Two Instances on one machine questions

I need to install about 4 db instances on one windows machine for the start of a peoplesoft migration. I am not interested in grid computing.
I know I need to have multiple ports for the oem's but how do I sign on to the correct database when doing rman/, sqlplus and other common functions?
I am particularly concerned with upgrades and running opatch .
How do I set "ENVIRONMENT VARIABLES" when there are two oracle_sids?
I am starting to think 4 small boxes may be better?
Any advice?
THANKS!

There are two ways of setting the environment variables in WIndows:
command line (valid for that command line window only)
set {env var}={value}
eg: set ORACLE_SID=abc
system wide (valid for everything, and therefore may interfere if not unset when not in use)
Start > Settings > Control Panel > System > Advanced > Environment Variables
If you are attempting to create a second database in the same Oracle Home, consider using the steps here

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Two ASM instance on one machine

Can we have two ASM instance on one machine ? My Manager is saying he is positive and I don't have anything to show him that we can not do that. Is there any link, document anything available for this ?
Thanks

Keyur,
This is an interesting question. I have seen references where in it clearly says that only one ASM instance is required per node irrespective of number of databases on a node. But, I haven't seen a clear indication, wherein it is mentioned that you can't start more than 1 ASM instances on a node. Therefore, I thought, I would give it a shot, by attempting to bring up a second ASM instance and here is what I get:
SQL> startup nomount pfile=init+ASM5.ora
ORA-00304: requested INSTANCE_NUMBER is busy
SQL>
If I shutdown my ASM1 (first ASM instance) then it allows me to bring up the ASM5 instance. This leads me to believe that you can't startup up more than one ASM instance on a single node.
Here is a note, which mentions that you need only one ASM instance per node. https://metalink.oracle.com/metalink/plsql/docs/ASM%20best%20practices.pdf
Thanks
Chandra

How to install more than one instances on one machine

Hi ALL,
I want to install more than one instances on one machine, but i am a freshman on SAP field. How and where can i get the related infomation for that? thank you very much !!

Hi tieyan,
Glad the information was of some help.
For Windows, there is an older note <a href="http://service.sap.com/sap/support/notes/28392">28392</a> that has some more information. It is important also that the SAP parameter PHYS_MEMSIZE is sized correctly according to note <a href="http://service.sap.com/sap/support/notes/88416">88416</a> (the bottom of the note gives some examples). For example, if there were two central instances and the two Oracle database instances on one host, PHYS_MEMSIZE for both instance profiles (of the central instances) would be 35% of the RAM (1/2 of 70%). In the case of MSSQLSRV 2000, for PHYS_MEMSIZE you would refer to the scenarios of note <a href="http://service.sap.com/sap/support/notes/327494">327494</a>.
If you ever want to thank somebody else for helping in answering a question, the <a href="https://wiki.sdn.sap.com/wiki/display/HOME/RulesofEngagement">Rules of Engagement</a> has a section 'Thank Others by Giving Points' that explains this further.
Regards, Mark

How to handle sessions with two severs on one machine?

All,
I am having a problem with session cookies being overwritten when I host two apps on one machine running WebLogic 8.1 The apps are http://myserver:7300/app1 and http://myserver:7400/app2, and each runs in its own server.
Users will often access both apps at once, in two browser windows. If the windows are different threads in the same process, the sessions collide. For Internet Explorer, this isn't usually a problem since clicking on the shortcut multiple times launches different processes by default. Some browsers (Firefox, etc.) won't let you have two windows under different processes. Attempts to launch a second window 'detect' the existing process and appear to spawn a new thread. When this happens there appears to be no way for the users to use both apps at once.
I know this is happening because of the way session cookies are stored in the browser process' memory. The session cookies appear to me to be 'keyed' by the host name or ip address of the server. Does anyone know of a setting in WebLogic so that this 'key' includes the port or context root? Is this even something which can be controlled on the server side?
Thanks for any help,
Brian

Not quite sure what your intent is, but if you want to avoid a clash how
about giving each application a different default session cookie name.

