Oracle/Linux performance

Oracle mentions Red Hat, Suse, and TurboLinux in its tech docs. Has anyone used more than one of these and done any performance tests. How about general reliability comparisons? We are also interested in how well their support depts handle real problems.
Thanks.

976963 wrote:
No, It is not only about RMAN Slow performance, But that's what you are describing as your issue.
Please advice me your suggestions to improve RMAN backup performance I have no clue as to how to investigate RMAN functionality. I've never use the software nor expect ever to use it. However I do recognize OS and Hardware issues and that is why I'm the primary moderator in those OS and Hardware forums.
By the way, you have a simultaneous post already in the Linux forum
Slow IO Performance in Oracle uek 64bit kernel
which might be a duplicate representation of this same issue.
For the future, consider that such multi-posting is frowned upon.
Leave this thread here.
Use that thread to investigate OS issues and only OS issues.

Similar Messages

Very poor performance on oracle linux 6.3 on virtual-box 4.2

Dear all,
I installed an oracle linux 6.3 on vbox VM (2 gb RAM, 20 gb disk): the installation took a long time and after, I faced poor performance and big latency.
One bug reported:
WARNING: at kernel/time/clockevents.c:47 clockevent_delta2ns+0x79/0x90()
Hardware name: VirtualBox
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.39-200.24.1.el6uek.x86_64 #1
Call Trace:
[<ffffffff8106ad1f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8106ad7a>] warn_slowpath_null+0x1a/0x20
[<ffffffff8109d649>] clockevent_delta2ns+0x79/0x90
[<ffffffff819b8427>] calibrate_APIC_clock+0xeb/0x2f6
[<ffffffff819b874c>] setup_boot_APIC_clock+0x59/0x7e
[<ffffffff819b8336>] APIC_init_uniprocessor+0xfc/0x102
[<ffffffff819b60fc>] smp_sanity_check+0x69/0x145
[<ffffffff819b62fd>] native_smp_prepare_cpus+0x125/0x215
[<ffffffff819a776b>] kernel_init+0x1c9/0x2a8
[<ffffffff8150edc4>] kernel_thread_helper+0x4/0x10
[<ffffffff819a75a2>] ? parse_early_options+0x20/0x20
[<ffffffff8150edc0>] ? gs_change+0x13/0x13
I upgraded memory to 4 gb RAM but it was on vain
Please, any idea so far ?
Best Regards

I can confirm that there is no issue with Virtualbox 4.2 and Oracle Linux 6.3. I use it all the time. Performance should be near native and some aspects like disk I/O may even be faster. Your problem could be insufficient hardware, like missing x86_64 or hardware virtualization support. However, like rukbat wrote, this is not the right forum to discuss Virtualbox and your computer hardware here. I suggest to start with the Virtualbox documentation to verify your hardware is sufficient.
https://www.virtualbox.org/manual/ch10.html#hwvirt
https://www.virtualbox.org/manual/ch14.html

Oracle Linux Exam Help!

