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?
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 ?
View 3 Replies View RelatedSome 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?
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?
View 5 Replies View RelatedI 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?
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.
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.
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?
we want to pin a sql query in shared pool so that it doesn't need to be re parsed. How to do that
dbms_shared_pool_keep() do for the functions and procedure does it also do for sql queries if yes then how?
When investigating memory usage on HP-UX V3 for my oracle database 11.2.0.3.4 which use AMM, it seems to me that system is not shifting shared SGA memory to private PGA memory when needed but it allocate other memory.The shared memory don't shrink all the memory_target id allocated. VSZ = RSZ
To test i have used this script which will allocate memory in process PGA.
create or replace package demo_pkg
as
type array is table of char(2000) index by binary_integer;
g_data array;
end;
[code]...
I have done the same test on a linux machine (Red Hat Enterprise Linux Server release 6.3) and the size of the POSIX shared memory switched (/dev/shm) to the PGA like demonstrated by Tanel Poder in his blog [URL]...
Related conf :
lock_sga=FALSE
pre_page_sga=FALSE
pga_aggregate_target 0
sga_target 0
memory_target 5553258496
memory_max_target 5553258496
Way to share or manage the TNSNAMES.ORA file for all oracle clients in same place?I already have a TNSNAMES.ORA configured and running in the machines (locally).The problem is that any change done( ip, port etc), imply in update all files in all the Oracle clients
View 1 Replies View RelatedJust trying to figure out a way to reset a lost sys password.The Customer has a database that were configured by the application provider.They were however kicked out and did not leave any kind of documentation behind
they also configured the passwordfile to disable OS (oracle) user to login to the DB.Is it possible to change the password file with orapwd to set a new password for the sys user?I some how recall that it can only be done if the passwordfile is set to exclusive and not as in this case set to shared.
I want to upload csv file from share location(another host) & store data in table
View 2 Replies View RelatedWhy for dedicated server mode session memory is alloted from PGA and same in shared server mode by SGA ??
View 4 Replies View RelatedI scheduled a RMAN backup job to take FULL database backup to a shared network drive.
RMAN Script used:
RMAN> run
2> {
3> allocate channel ch1 device type disk format '\\BACKUP1635\X$\ARC%U';
4> backup database plus archivelog;
5> release channel ch1;
6> }
Environment: Windows server 2003 OS and Oracle 10.2.0.4.0
Iam facing below error.
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ch1 channel at 02/20/2011 18:19:46
ORA-19504: failed to create file "\\BACKUP1635\X$\ARC1BM55JL8_1_1"
ORA-27040: file create error, unable to create file
OSD-04002: unable to open file
O/S-Error: (OS 5) Access is denied.
I checked shared network drive and found READ/WRITE access for me. I am able to take RMAN backup in local system without any issue.
How to overcome from the below error.
Database Error-ORA-04031:unable to allocate 76320 bytes of shared memory("shared pool","SELECT/*+Norewrite*/DIST...","sql area","kkmevw:view_txt")
Here I attached that error.
Attached File(s)
Disco_Error_1.jpg ( 49.03K )
Number of downloads: 3
If I have specify the SGA_TARGET, do I still need to specify the amount of memory for SHARED_POOL_SIZE? I thought once the SGA_TARGET, auto memory management is in place and SHARED_POOL is not neccessary.
View 2 Replies View RelatedWhen i try to extract create statement of table i get below error message.
SQL>
SQL> set heading off
SQL> set pagesize 0
SQL> set long 1000000
SQL> set feedback off
SQL> select
2 dbms_metadata.get_ddl( 'TABLE','CATALOG_TBL','JACK')
3 from
4 dual
5 /
ERROR:
ORA-04031: unable to allocate 104 bytes of shared memory ("shared pool",
"SELECT
/*+rule*/ SYS_XMLGEN(...","SQLA^fc8f5280","qecsub : qkxrPXformQbc")
ORA-06512: at "SYS.DBMS_METADATA", line 2625
ORA-06512: at "SYS.DBMS_METADATA", line 2668
ORA-06512: at "SYS.DBMS_METADATA", line 2983
ORA-06512: at "SYS.DBMS_METADATA", line 3897
ORA-06512: at "SYS.DBMS_METADATA", line 5678
ORA-06512: at line 1
Note:
----
I am executing this command from another user 'DEMO' which has got DBA privilege.
how to fix this error and extract the create table statement.
