadata Cloud

While looking at an exachk report for an Exadata rack running in Oracle Cloud Infrastructure, I saw an interesting finding: Since this is an Oracle cloud environment, we don’t have any access to view the storage servers – they are managed and maintained by Oracle.  For several reasons, I believed this to be a false… Read More »

Changing IP Addresses on InfiniBand Network with 12.2 GI on Exadata

I was tasked a while back with modifying the IP addresses assigned to the InfiniBand network on an X6-2 rack.  We were configuring a ZFS appliance to share between 2 Exadata clusters, and we wanted to keep them on separate network ranges.  In this case, we were moving the interfaces from 192.168.10.x/22 (the Exadata default… Read More »

Exadata Storage Server Patching in 18.1.1 and Above

One of the cool new features that was introduced with was a subtle change in the Exadata storage server patching process.  While not required, this new functionality removes the need to use patchmgr to drive Exadata storage server patches.  In Juan Loaiza’s Open World session on new Exadata features, this slide jumped out to… Read More »