Hello!
I will kindly ask for your honest opinions as I want to study for an Oracle Linux exam and I need to get the below indicated topics covered, but unfortunately I could not find a book to cover them all (as I did for Oracle 11g).
Please help me locate a book, two or how many are necessary to help me study for the exam and cover the following topics:
Thank you all!
Installing Enterprise Linux
Install Enterprise Linux on any supported architecture.
Create partitions, software RAID and LVM storage configurations.
Select Packages for Installation.
PC Hardware & Linux
Get detailed information about all PCI & USB devices that are connected to a Linux system
Identify, load, unload and configure kernel modules
Tune the running kernel using the /proc/ filesystem
Post-Install System Configuration
Set and maintain the system clock with date, hwclock and NTP
Install, update and remove RPM packages with the rpm & yum commands
Configure printers with CUPS
Create and use Kickstart files for automated, hands-off installations
Boot Process & SysV Init
Configure the GRUB boot loader
Manage SysV Init scripts, including customizing files under the /etc/sysconfig/ directory to tune SysV Init scripts
Configure and use SysV runlevels
Shutdown & reboot Linux systems
User/Group Administration and NFS
Describe and apply the User Private Group scheme
Create, delete and configure user and system accounts
Create, delete and configure groups
Customize the PAM configuration
Configure and control access to su and sudo
Configure Linux systems to use centralized authentication and user information stores for system logins
Implement a file server to share files with NFS v3 & v4
Configure the automounter (autofs) allowing un-privileged users to mount filesystems on-demand
Filesystem Administration
Work with device nodes and udev
Partition hard drives after installation
Create and tune filesystems
Mount filesystem, including persistent configuration in the /etc/fstab file
Create, manage and tune swap devices
Configure, manage, assign and maintain quotas on filesystems
Create, use and remove File Access Control Lists (FACLs)
LVM & Raid
Configure Logical Volume Manager volume groups and logical volumes
Create and use software RAID devices
Grow and shrink logical volumes and the filesystems on them
Use LVM snapshots to create consistent, reliable backups
Task Automation & Process Accounting
Use the at & batch facilities to run one-time tasks
Manage cron jobs for recurring tasks, both system-wide and per-user
Configure syslog for central system logging
View, manage and kill running processes
Monitor system and application logs on a daily basis with logwatch
Configure process accounting and examine the resulting logs
Limiting and measuring resource usage (ulimit, pam, sar, vmstat, iostat)
Client Networking
Configure TCP/IP networking on Linux systems
Configure static routing on a Linux system
Aggregate multiple network links into a single interface via the bonding driver's Etherchannel and 802.3ad support
Configure a Linux system to participate in multiple VLANs on a managed switch via 802.1q frame tagging
Configure and maintain a DHCP server
Using networking diagnostics tool (ping,arp,ethtool)
Enterprise Linux Fundamentals
What is Linux?
Identify the origins of UNIX and how Linux is related to UNIX
Describe the major goals of the Free Software Foundation and the GNU project
List key elements of a Linux distribution and name several distributions
List several standards that apply to Linux
Describe the basic mechanisms that make UNIX so powerful
Multi User Concepts
Describe the differences between the administrative (root) user and normal user accounts and explain when each should be used
Log into the system
Switch between accounts using the 'su' command
Use basic commands to gather information about the system
Use system help facilities to learn about commands and their options.
The Linux File System
List the standard system directories and explain what type of files are contained in each
Navigate the file system
Explain standard POSIX file permissions including special permissions such as the SUID, SGID and Sticky bits on both files and directories
Change permissions of files
Explain how file ownership (user: group) relates to file permissions
Change ownership of files
Describe how the User Private Group (UPG) scheme works and the problem it solves
Manipulating Files
Be able to create, delete, copy, move and rename files and directories
Describe the various types of files that can be stored on UNIX and Linux file systems
Explain hard links and symbolic links, their pros & cons and when & where they can or can not be used
Identify the type of content of any file
View the contents of both text-based and binary files
Search the file system for files and directories with specific properties
Text Processing
Search inside of files for specified information
Perform file editing, sorting, cutting & merging text files from the command linee
Shell Basics
Understand the varied roles the command shell plays in everyday UNIX/Linux usage
Pipe several commands together to perform more complex and useful processing
Use file redirection on the command line
Create and use shell and environment variables to configure and control the operation of the system, the command shell and programs
Use and escape special characters when they are used on the command line
Regular Expressions Construct regular expressions for matching text patterns
Archiving and Compression
Use tar & cpio to create archives and extract files from them
Compress and decompress files using the UNIX compress, GNU gzip, bzip2 and zip formats
Text Editing
Use simple text editors like pico and nano
Perform basic and intermediate text editing functions efficiently with vi & Vim
Perform basic and intermediate text editing functions with GNU Emacs
Command Shells
List the history and relationships of the various popular shell implementations available on UNIX and Linux systems
Identify and switch between the various shell implementations
Customize the command prompt on Bourne and BASH shells
Use command line history, command completion, aliases and command line editing
Customize command shell operation system wide and for individual users
Introduction to Shell Scripting
Process arguments passed into a shell script
Get input from the user of a shell script
Generate formatted output from a shell script
Perform tasks conditionally using if, case and while loops in a shell script
Perform repeated actions over a set of values with for loops on the command line and within shell scripts
Do math in a shell script
Process Management and Job Control
Describe the differences between process and threads
Find and control running programs with ps, top, kill, and nice
Use the jobs, fg and bg commands to view and access several tasks at once on a single shell
Use the screen command to run several programs and disconnect from running programs on remote systems
Messaging
Send local messages with the write and wall commands
Use talk and ytalk to chat with other users
Send and read email with the mail and pine commands
The Secure Shell
Configure the ssh client and sshd server programs securely
Establish secure, remote connections to other systems
Use SSH's key-based authentication
Managing Software
Find and download software via FTP & HTTP with text & graphical client programs like wget, lftp, links, Konqueror and Mozilla Firefox
Install binary programs in RPM packages
List software already installed on the system with RPM
Compile and install software from source releases
Compile and install software from a source RPM (SRPM or .src.rpm) package
Printing
Use CUPS to connect to available local and network printers
Use various commands to process and convert files in preparation for printing
Send jobs to a printer
Monitor and remove print jobs
Mounting FileSystems and Managing Removable Media
Use the mount command
Access NFS and SMB filesystems over the network
Use autofs for on-demand mounting of filesystems without root privileges
X Window System
Start the graphical environment manually
Select different desktop environments
Launch graphical applications
Use Linux as an X terminal
Customize the graphical environment and auto-start applications at login and X startup
Securely tunnel remote graphical applications through SSH

