I am a Senior Oracle DBA with over 16 years of IT experience which also includes above 8 years of production Oracle DBA exposure. Presently the only Oracle 10g Certified Master in Saudi Arabia with Oracle RAC Expert, Oracle 8i, 9i and 10g OCP DBA and Oracle ACE credentials.Past one year and so, I have been largely working with Oracle RAC environment that includes successful 8 node production, 6 node development RAC setups on HPUX Itaninum with EMC DMX SAN Storage.
I am one of the regular contributor at Oracle forums, oracle freelist group and occasionally writes up at my blog. I am currently engaged in writing an Oracle 11g RAC book which is due by end of this December.
You can reach me at sjaffarhussain at gmail.com
I am Md Aamir Shadani, I have completed my Engineering in 2008. I want a Job in oracle DBA field. Hope somebody could help me for dba Job.If any one are working in Gulf and have any position in oracle dba on his company please help to find the job.
Hi Sayed,
How are you...must be busy for your new Book.......someone hacked my gmail account...this is my new gmail ID(priyadarshi.oracledba@gmail.com)......I don't have your gmail ID...pls put a mail to my gmail....
thanks for reply i agree with your comments thanks for help. just visit following OTN link saying the same as u said
http://forums.oracle.com/forums/message.jspa?messageID=3460371
Hello to all
Last month I have been assigned an assignment to work on RAC. Our application is a data ware housing and we striving for performance. Our high management orders me to implement Rac for performance. I have started work on RAC. And submit my finding. I found that RAC is slower on VMware software
We have installed the oracle RAC software on the followings:
Two VM machines (with 4 GB ram each, 1 Processor each with hard drive space 50Gb each)
Two Physical machines with following specs:
• Intel Core 2 Duo (2.0 GHZ)
• 2 GB ram each
• 80 GB SATA Hard Drive each
• One Shared Drive on network (SATA 80 GB)
• Two LAN card on each system (1 Giga bits each). One for private and other for public.
o VM Performance Issues
We are facing following issues on VM machines:
• Slow I/O (Very slow loading and execution performance)
• CPU was on 100 % without any activity
• The VM machines were on a single server thus they were sharing the same physical hard drive and LAN cards
But today my Boss sends me an article in which claim that RAC is faster on VMWARE software instead of Physical machine. Now I have to answer to higher management. I could not understand what I said. Becoz during my experiment it perform very poor. Plz help me or suggest me what is your opinion. I’m waiting for your reply
Link of article
http://www.channelregister.co.uk/2009/05/08/oracle_vmware/ ?