Host dedicated to Oracle?

Hi all

I'm new to VMware and some people said when executing a database like Oracle as a virtual machine that you want to dedicate to the host of this virtual machine rather than running multiple virtual machines on a single host.

For example, I have an Oracle 11 g VM running on a dual host with image Intel processors however the virtual machine uses only 4 cores and I would use the other carrots to another Linux machine.

It's a bad habit to install other virtual machines on the same host as Oracle or other databases? Is there a good document which could clear this up for me that I can read?

Kind regards

Databases don't result take the host and make it unavailable to other virtual machines, thinking that is a database needs as resource dedicated as much as possible, which is true.  But there is a threshold known as the "consolidation ratio", which means that MULTIPLE virtual machines running what is best practice BY heart.

So if you keep the number of virtual machines at a moderate level, you should be fine.  Also the VM will not be able to take full advantage of the speed required for SQL or Oracle, in order to add more vCPU in a VM DB will not help you.

I find that just do 2 vCPU in a virtual machine is sufficient.  I even proved it recently by launching a SQL (2 vCPU through 4 drive SAS internal) tool was more than enough to support high throughput, making more than 2 vCPU had no performance increase, but adding more vCPU increases the load of the host, which will limit the number of virtual machines (and the ideal performance impact) which can work to the host.

Also do not put Oracle under Windows, if you are running Windows run SQL, Oracle should be a Linux VM.

Tags: VMware

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    applprod@Test1:/Oracle/prodappl > export DISPLAY = testserver:0.0
    applprod@Test1:/Oracle/prodappl >
    applprod@Test1:/Oracle/prodappl > xhost +.
    disabled access control, customers can connect from any host
    applprod@Test1:/Oracle/prodappl >
    applprod@Test1:/Oracle/prodappl > xclock &
    [1] 675940

    I tried the reports once again and the same error.

    I understand that you were able to run the command xclock, so in this case you must set the value of the variable DISPLAY (testserver:0.0) in the application context file, run AutoConfig and bounce the services again.

    Thank you
    Hussein

  • Performance of Oracle on Windows 7

    Hello

    Recently, I got an interesting question from a friend. In his office, he got some PC with Core i7 as processor and 6 GB memory. But these PC motherboards do support Windows XP or 7, not Windows Server 2003.

    If it installs Oracle 11 g on a Windows 7, 64-bit in a PC with these physical characteristics, number of concurrent connections can support the database? Identical to a Windows Server with less hardware power?

    For example, IIS on a Windows XP can support 10 simultaneous connections.

    I suggested to him that it might be better to install a Windows Server 2003 or 2008 on these PC, even if by default, these motherboards do not accept that o/s (you can ignore some drivers and install this server o/s anyway). But he replied me that on the PC, he wouldn't trust a Windows Server, since their motherboards where not designed for it.

    What do you think?

    Published by: user521219 on January 11, 2012 05:22

    Published by: user521219 on January 11, 2012 06:37

    user521219 wrote:

    If it installs Oracle 11 g on a Windows 7, 64-bit in a PC with these physical characteristics, number of concurrent connections can support the database? Identical to a Windows Server with less hardware power?

    For example, IIS on a Windows XP can support 10 simultaneous connections.

    Oracle Butterfly not client connections. I once, a few years ago, set up a very old desktop Dell with Oracle 9i (think it was) to MTS and developers created on a 1000 + Java connections to it.

    The number of connections that can handle an Oracle server, depends entirely on the amount of server resources and also on the connection type (shared or dedicated). Oracle Butterfly not artificially the number of connections (last he did that me with Personal Oracle 7 I remember, where it was due to licensing issues).

    Recent versions of Oracle XE, SE and EE - not such a limitation to my knowledge.

  • Must VIPs be in the file/etc/hosts?

    Must VIPs be in the file/etc/hosts?
    DB version: 11g Release 2
    Platform: Solaris 10

    Question1.
    For a RAC installation whose VIP configured in DNS server, can we the entry in the file/etc/hosts below? It will already be in the DNS server and we keep these entries in/etc/hosts only for reference. Right?