Hello!
I will kindly ask for your honest opinions as I want to study for an Oracle Linux exam and I need to get the below indicated topics covered, but unfortunately I could not find a book to cover them all (as I did for Oracle 11g).
Please help me locate a book, two or how many are necessary to help me study for the exam and cover the following topics:
Thank you all!
Installing Enterprise Linux
Install Enterprise Linux on any supported architecture.
Create partitions, software RAID and LVM storage configurations.
Select Packages for Installation.
PC Hardware & Linux
Get detailed information about all PCI & USB devices that are connected to a Linux system
Identify, load, unload and configure kernel modules
Tune the running kernel using the /proc/ filesystem
Post-Install System Configuration
Set and maintain the system clock with date, hwclock and NTP
Install, update and remove RPM packages with the rpm & yum commands
Configure printers with CUPS
Create and use Kickstart files for automated, hands-off installations
Boot Process & SysV Init
Configure the GRUB boot loader
Manage SysV Init scripts, including customizing files under the /etc/sysconfig/ directory to tune SysV Init scripts
Configure and use SysV runlevels
Shutdown & reboot Linux systems
User/Group Administration and NFS
Describe and apply the User Private Group scheme
Create, delete and configure user and system accounts
Create, delete and configure groups
Customize the PAM configuration
Configure and control access to su and sudo
Configure Linux systems to use centralized authentication and user information stores for system logins
Implement a file server to share files with NFS v3 & v4
Configure the automounter (autofs) allowing un-privileged users to mount filesystems on-demand
Filesystem Administration
Work with device nodes and udev
Partition hard drives after installation
Create and tune filesystems
Mount filesystem, including persistent configuration in the /etc/fstab file
Create, manage and tune swap devices
Configure, manage, assign and maintain quotas on filesystems
Create, use and remove File Access Control Lists (FACLs)
LVM & Raid
Configure Logical Volume Manager volume groups and logical volumes
Create and use software RAID devices
Grow and shrink logical volumes and the filesystems on them
Use LVM snapshots to create consistent, reliable backups
Task Automation & Process Accounting
Use the at & batch facilities to run one-time tasks
Manage cron jobs for recurring tasks, both system-wide and per-user
Configure syslog for central system logging
View, manage and kill running processes
Monitor system and application logs on a daily basis with logwatch
Configure process accounting and examine the resulting logs
Limiting and measuring resource usage (ulimit, pam, sar, vmstat, iostat)
Client Networking
Configure TCP/IP networking on Linux systems
Configure static routing on a Linux system
Aggregate multiple network links into a single interface via the bonding driver's Etherchannel and 802.3ad support
Configure a Linux system to participate in multiple VLANs on a managed switch via 802.1q frame tagging
Configure and maintain a DHCP server
Using networking diagnostics tool (ping,arp,ethtool)
Enterprise Linux Fundamentals
What is Linux?
Identify the origins of UNIX and how Linux is related to UNIX
Describe the major goals of the Free Software Foundation and the GNU project
List key elements of a Linux distribution and name several distributions
List several standards that apply to Linux
Describe the basic mechanisms that make UNIX so powerful
Multi User Concepts
Describe the differences between the administrative (root) user and normal user accounts and explain when each should be used
Log into the system
Switch between accounts using the 'su' command
Use basic commands to gather information about the system
Use system help facilities to learn about commands and their options.
The Linux File System
List the standard system directories and explain what type of files are contained in each
Navigate the file system
Explain standard POSIX file permissions including special permissions such as the SUID, SGID and Sticky bits on both files and directories
Change permissions of files
Explain how file ownership (user: group) relates to file permissions
Change ownership of files
Describe how the User Private Group (UPG) scheme works and the problem it solves
Manipulating Files
Be able to create, delete, copy, move and rename files and directories
Describe the various types of files that can be stored on UNIX and Linux file systems
Explain hard links and symbolic links, their pros & cons and when & where they can or can not be used
Identify the type of content of any file
View the contents of both text-based and binary files
Search the file system for files and directories with specific properties
Text Processing
Search inside of files for specified information
Perform file editing, sorting, cutting & merging text files from the command linee
Shell Basics
Understand the varied roles the command shell plays in everyday UNIX/Linux usage
Pipe several commands together to perform more complex and useful processing
Use file redirection on the command line
Create and use shell and environment variables to configure and control the operation of the system, the command shell and programs
Use and escape special characters when they are used on the command line
Regular Expressions
Construct regular expressions for matching text patterns
Archiving and Compression
Use tar & cpio to create archives and extract files from them
Compress and decompress files using the UNIX compress, GNU gzip, bzip2 and zip formats
Text Editing
Use simple text editors like pico and nano
Perform basic and intermediate text editing functions efficiently with vi & Vim
Perform basic and intermediate text editing functions with GNU Emacs
Command Shells
List the history and relationships of the various popular shell implementations available on UNIX and Linux systems
Identify and switch between the various shell implementations
Customize the command prompt on Bourne and BASH shells
Use command line history, command completion, aliases and command line editing
Customize command shell operation system wide and for individual users
Introduction to Shell Scripting
Process arguments passed into a shell script
Get input from the user of a shell script
Generate formatted output from a shell script
Perform tasks conditionally using if, case and while loops in a shell script
Perform repeated actions over a set of values with for loops on the command line and within shell scripts
Do math in a shell script
Process Management and Job Control
Describe the differences between process and threads
Find and control running programs with ps, top, kill, and nice
Use the jobs, fg and bg commands to view and access several tasks at once on a single shell
Use the screen command to run several programs and disconnect from running programs on remote systems
Messaging
Send local messages with the write and wall commands
Use talk and ytalk to chat with other users
Send and read email with the mail and pine commands
The Secure Shell
Configure the ssh client and sshd server programs securely
Establish secure, remote connections to other systems
Use SSH's key-based authentication
Managing Software
Find and download software via FTP & HTTP with text & graphical client programs like wget, lftp, links, Konqueror and Mozilla Firefox
Install binary programs in RPM packages
List software already installed on the system with RPM
Compile and install software from source releases
Compile and install software from a source RPM (SRPM or .src.rpm) package
Printing
Use CUPS to connect to available local and network printers
Use various commands to process and convert files in preparation for printing
Send jobs to a printer
Monitor and remove print jobs
Mounting FileSystems and Managing Removable Media
Use the mount command
Access NFS and SMB filesystems over the network
Use autofs for on-demand mounting of filesystems without root privileges
X Window System
Start the graphical environment manually
Select different desktop environments
Launch graphical applications
Use Linux as an X terminal
Customize the graphical environment and auto-start applications at login and X startup
Securely tunnel remote graphical applications through SSH
How about posting this question in the Certification Forum
Since Oracle Linux is based on Red Hat Enterprise Linux, you can use and search "RHEL books". There should some.

