RAC & Failsafe :: Create Shared File System Between Two Desktop PC?
May 14, 2013
We are setting RAC between two machines(Desktop PC connected wirth LAN ....have storage Local to them and no Shared storage..Only NFS).We have shared the mount point by NFS.We do not have any shared storage but we need to share the RAW files to setup the OCR and VOTING DISKS.
The problem is:
1. We need to keep the RAW devices for OCR and voting disk common to the machines (Desktop PC..both Linux OELU5). I am able to create the raw file systems but that is local to one machine. I am not able to understand how to share the raw devices between two machines.
2. Tried to use ISCSI utility but that did not work. (How_to_use_iSCSI_Targets_on_Linux)
Scenario : One Machine has 500 GB Storage. Second machine has 80 GB Storage. Made private and public networks(Used two Network cards in LAN). All are communicating.
Problem : Need to make the storage 300GB (Out of 500 GB) of Machine 1 as shared storage. How can we do that? (Do we need any virtual software...ex .. vmware for that?)
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Oct 16, 2010
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Jul 24, 2012
I wish to install 11g r1 RAC on my laptop having linux 4 as platform (on vmware) , for that i prepare 4 partition for that (on node1)
/dev/sdb1 - for ocr
/dev/sdb2 - for voting disk
/dev/sdb3 - for asmdisk group
/dev/sda5 - fro asmdisk group
by assuming external redundancy for ocr and voting disk i kept only one disk
and i configured following in /etc/sysconfig/rawdevices
/dev/raw/raw1 /dev/sdb1 -- ocr
/dev/raw/raw2 /dev/sdb2 -- voting disk
/dev/raw/raw3 /dev/sdb3 -- asmdisk group
/dev/raw/raw4 /dev/sdb5 -- asmdisk group
and my question is how node2 can understat these raw device as shared storage?
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Aug 14, 2008
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If yes , how can I configure shared storage and present it to OS so that both nodes can see it.
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Sep 6, 2010
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Nov 16, 2010
Today, I've got an error:
$ sqlplus / as sysdba
SQL*Plus: Release 11.1.0.6.0 - Production on Wed Nov 17 09:45:50 2010
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to an idle instance.
idle> startup
ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file '+DATA/DOISOAT/spfileDOISOAT.ora'
ORA-17503: ksfdopn:2 Failed to open file +DATA/DOISOAT/spfileDOISOAT.ora
ORA-15077: could not locate ASM instance serving a required diskgroup
idle> exit
SP2-0042: unknown command "exit" - rest of line ignored.
idle> exit
Disconnected
First time, I tried to recreate spfile from pfile, however, it - the errors continued to occur. And I searched in metalink, so, I've got ID 387217.1. I've been beging followed:
1- Check the REQUIRED_RESOURCES was listed by crs_stat -p command, wasn't it? Then, the REQUIRED_RESOURCES did not contain anything
2- Modify by Metalink comment solution:
srvctl modify instance -d <database name> -i <instance name> -s <ASM instance name>
Everything is done, however, I still did not startup database instance. The above error continued, and I force to stop all by crs_stop -all.
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Aug 30, 2013
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Nov 19, 2012
I am having enq: TX - row lock contention in top wait event. it is occurring between 10pm - 2am.
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Trace file:
*** 2012-10-09 03:40:31.135
user session for deadlock lock 0x15365e060
sid: 1104 ser: 22256 audsid: 8797820 user: 49/iurth flags: 0x45
pid: 71 O/S info: user: oracle, term: UNKNOWN, ospid: 8601
image: oracle@sgh0909
client details:
[code]....
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Jul 12, 2012
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Jul 13, 2010
I am trying to write data to a network shared folder. When I write to a local file it works perfectly. Below is my procedure.
CREATE OR REPLACE procedure nbpsbp_file as
type r_cursor is ref cursor;
refr r_cursor;
tab_name varchar2(20):= null;
tab_name1 varchar2(20) := null;
tab_name2 varchar2(20) := null;
[code]....
When I execute the above procedure, it gives me the following error
ORA-29283: invalid file operation
ORA-06512: at "SYS.UTL_FILE", line 475
ORA-29283: invalid file operation
ORA-06512: at "NBPSBP_FILE", line 36
ORA-06512: at line 1
I have also set the parameter utl_file_dir = '\10.16.10.225 emp' When I set the utl_file_sir to a local folder, for example, c: emp, and use the same path in UTL_FILE.FOPEN, then it works fine and writes the desired output to text file. But when I give it a network address, it raises the above error.
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May 14, 2007
Lets say you're making upa school database and you awnted to give the students each a unique student number generated by thesystem.
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May 25, 2012
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Dec 7, 2010
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Jan 4, 2013
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Feb 2, 2013
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Jul 23, 2013
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Jun 29, 2012
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Oct 11, 2004
I have a small problem with creating the SPFILE,
These are the commands i had issued :-
1. startup nomount
2. create SPFILE from PFILE ;
Then i got an error :-
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file 'C:ORACLEORA92DATABASEINITORCL.ORA'
Ever since this happened i am unable to connect to ORACLE under any schema !
I get the following error : -
SQL> conn scott/tiger
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Warning: You are no longer connected to ORACLE.
WHY DOES THIS HAPPEN AND HOW CAN I OVERCOME IT ?
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Aug 30, 2012
How can we Rename or Relocate the SYSTEM datafile?
