RAC & Failsafe :: Oracle Rac Raw Device As Shared Storage
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
we don't have system or storage admin available..I have to create the development environment. I have 2 Dell 2950 Power Edgde Servers and 500 GB Buffalo NAS with Windows 2K3 X64 EE, tell me whether I can install Oracle RAC with this kit.
If yes , how can I configure shared storage and present it to OS so that both nodes can see it.
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Jul 26, 2013
Some shops run Oracle RAC using "conventional" storage, like emc, netapp, etc. Some shops run Oracle RAC using JBOD, just bunch of disks, all redundancy is managed by ASM.
How would you distinct these two approaches? JBOD approach sounds cheaper, so why serious enterprises are still using traditional conventional storage, like netapp and emc?
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Mar 4, 2013
The db is 11.2.0.3 on a linux machine.
Is it possible to create a raw device on a logical volume WITHOUT cluster service from os vendor such as HACMP(AIX), Service Guard(HP)?
The following is os information.
[aa@mm01(abc):/home/abc] uname -a
Linux aa 2.6.18-194.el5 #1 SMP Mon Mar 29 22:10:29 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
[aa@mm01(abc):/home/abc]
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Jul 4, 2012
I want to configure row device to usable for creating new asm diskgroup.we are using ASM. Steps to configure that row device to available for creating new diskgroup.
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Aug 6, 2012
I have a SAN Storage device of 8TB size . I am new to rac setup ,i dont know how to configure the SAN device for RAC SETUP on ASM..how to configure the SAN device for RAC setup on ASM
How many disks we need to have? which and sholud be on ASM ? how to impliment raid10 for database file disk and raid5 for arhcive log files
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Aug 29, 2013
In one of the book (Personal Oracle Real Application Clusters: Create Oracle 10g Grid Computing) I have seen the detailed explanation to configure Oracle 10g RAC on external disk- MAXTOR A01A200.
Is it possible to configure Oracle 11g Release 2 RAC with two node using MAXTOR disk?
or Is there any other external disk available which I can use it as a shared storage?
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Aug 9, 2013
I wanted to setup a two node 11g RAC with ASM at my home for learning purpose. I have read many documents to configure shared storage using NFS, Openfiler, VMsetup etc. Is there any hardware available (something like maxtor disk) which is not much expensive to setup a shared storage ?
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Aug 6, 2012
I am trying to install Oracle RAC 11g on Oracle Linux via Virtual Box. My host server is windows. How to create shared storage on windows?
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Sep 18, 2012
I am trying to apply 11.2.0.2.5 psu on a 2-node cluster running on RHEL 5.5 vms. Followed ORACLE-BASE examples when installed this laptop RAC. I am not using any ACFS and none of GI and DB homes are shared. But, on node 2, cluvfy THINKS database home is shared.
[oracle@rac1 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle/product/11.2.0.2/db_1 -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle/product/11.2.0.2/db_1" is not shared
Shared storage check failed on nodes "rac2,rac1"
Verification of shared storage accessibility was unsuccessful on all the specified nodes.
NODE_STATUS::rac2:VFAIL
NODE_STATUS::rac1:VFAIL
OVERALL_STATUS::VFAIL
[oracle@rac1 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle_grid/product/11.2.0.2 -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle_grid/product/11.2.0.2" is not shared
Shared storage check failed on nodes "rac2,rac1"
Verification of shared storage accessibility was unsuccessful on all the specified nodes.
NODE_STATUS::rac2:VFAIL
NODE_STATUS::rac1:VFAIL
OVERALL_STATUS::VFAIL
[oracle@rac1 trace]$ hostname
rac1
[oracle@rac1 trace]$ echo $ORACLE_HOSTNAME
rac1
[oracle@rac1 trace]$
##################################################################################
[oracle@rac2 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle/product/11.2.0.2/db_1 -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle/product/11.2.0.2/db_1" is shared
Shared storage check was successful on nodes "rac2,rac1"
Verification of shared storage accessibility was successful.
NODE_STATUS::rac2:SUCC
NODE_STATUS::rac1:SUCC
OVERALL_STATUS::SUCC
[oracle@rac2 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle_grid/product/11.2.0.2/ -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle_grid/product/11.2.0.2/" is not shared
Shared storage check failed on nodes "rac2,rac1"
Verification of shared storage accessibility was unsuccessful on all the specified nodes.
NODE_STATUS::rac2:VFAIL
NODE_STATUS::rac1:VFAIL
OVERALL_STATUS::VFAIL
[oracle@rac2 trace]$ hostname
rac2
[oracle@rac2 trace]$ echo $ORACLE_HOSTNAME
rac2
[oracle@rac2 trace]$
I can not determine any reasons and do not know how to fix.
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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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Mar 7, 2011
I have a database running on 10205 version. It is a RAC database with ASM storage.
I want to migrate this database to other server and upgrade this database to 11202 version .
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Jul 22, 2013
I am looking for different cheap storage options to build test RAC setup for DB on Linux@Dell PowerEdge T100 .
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Jul 13, 2012
We have the following scenario that we need to replicate:
Our current systems are on oracle RAC+ASM with 2 nodes, they are on physical hardware.We would like to replicate from physical to VM, storage is DELL compellent.
Can this be done online without RMAN at SAN level replication? how to replicate the systems.
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Mar 1, 2013
My organisation is currently discussing different storage options for the database storage. Our production database is nearly 2TB and we do not want to continue with the existing NetApp storage (we use a 2 node RAC running 11.2.02 with nfs filesystem from NetApp filer).