How to configure Oracle Linux 6.5 to request ip address from dhcp server

I have installed Oracle Linux 6.5 (minimal installation) on a virtual machine created on VMware vSphere 5.5. I have tried to configure dhcp during the installation by editing IPv4 Settings of System eth0 to use Automatic (DHCP) but somehow it does not work.
Then I changed the ifcfg-eth0 to use static ip address and that works.
Here is the content of /etc/sysconfig/network:
NETWORKING=yes
HOSTNAME=TESTOL
Here is the content of /etc/sysconfig/network-scripts/ifcfg-eth0 using static ip address:
DEVICE=eth0
TYPE=Ethernet
UUID=xxxxxxxx.xxxx-xxxx-xxxxxxxxxxxx
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
HWADDR=xx:xx:xx:xx:xx:xx
IPADDR:##.##.###.###
PREFIX=24
GATEWAY=##.##.###.###
DNS1=##.##.###.###
DOMAIN:test.com
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
Based on my understanding, I should able to use dhcp by changing ifcfg-eth0 (I commented the parameters not needed for dhcp by adding #) but I have tried the following ifcfg-eth0 and it does not work:
DEVICE=eth0
TYPE=Ethernet
UUID=xxxxxxxx.xxxx-xxxx-xxxxxxxxxxxx
ONBOOT=yes
NM_CONTROLLED=yes
#BOOTPROTO=no
BOOTPROTO=dhcp
HWADDR=xx:xx:xx:xx:xx:xx
#IPADDR:##.##.###.###
#PREFIX=24
#GATEWAY=##.##.###.###
DNS1=##.##.###.###
#DOMAIN:test.com
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
I have also tried to add GATEWAY=##.##.###.### to /etc/sysconfig/network but that does not help.
I have checked that dhclient package is installed by using rpm -qa dhclient.
I'm new to Linux.
Thanks for any help

If this is your first experience with Oracle Linux, I recommend you perform a default installation instead of going minimal, which is just going to make things more difficult for no good reason. Enterprise Linux is not MS Windows and the difference between default and minimal installations do not compare.
You also do not want to use the rpm utility to install any software and use yum instead. The yum utility is standard. Rpm does not resolve software dependencies.
Your ifcfg-eth0 script is missing the line that specifies to use DHCP:
BOOTPROTO=dhcp
You can also use the network configuration utility, even in text mode, by typing the following at the command prompt of root:
system-config-network
If the above utility is not installed:
yum install system-config-network-tui
You will have to configure an appropriate yum repository file. The process is explained in the Oracle Linux release notes:
https://oss.oracle.com/el6/docs/RELEASE-NOTES-U5-en.html
See 3.2.3. About Oracle Linux Installation Media
Then insert the DVD or attach the DVD iso image to your virtual machine and mount it as following:
mkdir -p /media/ISOimage
mount /dev/cdrom /media/ISOimage
The path "/media/ISOimage" should be the same as you specified in the yum repository file.
After that you can use the yum utility to list or install software.

OS Package Error while installing SOA 11.1.1.5.0 on Oracle Linux

Hi,
I am trying to install SOA Suite 11.1.1.5.0 on Linux Environment.
While doing the prerequisite checks, I am getting some errors wrt operating system packages and kernel parameters.
The queries I have is:
1) If these packages are not installed, will it have some adverse effect on my installation?
2) Also, how from where can I download these packages and how do I install them?
OS Version is: Oracle Linux 5 Update 7
The log for the prerequisite checks is pasted below:
Root
Checking operating system certification
Expected result: One of enterprise-5.4,enterprise-4,enterprise-5,redhat-5.4,redhat-4,redhat-5,SuSE-10,SuSE-11
Actual Result: enterprise-5.4
Check complete. The overall result of this check is: Passed
Checking recommended operating system packages
Checking for gcc-4.1.0-28.4; found gcc-4.1.2-51.el5-i386.           Passed
Checking for gcc-c++-4.1.0-28.4; found gcc-c++-4.1.2-51.el5-i386.           Passed
Checking for setarch-1.6-1; found setarch-2.0-1.1-i386.   Passed
Checking for sysstat-5.0.5-1; Not found. Failed <<<<
Checking for libstdc++-4.1.0-28.4; found libstdc++-4.1.2-51.el5-i386.        Passed
Checking for libstdc++-devel-4.1.0-28.4; found libstdc++-devel-4.1.2-51.el5-i386. Passed
Checking for compat-libstdc++-296-2.96-132.7.2; found compat-libstdc++-296-2.96-138-i386.         Passed
Checking for compat-db-4.1.25-9; Not found.      Failed <<<<
Checking for control-center-2.8.0-12; found control-center-1:2.16.0-16.el5-i386. Passed
Checking for glibc-common-2.3.4-2.9; found glibc-common-2.5-65-i386.   Passed
Checking for binutils-2.16.91.0.5-23.4; found binutils-2.17.50.0.6-14.el5-i386.      Passed
Checking for make-3.80-202.2; found make-1:3.81-3.el5-i386.    Passed
Check complete. The overall result of this check is: Failed <<<<
Problem: Some recommended packages are missing (see above).
Recommendation: You may actually have installed packages which have obsoleted these, in which case you can successfully continue with the install. If you have not, it is recommended that you do not continue. Refer to the product release notes to find out how to get the missing packages and update the system.
Checking kernel parameters
Checking for VERSION=2.6.18; found VERSION=2.6.18-274.el5xen.           Passed
Checking for hardnofiles=4096; hardnofiles=1024.            Failed <<<<
Checking for softnofiles=4096; softnofiles=1024. Failed <<<<
Check complete. The overall result of this check is: Failed <<<<
Problem: The kernel parameters do not meet the minimum requirements (see above).
Recommendation: Perform operating system specific instructions to update the kernel parameters.
Checking Recommended glibc version
Expected result: ATLEAST=2.5-12
Actual Result: 2.5-65
Check complete. The overall result of this check is: Passed
Checking physical memory
Expected result: 1024MB
Actual Result: 3336MB
Check complete. The overall result of this check is: Passed
Any help will be appreciated.
Cheers,
Varun

