Renaming Files for RMAN Restore
We usually need to duplicate our databases to test servers which have different disk layouts than production server. So we need to distribute the datafiles according to the disk space and directory...
View ArticleHow to Change IP adresses of SCAN Name in Oracle 11gR2 RAC
Today, I needed to update the IP adresses of scan name in Oracle 11gR2 RAC environment. As you know, these IP addresses are defined in DNS but they also stored in Oracle Clusterware resource...
View ArticleEnterprise Manager 12c: AdminServer Could Not Be Started
I got an error when trying to start Oracle Enterprise Manager Cloud Control 12c. It says AdminServer couldn’t be started:[oracle@oem12c bin]$./emctl start oms Oracle Enterprise Manager Cloud Control...
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Book Review: Oracle Database 12c Backup and Recovery Survival Guide
Oracle Database 12c Backup and Recovery Survival Guide, written by Francisco Munoz Alvarez and Aman Sharma, is published by Packt. I’m one of the technical editors of the book and I can say that it’s...
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How to Install Oracle SQL Developer on Ubuntu
I’ve installed Ubuntu to my laptop (another try to live with Linux), and now trying to organize useful stuff. I wanted to install Oracle SQL Developer and couldn’t find an up-to-date document about it,...
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Oracle Partner Events: 12c Roadshow And Delivering DBaaS
On November 5th and 6th, I attended to Oracle Database 12c Partner Roadshow in Istanbul. During this 2-day partner-only (and free) briefing, François Pons from Oracle Server Technologies, gave...
View ArticleExadata x4 High Performance Disks
As I see, the data sheet of Exadata x4-2 says Oracle used 10.000 RPM disks for high performance. You probably know that Exadata provides 2 alternative configurations for hard disks. You may pick high...
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Enterprise Manager 12c Host Availability Page (Status History)
Some servers were unreachable today, fortunately they were all monitored by Oracle Enterprise Manager 12c, so I see them on the summary page and contacted the related sysadmin staff to fix the...
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TROUG Ankara Meeting
Istanbul is the biggest city of Turkey with more than 15 million population, and the largest companies of Turkey are located in Istanbul. So as you may expect, Istanbul is the heart of IT industry and...
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How to Add RAC Databases to Enterprise Manager Cloud Control 12c
It’s been asked several times to me how to add RAC (Clustered Databases) to Enterprise Manager 12c. Finally I found time to get screenshots and prepare a step-by-step guide. The interesting point about...
View ArticleUnable to Register with Red Hat Network
We want to install Oracle E-Business Suite on Red Hat Linux 6.2. To be able to use RHN Repository to install packages, we tried to register our system but when we issued “rhn_register” we got the...
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Book Review: Managing IaaS and DBaaS Clouds with Oracle Enterprise Manager...
I try to read and review all books about Enterprise Manager Cloud Control 12c (EM12c). The last one I read is, “Managing IaaS and DBaaS Clouds with Oracle Enterprise Manager Cloud Control 12c”. As you...
View ArticleTips And Tricks For Installing Oracle Internet Directory
One of our customer needed to integrate OID with Siebel, and they asked me to install OID on a test server. I probably encountered all possibly errors during the installation but completed it...
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Finding And Deleting Old Files (on Unix and Windows)
I needed to write short scripts to delete old files on a Windows Server. It’s a very easy task on UNIX flavors but the limited capacity of Windows command line made me worried. You can use a simple...
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TROUG DBA/Developer SIG 2014
This is a late post (sorry for all Turkish Oracle Users waiting for the presentations) about TROUG DBA/Developer SIG 2014. We successfully organized a hybrid SIG meeting on February 13th, but I could...
View ArticleA Short Script to List Mappings of ASM Disks to Physical Devices
I got a warning mail from our Enterprise Manager Cloud Control, it says “Disk Device emcpowere1 is 98.468% busy.”. I logged into the server to see the busy disk. There were no related mount point...
View ArticleEMDIAG Repvfy Kit for Oracle Enterprise Manager Cloud Control 12c
EMDIAG Repvfy is a tool which is designed to collect data from a Cloud Control Management Repository to assist in the diagnosis and optimization of EM12c. It’s mentioned on “Oracle Enterprise Manager...
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Oracle Enterprise Manager Cloud Control 12c Plugin for PostgreSQL
In my company, we use PostgreSQL, Postgres Plus (a commercial fork of PostgreSQL provided by EnterpriseDB) beside Oracle databases. Unfortunately different databases need different tools to monitor,...
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Enterprise Manager 12c: Be Careful About Naming DB Systems
Yesterday, we added a development database to our EM12c system. About 15 minutes later, the incident management flooded us with alert mails about newly added database. Unfortunately its SID was same...
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Upgrading Enterprise Manager Cloud Control 12.1.0.3 to 12.1.0.4
Enterprise Manager Cloud Control 12.1.0.4 is released yesterday, and I have downloaded it immediately to upgrade our system. It was a very smooth process. The version of our Enterprise Manager was...
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