How to install two instance on one server

Dear Guru,
I want to install two instance on one server.
I have installed IDES server ( win 2k3 64 bit with SQL 2005 ECC 6.0)
Drive is
c: 20 GB for os
d: 5 gb swap
e: 5 gb swap
f: 450 GB database.
The same server i want to installed SOLMAN 4.0 with sql 2005.
Please suggest me how to installed without affcting IDES server.
Amol

Hi,
You only have to consider 2 things :
1. SAPTRANSHOST entry in hosts file will be the same for both systems
this mean that both systems will share the same transport directory
Regards,
Wojtek
This is not true. Your SAPTRANSHOST will remain the same, but you can (and should) specify independent trans directories with the DIR_TRANS and and EPS profile parameters to designate where the instance trans files should be located (i.e. /usr/sap/trans_SID). I recommend you make this change in the existing host first, and then clear out the trans directory. Let the 2nd instance install into it and then alter that one too (thereby moving the files to the new /usr/sap/trans_SID2).
Edited by: David Ingersoll on Jan 31, 2008 3:12 PM

Two FQDN on one machine.

I am trying to consolidate services on to as few machines as possible. Since you can setup multiple IP addresses, is it possible to have two FQDNs on one machine? I want to use a server to host files on my private network but also provide a public website. I already have the entries in DNS. I just don’t know if I can have two FQDNs on the same machine. It is as simple as just adding the new address?

If you are just talking about web hosting for two fqdn, then add another site in ServerAdmin:Web
Apache suppport virtual hosts. You could have hundreds of FQDN running under a single IP address.
In your case, you don't even need two IPs, but you could use them- or at least use them transitionally until you modify DNS and then just use on public IP.
If you want to add a second IP to the machine, you duplicate the port in SystemPrefs:Network. Show Network Port Configurations, then duplicate the ethernet interface and give that interface it's new settings.
Jeff

Question on Oratab file when installing two Oracle instances in one machine

OS: AIX 5.3
DB version:10.2.0.1.0
I already have an instance of version 9.2 which is very important and which we don't want to upgrade and we wanted another test(unimportant) oracle instance called testdb_10gR2 of version 10.2.0.1.0 on the same machine.
So i installed 10.2.0.1.0 on a different ORACLE_HOME .Installation of the new 10.2.0.1.0 (testdb_10gR2) went ahead successfully and at the last step i have to log in as root and execute root.sh
I entered 'n' for the options "dbhome", "oraenv", "coraenv" as shown below so that the settings for our 9.2 instance (which is very important) will remain intact.
What would have happened if i entered 'y' ie. Overwrite ?
The following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /u04/testdb_10gR2_Feb2009
Enter the full pathname of the local bin directory: [/usr/local/bin]: /usr/local/bin
The file "dbhome" already exists in /usr/local/bin. Overwrite it? (y/n) [n]: n
The file "oraenv" already exists in /usr/local/bin. Overwrite it? (y/n) [n]: n
The file "coraenv" already exists in /usr/local/bin. Overwrite it? (y/n) [n]: n
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
During installEdited by: Citizen_2 on Jan 30, 2009 5:05 AM

'dbhome','oraenv','coraenv' are sripts used to set a proper environment (see the descriptions at the beginning of these scripts). These scripts rely on oratab (they check for existing SIDs), but answering 'Y' does not mean you will modifiy an existing oratab.
I think these scripts change rarely, so it's very likely overwriting the existing 9i scripts with the 10g scripts changes nothing. To be honest I don't use the scripts , so in my case 'Y' or 'N' doesn't matter. But important is you don't have to worry about 'oratab'.
Werner

Two apex instances on one machine

I am trying to create two apex instances using the embedded PL/SQL gateway on a single machine. I have two database instances up and running, one for development and one for production. I successfully installed apex 3.2.1 on the development instance, created some simple apps and everything seems to work as advertised, running from port 8080.
I installed 3.2.1 on my other instance and everthing went fine until I had to create a way to connect. My
select dbms_xdb.gethttpport from dual;
returned zero, so I knew I had to set a port to wake up the network services on the instance. That's where I have my question. I cannot find out whether I need to use port 8080 and somehow separate my apex instances based on the DAD or if I should use a separate port for each instance. I tried setting the httpport to 8090 on the new install and my listener shows it active, but when I hit it, I cannot get a response with ~/apex/apex_admin - just a browser password dialog.
The apex environment on the development install continues to work fine, responding to ~:8080/apex/apex_admin.
I am guessing that I have a logical gap somewhere. Where can I read about how to manage this kind of setup?
Thanks,
Brandt