Hi Avi,
Thanks for your reply.
I was able to install the packages, not eactly the same way as u told but I downloaded them from http://public-yum.oracle.com/ and installed them manually. Was also able to change parameters.
And Bingo, there was no pre-requisite failures while installing SOA.
One of the probs that I'm facing now is that when I try to access the WLS Console of SOA after creating domain, I'm able to open it on the local machine using IP and localhost. But it doesn't work the same way when I use hostname. It gives an error saying No Route to the Host. Also I'm not able to access WLS Console from any other machine using IP address of the machine.
Any inputs that can be of any help.
Cheers,
Varun

Poor SSD disk IO speed in Oracle Linux 6.3 (Windows migration)

Hello,
I am trying to migrate from Windows to Oracle Linux, but I'm seeing very poor disk IO speeds. It's probably a tuning thing, but I'm relatively new to Oracle Linux and could use some detailed advice.
I took one physical server and migrated it from Windows 2008R2 to Oracle Linux 6.3 while maintaing the same Oracle version (11.2.0.3 Enterprise with ASM) and the same hardware (quad CPU 48 core HP DL585 G7 with 128GB RAM, 7 LSI 9200-8e HBAs, 28 Samsung SSD Drives). Disk IO performance, as measured using Oracle IO Calibration, was ~7,800MB/Second and 440K IOPS under windows but fell to ~2,400MB/Second and 250K IOPS under Linux.
Oracle Linux and the DB were installed using default values. The Oracle tools seem to have done a great job setting all of the obvious IO tuning parameters like the scheduler, but I figure that there are other important IO-related OS or DB parameters and that I have failed to configure the system properly.
My goal for the migration is sequential read IO speed and I would have bet money that Linux would provide better performance than Windows. I still think that it should. What basic IO tuning should I do for Oracle Linux using ASM and SSD drives?
Thank you!
Some details:
Oracle DB 11.2.0.3 enterprise installed via the GUI with the "Data Warehousing" template
ASM - single disk group, 28 SSD disks, AU=4MB
Oracle memory: Automatic memory management, 64GB allocated
Non-default Oracle params: filesystemio_options=setall, disk_asynch_io=true
Edited by: 975524 on Dec 7, 2012 8:56 AM

Thanks "dude" for the advice. Unfortunately, I am still seeing low IO speeds.
The default scheduler for OEL 6.3 with the DB pre-install package is deadline, which seemed like a far better choice than CFS. Based on your advice, I tried noop this morning and got the same results. I also tested with and without hugepages and saw only a small difference - at least in IO speed - I did not test overall DB performance. Lastly, I understand the /dev/shm issue, but even with the default configuration I'm getting 64MB allocated to Oracle, which is far more than is needed to test sequential IO - in fact I can get better results by using less RAM.
To answer your questions, I am testing using Oracle IO Calibration, which is an IO testing feature of the Oracle DB that is similar to the standalone Oracle Orion tool. I also performed a few tests using IOMeter, but found that the Linux version of that product was not giving me consistent data. The overall trend was the same however - IO on the Linux version far lower than the same hardware running Windows. The system is functioning very well, so I assume that everything has been installed correctly, but I do not think that it was installed optimally - thus my cry for help.
I am so surprised that Linux is showing slow IO!
Edited by: 975524 on Dec 7, 2012 9:22 AM

Oracle apps performance tunning

Hey
could u any one tell me where i will get the Oracle Apps Performance
Tunning on Module wise like OM/AP/AR.
how to verify that my oracle Apps[11.5.10] instance running fine on linux based !!
i need check list Oracle Apps Performance !!

best would be to start with http://docs.oracle.com/cd/E11882_01/server.112/e16638/toc.htm
Regards
Karan

Oracle Linux 6 and Oracle DB for ERP System

All,
I have a few questions about using Oracle Linux 6 and the Oracle Database for our ERP Server. We are using a System that run off of Appache httpd and Tomcat and connects to an Oracle Database. We currently are running as a hardware installed server, with Oracle Linux 5 and 10gR2. We are looking to migrate to a Virtual environment as we run VMWare for all our other Servers and services. I have started the install of a development/test system. I wanted to install Oracle Enterprise Linux 6 x86_64 along with either 10gR2 or 11gR2. I noticed that 10gR2 was not certified on OEL6 hence why the thought of moving to 11gR2. The one issue I have is the ERP system is not a x86_64 system is there any way of running 32 bit apps on a 64bit OEL install? I would need to compile a few small 32bit C code programs so would need 32bit libs to compile against. Any support would be greatly appreciated. I know that OEL has an i386 install but I also know that the x86_64 has more support for Oracle DB.
P.S.
Our ERP System is programmed via a small company that does not certify anything. They have taken the approach if it works it works (not happy with this but it is what it is). So the main issue is I need to get Appache Httpd, Tomcat running along with ability to compile a few small 32bit apps.
Edited by: Rever75 on May 7, 2012 1:45 PM

x86-64 is an extension of the x86 32-bit CISC instruction set. The 64-bit extension provides support for long mode to address larger virtual and physical address spaces.
You can generally run 32-bit applications on a x86_64 bit CPU and a x86_64 kernel, provided you have the appropriate i386 libraries installed. When you install Oracle 11gR2 11.2.0.1 for x86_64, appropriate i386 libraries are a prerequisite.
Since x86 on a x86_64 CPU is still hardware, there will be no performance penalty to run 32-bit application. Btw, you cannot run 64-bit applications using a i386 kernel. The only exception I know is Mac OS X.

