Oracle Blockchain Tables With Oracle Database 20c/21c the new feature Oracle Blockchain Tables has been introduced. Blockchain Tables enable Oracle Database users to create tamper-resistant data management without distributing a ledger across multiple parties. Database security can be improved by using Blockchain Tables to avoid user fraud and administrator fraud as well. One of the main characteristics of Oracle Blockchain…
In this blog I want to introduce you to a workaround for a performance issue which randomly appeared during the upgrades of several Oracle 12c databases to 19c I performed for a financial services provider. During the upgrades we ran into a severe performance issue after the upgrades of more than 40 databases had worked just fine. While most of…
Over the years I have been working with Documentum, I participated in many migrations and/or upgrades. Just like everything else, this obviously builds up some experience but what if you are pretty new to Documentum and it is your first time working on one? Sure, there is the Documentation from OpenText, which is several dozens of pages (~140, depending on…
One of the best practices while doing upgrade of Documentum is to unlock the various repository objects before starting. This will make sure that if the upgrade process requires an update of some objects, then it will succeed and not cause you issues because you are missing some pieces. This also brings a second benefit: it means that if you…
As part of the same migration & upgrade project I talked about in previous blogs already (corrupt lockbox & duplicate objects), I have seen a strange but consistent behavior in each upgrade from Documentum 7.x to 16.x versions. During this process, just before the upgrade, a cloning is done to a staging environment, to keep the source untouched. As…
I have seen several times in the past duplicate JMS and/or ACS objects created by OpenText (and Dell/EMC before) installers. I opened several tickets with the OpenText Support over the past 4/5 years to try to get a reason and a fix (had the issue with all versions, 7.1, 7.2, 7.3, 16.4). The first few tickets (2 or 3, I…
A couple months ago, I was working on an upgrade project from Documentum 7.x to 16.4. During this upgrade, I faced a few issues so I will try to write some blogs about all that in the coming weeks, starting today with an alleged “corrupt” Lockbox. This upgrade was part of a migration as well from Virtual Machines to Containers…
By Mouhamadou Diaw With Oracle 20c, the non-multitenant architecture is no longer supported. So, people will have to migrate their databases to container if they want to use Oracle 20c. There are many methods to transform a non-cdb database to a pluggable one. -Datapump -Full Trabsportable Tablespaces -Plugging non-cdb database , upgrade the plugged database and then convert -Upgrading the…
As you probably know, Documentum introduced the optional use of a Lockbox since version 7. It was done initially to contribute to the security of the AEK key which is one of the central components of a Content Server. Time showed that, well, it’s not so easy and since then, nothing much changed on the Lockbox layer. With the version…
At a customer, we are upgrading Control-M Agents running on Windows/Unix from 9.0.00.400 to 9.0.19.200 using Agent Deployment, an upgrade of one agent fails with error talking about communication issue between Control-M/server and Control-M agent: Testing Communication with Control-M/Server using new Control-M/Agent binaries failed, Control-M/Agent Upgrade aborted, please check Log and agent installation requirements On the other hand, the agent…
If you are used to Java, you probably know that there are really important security fixes published every quarter in the Java Critical Patch Update (CPU) and it’s really important to keep it up to date. It’s always easy to upgrade your Java installation, you just have to deploy the new version entirely. In most cases, it’s also pretty easy…
One of our customer has been initially creating a RMAN catalog on an Oracle database release 12.1.0.2.0 and was now intending to register new Oracle 12.2.0.1.0 databases. Registering the databases will be failing with errors : PL/SQL package RCAT.DBMS_RCVCAT version 12.01.00.02 in RCVCAT database is too old RMAN-06429: RCVCAT database is not compatible with this version of RMAN The problem is…
