Purpose is to demonstrate how to create HA for Bi-Directional Replication Goldengate installed on ACFS with RAC cluster using XAG.
XAG simplifies the process since there are no requirements to create action scripts.
Please review REFERENCE section for versions used in test case and versions requirements.
Goldengate is installed on ACFS for simplicity; otherwise, at a minimum the following directories br, dirchk, dirdat, dirtmp will need to be on shared storage with symbolic links if (more...)
I am losing the luxury of using GUI since clients typically may not have X-Windows or VNC Server installed
Adapt or die and re-learning command line again.
Better to verify before installation than to clean up a problematic install.
Use runcluvfy to verify DB install:
runcluvfy.sh stage -pre dbinst -n rac01,rac02 -r 11gR2 -d /u01/app/oracle/product/22.214.171.124/db_1 -osdba dba -fixup -fixupdir /tmp -verbose
Use runInstaller -executePrereqs to verify responseFile for silent install and detect issues:
My typical VirtualBox network configuration is: eth0 (NAT), eth1 (Host Only), eth2(Internal)
runcluvfy.sh stage -pre crsinst -n rac01,rac02 -r 11gR2 -fixup -fixupdir /tmp – FAILED
Node connectivity passed for subnet "10.0.2.0" with node(s) rac02,rac01
PRVF-7617 : Node connectivity between "rac01 : 10.0.2.15" and "rac02 : 10.0.2.15" failed
TCP connectivity check failed for subnet "10.0.2.0"
Node connectivity passed for subnet "192.168. (more...)
Sometimes I get excited over simple things. Today, I learned something new, something about human behaviors.
Basically, there are 4 quadrants for human behaviors.
If one does not understand the other person’s behavior, then communication can be very difficult.
To find more about human behaviors, read The DISC Model of Human Behavior – A Quick Overview.
Which quadrant are you in, versus your manager?
Do you validate your backup and what command do you use?
Lately, I have been using restore database validate preview summary to kill 2 birds with 1 stone.
The issue is RMAN will skip validation of archived log backupset when archived log exists.
Does this seem wrong to you?
Please take a look at a test case here
What do you think?
Normally, when I create physical standby database, the configuration has the same directory structures and name values as production with the exception of db_unique_name.
But this time was not the case as shown below.
ANGEL:(SYS@xmenstby):PHYSICAL STANDBY> show parameter name
NAME TYPE VALUE
------------------------- ----------- ----------------------------------------
db_file_name_convert string /oradata/xmenprod, /oradata/xmenstby
db_name string xmenprod
db_unique_name string angel_xmenstby
global_names boolean FALSE
instance_name string xmenstby
log_file_name_convert string /oradata/xmenprod, /oradata/xmenstby
service_names string xmenstby
I came across an interesting article Employees Who Stay In Companies Longer Than Two Years Get Paid 50% Less and thought to share with you.
Let’s use the rule of 72 as an example.
Basically, the rule of 72 is a simple method of determining the number of years an investment will double by dividing 72 by the rate of return.
With a 4% annual salary increase, salary will double in 18 years (72/4).
With an (more...)
Another wager lost to my daughter, this time an iPhone 5s.
Thank God she does not want the 6.
Learning the alphabets in school, A is for apple.
Earning straight A’s all the way through 8th grade.
Having dad pay for all the Apple toys – Priceless!