We were looking at different options and came across Nimble Storage, they are very fast growing company aiming mid-range storage customers. The initial talks and demonstration looked very promising in terms of IO performance (they claim 40,000 - 60,000 IOPs for their CS400 series Nimble Storage array) and other options they are providing but we understand that majority of their customers are using it for VDI and other infrastructures.
They have demonstrated us using if for Oracle database with ASM storage over iSCSI LUNs. We are yet to do the POCs and benchmarking.
Has anyone come across Nimble Storage for running Oracle databases?
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Feb 21, 2012
I have one PDA device. I need to run a Oracle form developed in Oracle forms 6i on this PDA by connecting it to the Oracle 10G database running on Linux Server.
I need to know is there any Oracle client for windows 6.0 OS. if yes then how can i install it on PDA and access the Oracle database through forms.
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Oct 19, 2013
I want to send sms to the mobile using Oracle form 6i.
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Oct 20, 2012
i finished from design and programming the program how can Connect this program on more than one device
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Jun 19, 2012
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Jul 2, 2012
My environment is Windows XP PC
Ram - 1 GB
Oracle version 8.1.7.0.0
Enter user-name: sys as sysdba
Enter password:
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Even i start the Oracle service through the services.msc there are no new entries seen in alert log file of the database.I even changed the init DBNAME. ora file but that file is not being read. what is the normal procedure used by oracle 8i while starting the DB ? Which file should be edited if i come across shared realm memory error.
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Apr 7, 2012
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
connected as- / as sysdba
Connected to an idle instance.
SQL> startup
ORA-01261: Parameter db_recovery_file_dest destination string cannot be translated
ORA-01263: Name given for file destination directory is invalid
OSD-04018: Unable to access the specified directory or device.
O/S-Error: (OS 2) The system cannot find the file specified.
SQL>
ORACLE_HOME is - E:\oracle\product\10.2.0\db_2
ORACLE_SID is - orcl11
I'm using Oracle 10.2.0 in windows 7.When i installed oralce it worked properly for 1 week, now throwing an error ora-01034 and ora-27101.
I just perform CRUD Operations with database as a java dev by connecting via MYEclipse, but it is not at all allowing me to connect.
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Jul 17, 2010
I have stored test.sql in shared mapped drive and i don't have previlege to rename but i can read-write access at folder level.
How do i run the below sql script?
@\ind-aaa est est.sql
Here \ind-aaa is the mapped drive name.
I am getting error that \ind not found.
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Jun 12, 2010
ORACLE was working perfectly on Windows 7 since Jan 2010. A couple of days ago I ran a procedure which was to update a table with 1000 columns. The procedure worked fine till it created a few thousand records and then it slowed down terribly. I closed the SQL Plus command line tool (CTRL C) and tried to restart and then tried to logon to get the following errors-
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Then I used the Start Database tool (net start OracleTNSListener), but it showed "System 5 error". So after researching online I created Admin profile for WINDOWS 7 and logged in as an administrator. In the INIT.ORA file I increasd the SGA_TARGET to 5G and PGA to 3G. After doing that the above service is running but I'm still getting the ORA-01034 and ORA-27101.
Using cmd prompt in Windows and entering commands sqlplus -> Username: " / as sysdba" gives an insufficient privileges error.
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Mar 25, 2013
How can I determine version of oracle database from APEX. Is there any built in table or view is available in APEX? Is it possible from Shared Component?
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Oct 26, 2006
I am new to oracle which command do I use to set the file storage in oracle? I learnt the we have the option of specifying the storage pattern as per our queries.
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Nov 16, 2012
I am doing a Trade Study on Automatic Storage Management vs Veritas Storage Foundation for Oracle RAC on Solaris. I am trying to get feedback from individuals on which file system is best for a high OLTP 11gR2 system. I am really concerned about how the to file systems stack-up when compared on their overall performance. Our system admin doesn't trust ASM and is a firm believer in Veritas. I am trying to be objective and find the best solution for our projected upgrade system. We are upgrading from Solaris 890s to T4-2s, 11gR2, Solaris 10 or 11, and EMC storage. I was also concerned that Oracle doesn't have the ASMLIB package for Solaris. We have other system on Linux that use ASMLIB.
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Sep 24, 2013
i am continuously inserting data to oracle database after some time like 2 hours oracle disconnects,it creates erros like
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 Serial number: 0
after restarting the database with shutdown immediate ans startup if i start inserting records it will show erros like
ORA-01653: unable to extend table SYSTEM.GLT_PROT_TRAFFIC_SUM_VOIP by 8192 in tablespace GLCOMM
but i have created the Tablespace with BigFile Auto Extend and max size unlimited, i am having 400GB disk space created Redo logs with 15gb,i have tried serveral times reinstalling the oracle but problem is not solved.
same problem is happenging with small datafiles also,
operating system: windows server 2008 R2 standard
oracle server : 11g
oracle client : 64 bit
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Dec 28, 2012
I have a Linux box with the below configurations:-
Linux blrulvremoradb02 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
Last time my UNIX administrator have done a partition in this box. I have 100GB lun allocated to this box which is spilitted in two mount points.
/u01 is having 30GB and /u02 is having 70GB. I want to build a ASM in this box and install Oracle 11.2.0.1 and for that I need raw disk.
Is there any useful links or can you guide me to achieve this... My UNIX admin is on leave for new year and I want to do this by my own..
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Feb 16, 2012
I am creating the below table.but why oracle is not taking next extent value that I mentioned in the storage clause?
create table acs (
timestamp varchar2(19),
source varchar2(19),
message varchar2(35),
sev varchar2(10),
[Code]....
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