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Sep 15, 2010
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Declare
jpg_image_dir VARCHAR2(100) := 'C:UsersajayiaDesktopMe_pics';
photo_filename VARCHAR2(100);
BEGIN
:System.Message_Level := '25';
[code]......
I don't know the code to use to get forms to bring up the open dialog box.
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Oct 21, 2010
I am working with oracle 10g / 11. I need to operate with CLOB values of some table, unknown for me: I read them from .Net (3.5), and have to save them to files (Windows) to be loaded after this with DBMS_LOB. Lets say that table contains 3 columns (1 - CLOB) and several rows.
I want to store each CLOB value to separate file, and to store it after this into another DB table (another Instance, also). I cannot use dblinks and other techniques like this. The point is - how to avoid dealing with encoding?
I mean, that in the best scenario, I just want to save the CLOB values to the files, with no meter about Database Instance character set, language, and so on. How this can be accomplished? If I use default for .Net StreamReader UTF-8 format, the loading with DBMS_LOB failed.
If this is not possible, what will be the best way to determine the encoding, and to convert Oracle used encoding to .Net one?
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May 7, 2011
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Oct 23, 2012
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Apr 5, 2011
I can send mail with UTL_MAIL using this:
CREATE OR REPLACE PROCEDURE send_mail_file_seti IS
BEGIN
UTL_MAIL.SEND_ATTACH_VARCHAR2(
sender => 'mail@from.com',
recipients => 'mail@to.com',
message => '<HTML><BODY>See attachment</BODY></HTML>',
[code]........
What I want to do is send mail attaching a file from file system. For example, I have this file:
/oracle/pmp/file
I want to send it using a procedure like the one above.
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Sep 30, 2013
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Oct 23, 2012
I'm trying to increase the size of my system tablespace. The tablespace contains one datafile size 900MB and it can increase to 2GB.
I'd like to change this to autoextend as I'm going to run csscan on the database.
When I do change the autoextend and unlimited part of the file I get: ORA-03297: file contains used data beyond requested RESIZE value
I've also tried to increase the datafile to 4GB but still the same. I can see that there is more then enough space on the filesystem.
Oracle Enterprise edt 10.2.0.5
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Jul 31, 2012
Windows 2003, DB 10.2.0.3...I have to read some files from remote folder, so on remote Windows machine I shared folder c:est (grant Everyone first, and Administrator then) and on DB Server I mapped the remote folder with letter T..All these operations were made with administrator privileges.
In Oracle I create a directory object with this command:
CREATE OR REPLACE directory T_DIR AS 'T:';
Then I granted read and write privileges to my user
GRANT READ, WRITE ON DIRECTORY T_DIR TO <user>; (I tried also to set PUBLIC and SYSTEM)
But when I try to open a file with UTL_FILE with this command
file_handler := UTL_FILE.fopen( 'T_DIR', 'Dati.ini', 'r' ) ;
the error is
Exception: ORA-29283: operazione file non valida
ORA-06512: a "SYS.UTL_FILE", line 475
ORA-29283: operazione file non valida
If I change my directory object in 'C: est' (local folder) it works correctly.I tried also restart DB while shared folders were connected but with the same result.I tried, from sqlplus, the command host (dir t:) and it works (folder is accessible)
Is it an Oracle bug? Is it a Windows bug?
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Jun 10, 2012
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Apr 2, 2010
information on this listener.ora parameter and the endpoints file? There is no reference in the docs (except for a sample listener.ora file in the RAC Installation Guide, no explanation).
Following a clusterware with gPNP installation, the listener.ora file has only IPC addresses, plus this parameter:
LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER))))# line added by Agent
LISTENER_SCAN3=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN3))))# line added by Agent
LISTENER_SCAN2=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN2))))# line added by Agent
LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1))))# line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON# line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN2=ON# line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN3=ON# line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON# line added by Agent
The endpoints_listener.ora file specifies the fixed and VIP addresses of the public NIC:
LISTENER_GR7244=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=10.196.182.201)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=10.196.180.44)(PORT=1521)(IP=FIRST))))# line added by Agent
The listener named LISTENER is in fact listening on both its IPC address, and the addresses in the endpoints_listener.ora file:
[grid@gr7244 admin]$ lsnrctl status listener
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 02-APR-2010 04:52:02
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
[code]...
The scan listener on this node is listening on its IPC address, and its VIP:
[grid@gr7244 admin]$ lsnrctl status listener_scan3
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 02-APR-2010 04:46:15
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN3)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN3
[code]...
I did wonder if this parameter and file could be part of the mechanism whereby a listener discovers the DHCP assigned VIPs on which it has to listen?
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Oct 21, 2010
I am working with oracle 10g / 11. I need to operate with CLOB values of some table, unknown for me: I read them from .Net (3.5), and have to save them to files (Windows) to be loaded after this with DBMS_LOB. Lets say that table contains 3 columns (1 - CLOB) and several rows.I want to store each CLOB value to separate file, and to store it after this into another DB table (another Instance, also).I cannot use dblinks and other techniques like this.
The point is - how to avoid dealing with encoding?
I just want to save the CLOB values to the files, with no meter about Database Instance character set, language, and so on. If I use default for .Net StreamReader UTF-8 format, the loading with DBMS_LOB failed.
what will be the best way to determine the encoding, and to convert Oracle used encoding to .Net one?
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