Brandt:
You want to check if a DAD named 'apex' is configured in the Oracle instance where you have the http port set to 8090.
Login to this instance as the sys user and run this bit of pl/sql. It will display all DADS and their mappings
SET SERVEROUTPUT ON SIZE UNLIMITED
DECLARE
pths DBMS_EPG.varchar2_table;
dads DBMS_EPG.varchar2_table;
BEGIN
dbms_epg.get_dad_list(dads);
for i in 1..dads.count loop
    DBMS_EPG.get_all_dad_mappings (
       dad_name => dads(i),
       paths    => pths);
    DBMS_OUTPUT.put_line('Mappings for DAD'|| dads(i));
    FOR j IN 1 .. pths.count LOOP
       DBMS_OUTPUT.put_line(pths(j));
    END LOOP;
end loop;
END;Varad
Edited by: varad acharya on Sep 10, 2009 6:53 AM

Two clusters on one machine

I'm trying to get two clusters different versions of Coherence running on the same box. They have different cluster names and different multicast listener addresses but when I start the second cluster I get the following error:
1117 [Logger@748080913 3.5.3/465p7] ERROR Coherence - 2011-03-16 17:52:28.094/1.431 Oracle Coherence GE 3.5.3/465p7 <Error> (thread=Cluster, member=n/a): This member could not join the cluster because of an incompatibility between the cluster protocol used by this member and the one being used by the rest of the cluster. This is most likely caused by a Coherence version mismatch, or by mismatched protocol filters (e.g. compression, or encryption). Rejected by Member(Id=1, Timestamp=2011-02-16 20:52:32.677, Address=169.35.10.56:8088, MachineId=32824, Location=machine:nyl31a-2204-eth4,process:18284, Role=CsDatacacheWebService).
1117 [Logger@748080913 3.5.3/465p7] DEBUG Coherence - 2011-03-16 17:52:28.095/1.432 Oracle Coherence GE 3.5.3/465p7 <D5> (thread=Cluster, member=n/a): Service Cluster left the cluster
1121 [main] ERROR com.cs.configservice.WebService - java.lang.RuntimeException: Failed to start Service "Cluster" (ServiceState=SERVICE_STOPPED, STATE_JOINING)
The first cluster (v3.6.1) has this in its override:
<cluster-config>
<member-identity>
<cluster-name system-property="tangosol.coherence.cluster">DATA_CACHE</cluster-name>
</member-identity>
<multicast-listener>
<time-to-live system-property="tangosol.coherence.ttl">1</time-to-live>
<address system-property="tangosol.coherence.clusteraddress">239.193.112.8</address>
<port system-property="tangosol.coherence.clusterport">35000</port>
</multicast-listener>
</cluster-config>
The second (v3.5.3) has this:
<cluster-config>
     <multicast-listener>
          <time-to-live system-property="tangosol.coherence.ttl">1</time-to-live>
          <address system-property="tangosol.coherence.clusteraddress">239.193.112.12</address>
          <port system-property="tangosol.coherence.clusterport">35000</port>
     </multicast-listener>
     <member-identity>
          <cluster-name system-property="tangosol.coherence.cluster">CONFIG_SERVICE</cluster-name>
     </member-identity>
</cluster-config>
I can't figure why they aren't co-existing.
Edited by: MattS on Mar 16, 2011 11:26 AM - added version info

Hi Matt,
I think, you may need to use a different multicast port, too.
Also, verify that you are not overriding the different settings with the same Java property override value.
Best regards,
Robert

Two Hard Drives, One Machine ...?

Along the same lines as this topic ... http://discussions.apple.com/thread.jspa?threadID=1304890 ...
If I were to do this on the new MacBook Pros, what would one suggest to use for a hard drive? Also, if there is no firewire on the new MacBook Pros, does the speed of the external machine degrade if it's going over the USB?
I apologize if this isn't the most suitable category, but I thought it is related to an initial install I would do.