I am facing a problem as listed below:
$sqlplus /nolog
SQL>conn /as sydba
connected.
SQL>conn upt/upt
not connected
ora-01034 not available
ora-27101 shared memory realm doesntnot exists
linux error-2 no such file ...
SQL>...
UPT is the user in which our data resides.
wat cud be the problem??????
I tried increasing sizes in INIT.ORA.... listener,tns is OK
.bash_profile of ORACLE user is also correct.
we are running a 2 node rac database of oracle 10.2.0.4 in aix 6.3. The shared pool utilisation goes up when we run our jobs and sql statements. But it does not come down. It been 2 gig for over 3 days without any processes running.
Is there a threshold time period after which oracle will release the space utilisation from the shared pool????
We are facing performance issues on our production instance 10g(10.2.0.4) 32-bit OELinux 5.3 2GB SGA. The performance is mainly related to one of the table which is sized about 32Gb. We have rebuild the indexes as well but problemstill persist. We are considering to pin SQL statement in shared pool which is hitting the same table frequently. But as far what we have find, is that we can only pin procedures or function in shared pool. True/false?If we can, then how to pin SQL statement in shared pool?If we can not, then is there any other way?
View 3 Replies View RelatedIn my database server i am not able to login to the database via sqlplus and exp/imp also having error as below. But i am having permission to the this executable. I am falling under other user catagary
export ORACLE_SID=TEST
export ORACLE_HOME=/dboracle/orabase/product/10.2.0.3
export PATH=$PATH:$ORACLE_HOME/bin
Error:sqlplus: error while loading shared libraries: libsqlplus.so: cannot open shared object file: No such file or directory
Permission details.
testuser@sgh3001:/dboracle/orabase/product/10.2.0.3/bin> ls -lrt sqlplus
-rwxr-x--x 1 oracle dba 12924 2007-03-27 10:21 sqlplus
I download Oracle Database Express Edition 11g EX.install in my windows XP laptop.run SQL command (following the start guide)
try to connect to database.
I go the error message.
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 serial number: 0
I am having enq: TX - row lock contention in top wait event. it is occurring between 10pm - 2am.
We are having sqlloader job running every one hour(conventional path). But for the specific period of time i am getting "Global Enqueue Services Deadlock detected". Between 10-5. I analyzed related trace file it is make me little confusion.I found there are four insert query culprit for this locking. out of four sql , tow of them are ran by same SID, other two insert ran by same id. I got confused because how same sid locking them self. trace file below. during this period oracle maintenance window is active.
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]....
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.
I'm getting the following error when i shutdown or startup the db,
SQL> shutdown immediate;
ORA-00604: error occurred at recursive SQL level 1
ORA-04031: unable to allocate 264 bytes of shared memory ("shared pool","unknown object","PCUR^18465427","kglob")
I am seeing the following error message in alert.log (ORA-04031: unable to allocate 32 bytes of shared memory ) and my database goes into hung state and wont let any new sessions to connect and old sessions just hung with no response. i have to kill the instance to come out of this problem.
I am running 11.2.0.3 on AIX and have memory_target=35GB. I would like to know what approach to take to find out the root cause of this? btw - does AWR show if memory was under pressure and what SQL's were consuming more memory just before the problem surface?
I'm using Oracle 8i Enterprise Edition. When i try to connect my database using Internal user, i m getting messege "Shared Memory Realm Does Not Exist"
View 20 Replies View RelatedWe 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?)
How to check whether database is dedicated or shared ?
View 1 Replies View Related