Oracle Linux 6.2 with RH compatible kernel .versus. Red Hat Linux 6.2 diff?

Hello everyone
* assume that I booted Oracle Linux 6.2 with a Red Hat Compatible Kernel - as opposed to booting the Oracle Linus 6.2 with UEK R1 or UEK R2 kernels *
I am interested in any feature differences between the two OS relating to: functionality, reliability, performance, stability and tools.
The reason I ask is that my employer is trying to figure out if OL 6.2 with a RH compatible kernel is identical to the RHEL 6.2 OS, if we excluded the Oracle UEK and Oracle clustering extra functionality.
This OS will not be used to run Oracle 11g R2 database, this is to be used for any other Linux based non-database applications (such has running Java, JDBC, Apache, C/C++, etc).
many thanks
Yuri

yurib wrote:
So now I can tell them to use Oracle Linux 6.x with a RH compatible kernel for all those non-DB systems and use OL 6.x with UEK for Oracle 11g database.
And I remember there was (still is?) a third kernel, which does not contain new features or performance enhancements, but only bug fixes for the RH compatible kernel.
I am not sure if you are going to need it, but it can be very useful in some cases. For example, if there is a bug in the RH kernel, and you don't want to run the UEK line as you want to stick to 100% strict RHEL compatibility, then Oracle can put the fix into this 3rd bug-fix only RH compatible kernel series.
(For me, I've set up dual-boot UEK & standard RHEL kernels on my machines and never have never encountered issues or bugs.)
>
Many thanks, as always
Yuri

Oracle Linux 6.3 - restarts on shutdown

Hi All,
I installed Oracle Linux 6.3 on a standalone laptop. I updated it fully. Installed Oracle Database11gR2 and everything works perfect The OS reboots on shutdown command. There is no "wake up on LAN" or "Automatic Power Up". Checked BIOS - didn't find anything.
Didn't find any answer in google too.
Any help would be sincerely appreciated.
Regards

Hi Thilina,
Please confirm you have installed all the rpms mentioned as per the notes provided by Hussein. Please verify whether you have installed all the rpms mentioned in the per-requisite setup by command:
rpm -qa | grep <rpm_name>*
In addition, please upgrade your rapidwiz when installing especially on OEL 6 as most of the issues are addressed in the latest rapidwiz and perform a fresh installation.:
https://blogs.oracle.com/stevenChan/entry/new_rapid_install_startcd_12
Please also provide the output of:
find / -name libclntsh* (as root user)
A workaround is mentioned in this site, Please check whether this helps you and let us know:
Installation of Oracle R12.1.1 on Linux 64 bit machine | Oracle Application Technology
Thanks &
Best Regards,

Parameters of NFS in Solaris 10 and Oracle Linux 6 with ZFS Storage 7420 in cluster without database

Hello,
I have ZFS 7420 in cluster and OS Solaris 10 and Oracle Linux 6 without DB and I need mount share NFS in this OS and I do not know which parameters are the best for this.
Wich are the best parameters to mount share NFS in Solaris 10 or Oracle Linux 6?
Thanks
Best regards.

Hi Pascal,
My question is because when We mount share NFS in some servers for example Exadata Database Machine or Super Cluster for best performance we need mount this shares with specific parameters, for example.
Exadata
192.168.36.200:/export/dbname/backup1 /zfssa/dbname/backup1 nfs rw,bg,hard,nointr,rsize=131072,wsize=1048576,tcp,nfsvers=3,timeo=600 0 0
Super Cluster
sscsn1-stor:/export/ssc-shares/share1 - /export/share1 nfs - yes rw,bg,hard,nointr,rsize=131072,wsize=131072,proto=tcp,vers=3
Now,
My network is 10GBE
What happen with normal servers only with OS (Solaris and Linux)?
Which parameters I need use for best performance?
or are not necessary specific parameters.
Thanks.
Best regards.

Create dblink in Oracle/Linux (RHEL4) to MS SQL Server/Windows?

Hi,
Can anyone share me the procedure to Create dblink in Oracle/Linux (RHEL4) to MS SQL Server/Windows?
Thanks

Hi,
to access non-Oracle systems you must use Oracle Heterogeneous Services.
You have to follow the instructions from Heterogeneous Connectivity Administrator's Guide to perform it.
Regs,
Acr

Oracle Linux

what would be the advantages, and hence disadvantages
of using oracle linux over redhat for oracle database 11g
production site?
thanks

From what I can gather there are only advantages. For instance:
- One and the same vendor for OS and Database support, no finger pointing.
- ULN subscription for patches and errata support has better cost/benefit compared to Red Hat.
- Public yum repository.
- OS distributions and updates are freely available.
- More modern and optimized kernel for Oracle, but also installing original Red Hat kernel.
- Oracle-validated package to perform prerequisites for Database installation.