    Question2.
    In the server DNS, the IP address for the name of VIP should solve a qualified name (with monentreprise.com) as Column2 or just name of VIP (column 3) is enough or both as shown below?
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    # col1               #Col2                   #col3
    10.168.1.11   rac1-vip.mycompany.com   rac1-vip
    10.168.1.22   rac2-vip.mycompany.com   rac2-vip

    Schotzie wrote:
    Must VIPs be in the file/etc/hosts?
    DB version: 11g Release 2
    Platform: Solaris 10

    Question1.
    For a RAC installation whose VIP configured in DNS server, can we the entry in the file/etc/hosts below? It will already be in the DNS server and we keep these entries in/etc/hosts only for reference. Right?

    If you use the manual IP address Configuration (IE not to the help of GNS)
    You must set the virtual IP address in DNS file and hosts.
    http://download.Oracle.com/docs/CD/E11882_01/install.112/e24616/presolar.htm#CHDGABED

    >

    Question2.
    In the server DNS, the IP address for the name of VIP should solve a qualified name (with monentreprise.com) as Column2 or just name of VIP (column 3) is enough or both as shown below?

    #Virtual IP config
    # col1               #Col2                   #col3
    10.168.1.11   rac1-vip.mycompany.com   rac1-vip
    10.168.1.22   rac2-vip.mycompany.com   rac2-vip
    

    Short name and DOMAIN name must be resolved in DNS if you use the Directory Service in your network.

    Kind regards
    Levi Pereira

  • Homepage of database no. connect after changing PC host name

    I changed the host name of the computer recently in Windows 7 and since then, I am unable
    to connect to the oracle database home page, I tried to enter to change some iniialization oracle files, but they are
    locked. How can I save the new host name in oracle 10g XE?

    GabyPR wrote:
    I changed the host name of the computer recently in Windows 7 and since then, I am unable
    to connect to the oracle database home page, I tried to enter to change some iniialization oracle files, but they are
    locked. How can I save the new host name in oracle 10g XE?

    Hello Gaby,.

    You may need to 'operating system administrator' privileges to change these files. Run Notepad as 'administrator' file (right click and run as admin option), then open the files in Notepad.

    You can try to change the listener.ora and replace the old name to the new host, or you can simply add your old host for the 'c:\Windows\System32\drivers\etc\hosts' file name (if the old host name is not used by another computer on your network).

    Concerning

    Gokhan Atil

  • Newbie question for the Oracle application server

    Hi Master,
    a DBA I am interesting to broaden my skill with learning on the application server.
    I knew that in the past before Weblogic bought by Oracle, Oracle, always using Oracle application server.
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    Is it still useful to take Application Server 10 g or go with Weblogic. in certification path, Weblogic 10 g.
    WebLogic now replaces the Oracle application server, average abandoned Oracle Application Server?

    Please enlighten me and thank you for your help

    Lie

    Question if I go for Oracle WebLogic Server 10 g Administrator Certified Expert System it will be good to work with 11g thus?

    Make it part of the same system (now). Like WebLogic is the portal and the Jukebox, forms etc. are the records.

    What book other than the documentation that you have found the right one for learning.

    Yet to find one, Oracle documentation was OK.

    Is it better to learn the Linux or Windows version?

    Both are very well, choose the operating system you know better.

    Best regards

    mseberg

    I built my Middleware on Linux 64-bit test. Note that the 32-bit version allows to run Forms and Reports Developer.

    Beware of pre-installation tasks

    Install the Oracle database
    Linux RCU (repository creation utility)

    Database

    Use an existing database. (And it worked)

    My test was divided into four main parts: (in this order)

    Installation of the regional coordination unit
    WebLogic Server Install
    Install JRocket
    Forms and reports Install

    According to me, it took me two or three times to do things. (or at least work)

    I found myself with these URLs in the end:

    Administration Server Console http://Host/console 7001
    Enterprise Manager Console http://Host/em 7002
    Enterprise Manager Agent http://Host/emd/main
    Oracle Forms http://Host/formes/frmservlet 9001
    Oracle reports http://Host/rapports/rwservlet 9002

    So far, I have only an addition to my Web Page:

    http://www.Visi.com/~mseberg/compile_forms_on_wl.html

    As always this work orders:

    ./opmnctl status
    

    I was able to add PHP after you apply the hotfix 9292625.

    Note of Oracle that I found useful

    854117.1

    Published by: mseberg on May 20, 2011 14:16

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