Hi Ascension;
First of all the MBP does have Firewire 800. If you buy a drive that supports FW800 you will get the best performance from your external drive.
If you attempt to use USB there will be a noticeable degradation in performance. USB is not able to transfer data well at disk rates. It is more suited to keyboard and mouse rates.
I like my OWC Mercury Elite Pro which I am currently using on FW800 with good performance.
Allan

File Vault (FV) acces to partitions with two OS on one machine

I am still on 10.6 but just ordered a new MBP, so I can not check myself at present.
For technical reasons I would like to have 3 partitions on the MBP, two of which will be a Mac OS 10.8 systems. The HD has thus 3 partitions. lets call them OS1 and OS2 and D3.
If I turn FV on for OS1 seperately in the control pannel of OS1 and OS2 again in the control pannel of OS2, will both be able to read D3? I assume yes. correct?
Now if I turn FV on for OS1 and D3 in the control pannel of OS1 FV. I assume that when I boot from OS 2 I will not be able to access D3? or?
If this is indeed the case, is there a way around it? Like would it work to have both the users on OS1 and OS2 be identical? Or?
I look forward to your thoughts.
Message was edited by: ChangeAgent

Thanks.
Not sure I understand your answer, let me recap to see if I understood.
So any internal partition that is on the MBP will only mount if I tell it to, it will not mount automatically when the machine has started up? At that point I enter the password for the disk.

Two Ipods on one machine

I have a third generation Ipod that I run on ITunes 6. I just bought a new fifth generation IPod and I can't set it up without downloading Itunes 7, which hasn't worked with my older IPod in the past. I've had to regress Itunes in order to get it working. How can I setup my new IPod?
dell Windows XP

Yes, it's very easy.
Hook up each iPod to its own dock (or they can share one)
iTunes will list both iPods and you can select each one individually and make changes or update the songs/videos as you see fit.
I have used this configuration for a couple of years with no problems whatsoever.

Sharing Addressbook with two accounts on one machine

Hi All,
somehow I cannot find out how to share my addessbook entries with my girlfriends account on the same mac.
I already did the same with iphoto where I created an alias of the iphoto data folder and which replaced her iphoto data folder. Now she has full access rights and can also edit the pictures.
I would like to the same with addressbook but when replacing the folder "User/Library/Application Support/Adress Book" address book does not start anymore.
Can someone please give me a hint!
Many thanks and best regards
Daniel

Does this article contain anything useful?
(24465)

Which config. will be best. 1 instance & two schemas. Two instances

I have a database with 8GB memory and 4 750GHz processors.
1. One instance and two schemas (one production and one test, both are identical).
2. Two instances with one schema each.(One Production and one test. both are identical).
A 4GB SGA will be enough for production environment if that instance is stand alone. (approximately 100/120 users).
Test env. doesn't need that much SGA and may have only 10 users maximum.
Please tell me some advantages and disadvantages of both.
Will Oracle grab more memory from the system beyond SGA when there are more users connected to the database?
Thanks,
Paul

In your case, I would recommend 2 seperate instances for production and test (actually I would recommend seperate machines, but that is a $ issue). I would recommend this, because it will allow you to create both shemas identically, making test and migration simple. In addition, an OOPS won't affect your production instance. Connected user definatly use memory outside the SGA (connection overhead, sort_area_size UGA/PGA etc).

DTRShell and 2 DTRs on one machine

Hi,
I'm playing around with the DTR and have two DTRs sitting on one machine in two instances. One is on instance 00 and the other one on 03. When I open the dtrshell it connects to the instance 00 by default. How can I connect to the DTR on instance 03???
Kind regards,
Heiko

Hello Heiko,
the DTRs on the 00 and 03 instance listen to different HTTP ports, i.e. 50000 for instance 00 and 50300 for 03 by default ( 50000 + instance_number*100 ).
Localize the files servers.xml and clients.xml on your system (usually in the .dtr folder in your home directory) and create corresponding entries for your second instance. The <client> entry with attribute "active=true" is the default client.
Best Regards
Michael

Two Instances on one machine questions

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