OBIEE 11.1.1.6 failed to install on Oracle Linux 6.2

Hi all,
When I install the OBIEE 11.1.1.6 64bit on Oracle Linux 6.2, it failed at creation domain.
[2012-05-29T16:41:17.953+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] Begining Oracle Fusion Middleware Configuration ...
[2012-05-29T16:41:18.042+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] ENTRY ASDomain.createDomain
[2012-05-29T16:41:18.042+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] ENTRY ASDomain.createDomain
[2012-05-29T16:41:18.044+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] reportStartConfigAction: ENTRY........
[2012-05-29T16:41:18.045+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] reportStartConfigAction: eventStatus........oracle.as.provisioning.engine.ConfigEventStatus@76c20307
[2012-05-29T16:41:18.045+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] reportStartConfigAction: 2........
[2012-05-29T16:41:18.047+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] reportStartConfigAction: Set the Extion Id to START........
[2012-05-29T16:41:18.047+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] reportStartConfigAction: Did the assignment...
[2012-05-29T16:41:18.048+08:00] [as] [NOTIFICATION] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] reportStartConfigAction: EXIT........
[2012-05-29T16:41:18.056+08:00] [as] [ERROR] [] [oracle.as.provisioning] [tid: 36] [ecid: 0000JUNkP6DFw000jzwkno1Fl8Qk00000R,0] [[
oracle.as.provisioning.exception.ASProvWorkflowException: Error Executing workflow.
at oracle.as.provisioning.engine.WorkFlowExecutor._createDomain(WorkFlowExecutor.java:686)
at oracle.as.provisioning.engine.WorkFlowExecutor.executeWLSWorkFlow(WorkFlowExecutor.java:391)
at oracle.as.provisioning.engine.Config.executeConfigWorkflow_WLS(Config.java:866)
at oracle.as.install.bi.biconfig.standard.StandardWorkFlowExecutor.executeHelper(StandardWorkFlowExecutor.java:31)
at oracle.as.install.bi.biconfig.standard.DomainProvisioningTask.doExecute(DomainProvisioningTask.java:48)
at oracle.as.install.bi.biconfig.standard.AbstractProvisioningTask.execute(AbstractProvisioningTask.java:70)
at oracle.as.install.bi.biconfig.standard.StandardProvisionTaskList.execute(StandardProvisionTaskList.java:61)
at oracle.as.install.bi.biconfig.BIConfigMain.doExecute(BIConfigMain.java:113)
at oracle.as.install.engine.modules.configuration.client.ConfigAction.execute(ConfigAction.java:371)
at oracle.as.install.engine.modules.configuration.action.TaskPerformer.run(TaskPerformer.java:88)
at oracle.as.install.engine.modules.configuration.action.TaskPerformer.startConfigAction(TaskPerformer.java:105)
at oracle.as.install.engine.modules.configuration.action.ActionRequest.perform(ActionRequest.java:15)
at oracle.as.install.engine.modules.configuration.action.RequestQueue.perform(RequestQueue.java:64)
at oracle.as.install.engine.modules.configuration.standard.StandardConfigActionManager.start(StandardConfigActionManager.java:160)
at oracle.as.install.engine.modules.configuration.boot.ConfigurationExtension.kickstart(ConfigurationExtension.java:81)
at oracle.as.install.engine.modules.configuration.ConfigurationModule.run(ConfigurationModule.java:86)
at java.lang.Thread.run(Thread.java:662)
The /etc/hosts is like
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
127.0.0.1 demo.bchk.com demo
Thanks.
BCHK

Hi Devarasu,
According to the matrix, Oracle Linux 6 64bit is supported for OBIEE 11.1.1.6 64bit, am I right?
ALL     11gR1 (11.1.1.5+)     x64     Oracle Linux 6 (UL1+)      64 bit     64 bit     n/a     Oracle JDK 1.6.0_30+     Oracle JDK 1.6.0_30+     64 bit     "Oracle 10.2.0.4+
Oracle 11.1.0.7+
Oracle 11.2.0.1+"     1. Support is with UEK: Unbreakable Enterprise Kernel and Red Hat Compatible Kernel.
ALL     11gR1 (11.1.1.5+)     x64     Oracle Linux 6 (UL1+)      64 bit     64 bit     n/a     JRockit 6 Update 29 R28.2.0+     JRockit 6 Update 29 R28.2.0+     64 bit     "Oracle 10.2.0.4+
Oracle 11.1.0.7+
Oracle 11.2.0.1+"     1. Support is with UEK: Unbreakable Enterprise Kernel and Red Hat Compatible Kernel.
ALL     11gR1 (11.1.1.6+)     x64     Oracle Linux 6 (UL1+)      64 bit     64 bit     n/a     n/a     Oracle JDK 1.7.0+     64 bit     "Oracle 10.2.0.4+
Oracle 11.1.0.7+
Oracle 11.2.0.1+"     "1. JDK 7 certification is available only with WLS 10.3.6+/FMW 11.1.1.6+. Oracle does not support use of JDK 7 with WLS 10.3.1-10.3.5/FMW 11.1.1.1.0 - 11.1.1.5.0.
2..JDK 7 certification is only for server components. ODI Studio UI does not support JDK 7.
3. Support is with UEK: Unbreakable Enterprise Kernel and Red Hat Compatible Kernel."

Installing Oracle Linux 6 For 11g

I'm downloading Oracle Linux 6,2 64-bit with the single intention to simply install Oracle Database 11g Enterprise Edition and I've never used or installed Oracle Linux before. I know that in order to install Oracle 11g database, I will need to have some kind of graphic utility like X but I do not need a Desktop Environment like Gnome or KDE (which is not permitted on servers per company policy). Can someone tell me what exactly or which specific options I will need to minimally install Oracle database 11g? I don't want to install the entire DVD content to my server but rather know what packages are required and ONLY install those. I don't know if the Linux installer has a fairly self explanatory / easy to use options based on me using this system as a database server but if anyone can please help, I'd greatly appreciate it!

