Posts Tagged ‘oracle’
OUI-67124 – Copy failed from ‘location 1′ to ‘location 2′
Just a short note to discuss a problem faced by me while applying CPU Jan patch to clusterware on AIX 5L. I was getting following errors UtilSession failed: ApplySession failed in system modification phase... 'ApplySession::apply failed: Copy failed from [Read More]
Scheduling Job through Cron??
In case you came across this link searching for Cron syntax, then you can refer to following link http://www.adminschoice.com/docs/crontab.htm Other’s can continue reading the article …. This was a problem which I faced yesterday. We had a mview refresh which [Read More]
Creating ASM devices on AIX
I thought of sharing few tips on creating ASM devices on AIX which I will be helpful to Oracle DBA’s. Suppose SysAdmin gives you list of Serial numbers for LUN instead of device Name pcmpath query device DEV#: 33 DEVICE NAME: hdisk33 TYPE: 2107900 ALGORITHM: Load [Read More]
Recreating Database Link
I was trying to recreate database links as part of database migration activity. This involved mixture of 8i,9i and 10g database. In case of 8i/9i it is very easy to find the old password which was used to create database link as passwords for database links are stored in [Read More]
Database Security: Transparent Data Encryption
Data in the database is secured by using authentication, authorization and auditing mechanism, but the information stored in the datafiles can be read using any hex-editor tools or other OS level utilities, which is causing threat to sensitive data. To overcome this [Read More]
Index Access best approach?? Not Always…
There is a common misconception that Index access is the best access method for query execution. This approach leads to people concentrate on removing Full Table Scans (FTS) from the Query execution plan. I recently worked on a performance tuning issue where I found such [Read More]
How To Change/Restore User Password in 11G
Oracle 11g introduces Case-sensitive passwords for database authentication. Along with this if you wish to change the password (temporarily) and reset it back to old , you will find that password field in dba_users is empty. Prior to 11g we could use following technique to [Read More]
Tom Kyte Seminar in Bangalore, India
All India Oracle user Group (AIOUG) has arranged for Seminar by Tom Kyte on 18th December 2008. Venue- The Good Shepherd Auditorium Residency Road- Museum Road Junction Opp. St. Joseph’s P.U. College Bangalore – 560 025 SEMINAR TOPICS Storage Techniques [Read More]
10g RAC Tuning :Useful Link
I came across useful link which contains 10g RAC Tuning tips from Joel Goodman (Oracle). It discusses RAC Instance Recovery concepts and key things to look out for while tuning RAC (Real Application Clusters) Databases. Must watch for anyone who is learning RAC. You can [Read More]
Full Database Export Failing With ORA-00980
While trying to do a full export for 10.2.0.3 database, we were getting following errors About to export the entire database ... . exporting tablespace definitions . exporting profiles . exporting user definitions . exporting roles . exporting resource costs . exporting [Read More]
Question:Sizing ASM LUN
We received following question from Mr Orlando through our Contact Page How about a discussion on how to size our LUNS to use with ASM. For instance we have a Dell MD3000 with 44x300GB HDDs (protected by RAID-10) and we’re planning to create LUNs of 2TB on the [Read More]
How To Recover From Corrupted OCR Disk
It is very common where a DBA is left with corrupted OCR disk without having any good backup. The same situation was experienced by me few days back. One node of RAC database shows the following: NODE1: <span style="font-family: [Read More]
Issues with CLUSTER_DATABASE parameter
Yesterday, I faced an interesting scenario while upgrading 2 Node RAC Database. I tried setting up CLUSTER_DATABASE=FALSE in spfile from Node 1,but it displayed value as TRUE after restarting database.Same was true for Database startup entries in Alert log. If I did the [Read More]
UNKNOWN State Of RAC Resources
While Checking the status of database resources, ASM was shown as UNKNOWN on one node of a two node RAC. $ crs_stat -t <span style="font-family: arial,helvetica,sans-serif;">Name Type Target State Host [Read More]
Using RDA As RDBMS Pre-Install Check Tool
Many of us would have come across RDA (Remote Diagnostic Agent) while working on a ticket with Oracle support. In case you have not heard about it, I would recommend to go through Metalink Note:314422.1 – Remote Diagnostic Agent (RDA) 4 – Getting Started RDA [Read More]