Sorry everyone but I've retured back from vacation to focus back on getting Oracle Database 11.2.0.3 installed on Oracle Linux 6.2 64-bit. I've got the O.S. up and I thought I selected all the correct / required packages to perform the standard installation using the Universal Installer but it's not working for some reason. I'm unable to forward my 'xclock' session from the database server host to my workstation (Ubuntu 12.04 Linux). When I open a terminal window on my Ubuntu Linux machine and type 'xclock', the application opens w/o any issues. When I SSH into my Oracle database server and attempt to forward the X11 session over to my machine, I get:
carlos@ghost:~$ ssh -x carlos@oracledb
carlos@oracledb's password:
[carlos@oracledb ~]$ xclock
Error: Can't open display:
[carlos@oracledb ~]$ logout
Connection to oracledb closed.I obviously have the application 'xclock' and all required dependencies installed but for some reason it doesn't forward from my Oracle server to my workstation so that I can start the installation...
Below is a list of all installed packages on Oracle Linux that have 'xorg-x11*' in their package header name:
[root@oracledb ~]# rpm -qa | grep -i "xorg-x11*"
xorg-x11-drv-qxl-0.0.14-13.el6_2.x86_64
xorg-x11-drv-v4l-0.2.0-4.0.1.el6.x86_64
xorg-x11-drv-savage-2.3.2-1.0.1.el6.x86_64
xorg-x11-drv-i740-1.3.2-2.0.1.el6.x86_64
xorg-x11-drv-sisusb-0.9.4-1.0.1.el6.x86_64
xorg-x11-drv-acecad-1.5.0-3.0.1.el6.x86_64
xorg-x11-xkb-utils-7.4-6.el6.x86_64
xorg-x11-apps-7.4-10.el6.x86_64
xorg-x11-drv-openchrome-0.2.904-4.el6.x86_64
xorg-x11-drv-penmount-1.5.0-2.el6.x86_64
xorg-x11-drv-nouveau-0.0.16-13.20110719gitde9d1ba.el6.x86_64
xorg-x11-drv-ati-6.14.2-7.el6.x86_64
xorg-x11-drv-mouse-1.7.0-4.el6.x86_64
xorg-x11-drv-fpit-1.4.0-2.el6.x86_64
xorg-x11-drivers-7.3-13.3.el6.x86_64
xorg-x11-xinit-1.0.9-13.el6.x86_64
xorg-x11-server-utils-7.5-5.2.el6.x86_64
xorg-x11-xauth-1.0.2-7.1.el6.x86_64
xorg-x11-utils-7.4-8.el6.x86_64
xorg-x11-drv-ati-firmware-6.14.2-7.el6.noarch
xorg-x11-server-common-1.10.4-6.el6_2.3.x86_64
xorg-x11-server-Xorg-1.10.4-6.el6_2.3.x86_64
xorg-x11-drv-r128-6.8.1-3.0.1.el6.x86_64
xorg-x11-drv-vmware-11.0.3-1.0.1.el6.x86_64
xorg-x11-drv-i128-1.3.4-1.0.1.el6.x86_64
xorg-x11-drv-trident-1.3.4-1.0.1.el6.x86_64
xorg-x11-drv-glint-1.2.5-1.0.1.el6.x86_64
xorg-x11-drv-apm-1.2.3-2.0.1.el6.x86_64
xorg-x11-drv-ast-0.91.10-1.0.1.el6.x86_64
xorg-x11-drv-siliconmotion-1.7.5-1.0.1.el6.x86_64
xorg-x11-drv-dummy-0.3.4-1.0.1.el6.x86_64
xorg-x11-drv-wacom-0.10.5-14.0.1.el6.x86_64
xorg-x11-drv-sis-0.10.3-1.0.1.el6.x86_64
xorg-x11-drv-evdev-2.6.0-2.el6.x86_64
xorg-x11-drv-synaptics-1.4.1-3.el6.x86_64
xorg-x11-drv-intel-2.16.0-1.el6.x86_64
xorg-x11-drv-mga-1.4.13-3.el6.x86_64
xorg-x11-drv-cirrus-1.3.2-2.el6.x86_64
xorg-x11-drv-mutouch-1.3.0-2.el6.x86_64
xorg-x11-drv-hyperpen-1.4.1-2.el6.x86_64
xorg-x11-drv-fbdev-0.4.2-2.el6.x86_64
xorg-x11-drv-vmmouse-12.7.0-1.el6.x86_64
xorg-x11-drv-keyboard-1.6.0-1.el6.x86_64
xorg-x11-drv-vesa-2.3.0-2.0.1.el6.x86_64
xorg-x11-drv-tdfx-1.4.3-2.0.1.el6.x86_64
xorg-x11-drv-rendition-4.2.4-1.0.1.el6.x86_64
xorg-x11-drv-mach64-6.9.0-1.0.1.el6.x86_64
xorg-x11-drv-voodoo-1.2.4-1.0.1.el6.x86_64
xorg-x11-drv-s3virge-1.10.4-2.0.1.el6.x86_64
xorg-x11-drv-xgi-1.6.0-11.0.1.el6.x86_64
xorg-x11-font-utils-7.2-11.el6.x86_64
xorg-x11-drv-void-1.4.0-1.el6.x86_64
xorg-x11-drv-aiptek-1.4.1-2.el6.x86_64
xorg-x11-drv-nv-2.1.18-2.el6.x86_64
xorg-x11-drv-elographics-1.3.0-2.el6.x86_64

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