Creating ASM Disks From NFS Mounted Files
Jul 25, 2010
Regarding 11gR2 RAC, ASM, and NFS. Installing 11gR2 Grid Infrastructure and 11gR2 RAC on OEL 5.5 servers with storage supplied by NetApp NFS shares over TCP/Ethernet.
How do I mount NFS file systems as block devices so ASM will use them?
It is my understanding that Linux mounts NFS file systems as anonymous file systems rather than block devices. ASM requires block devices. The only way I know to have Linux treat an anonymous file system mounted over NFS as a block device is to subsequently mount it as a loop device.The Oracle 11gR2 documentation states, "ASM does not support loop devices". Without defining NFS mounts as loop devices, oracleasm createdisk complains the given file on the NFS mounted file system is not a block device when i run
/usr/sbin/oracleasm createdisk DATA /oradata/prod/data/disk01
where /oradata is an NFS mount from a NetApp volume defined in /etc/fstab and disk01 was created with the dd command.I followed the steps in section 3.3.1.2 'Creating Files on a NAS Device for Use with Oracle ASM' of the Oracle guide..
When I use asmca, it does not find any candidate disks with the search path set accordingly.If successfully implemented ASM using NFS shares for database disk groups from a NAS, Steps I followed are below.
In /etc/fstab:
server-ip-address:/vol/data /oradata nfs rw,bg,hard,nointr,tcp,nfsvers=3,timeo=600,rsize=32768,wsize=32768,actimeo=0 0 0
-- mount and verify. /oradata is mounted with specified options.
# mount -a
# mount
[code]...
Command fails with error message "File /oradata/prod/data/disk01 is not a block device." None of the OUIs (grid installer, asmca, or dbca) identify any disks as ASM candidate disks with the search string '/oradata/prod/data/*'. I also tried using '/*', '/oradata/*', '/oradata/prod/data/*' to no avail.
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Jun 27, 2012
We have Exadata -V2 quarter rack with High Performance Disks. We applied EHCC's various compression methods on some of the table's partitions.
Now we are setting up Exadata Expansion Rack - High Capacity Disks. Post implementation, we would be moving older partitions to new Expansion Rack wherein compressed partitions are also included.
In this case, would there be any impact on the compression ratio as the expansion rack is having high capacity disks.
And, moving partition method would be same as it is for non-exadata database i.e. "alter table <table_name> move partition
<partition_name> tablespace <tablespace_name>"
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Mar 13, 2012
i am having "quiescing" instead of "mounted" on one of disk group where OCR is lying. i.e OCR_DG1 is the name of disk group , now i have search the internet and found that.
Quote: CRSCTL utility attempted to dismount a disk group that contains the Oracle Cluster Registry (OCR). The disk group cannot be dismounted until Cluster Ready Services (CRS) exits, because the disk group contains the OCR
now my question is that whether the local DBA tried to dismount this disk group and to make it mounted whether i have to stop CRS or there is another method to do.
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Nov 21, 2012
i have a problem when i try to login to oracle...i found this message error.
ora-01033 oracle initialization or shutdown in progressafter i logged on with / as sysdba...i did the following
SQL> shutdown immediate;
ORA-01507: database not mountedORACLE instance shut down.
SQL> startup mount;
[code]....
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Jan 10, 2012
I am a new Oracle DBA that has been tasked with creating some single node databases for our programmers to connect to. I have never built a database, only upgraded. I will be using a Dell 610 with 10.2.0.4 software. I have been reading the install guides but cannot find a definitive answer for how to create the raw partitions. I have a SAN that I can utilize and my current db is set up with RAID 6 like so:
Disk 2 300 GB 1 Extended 300 GB and 5 logical, 100MB, 30 MB, 100 GB, 100 GB, 100 GB
Disk 3 100GB 1 Extended 100 GB and 3 logical 100 MB, 30 MB, 100 GB
why the old DBA partitioned this way? I am not good with storage and know that I need to understand before I build new databases so I do not duplicate something that is wrong. I was reading articles that recommend SAME but would not know how to do that on the SAN.
I will be using data pump to export the database and import to the new server. I was looking at using transportable tablespaces to do this. Would you recommend that from the cluster to the standalone?
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Oct 21, 2013
Is there any command to identify the disks are HC OR HP ? Indirectly i could find with the following exercise -
$ grep -i MACHINETYPES /opt/oracle.SupportTools/onecommand/databasemachine.xml <MACHINETYPES>X2-2 Half rack</MACHINETYPES> ASMCMD> lsdgState Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files NameMOUNTED NORMAL N 512 4096 4194304 18235392 10597264 2605056 3996104 0 N DATA/MOUNTED NORMAL N 512 4096 4194304 2087680 2085808 298240 893784 0 Y DBFS_DG/MOUNTED NORMAL N 512 4096 4194304 27240192 18871860 3891456 7490202 0 N RECO/ = 45TB >>
[URL] ....... >> Page 5 >> HP SAS disks
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Jan 1, 2013
I am using oel 5.8, oracle 11.2.0.3. The raw disk permissions are getting changed when the node gets rebooted.I am trying to use udev rule to change the permission permanently but its not working.
CODE[root@VM-PAGRAC3 rules.d]# more 99-asm.rules
KERNEL=="sd", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p",*
RESULT=="SATA_VBOX_HARDDISK_VB7a29b7ae-de673b56_",
NAME+="oracleasm/disks/DSK1#" OWNER="grid"
GROUP="asmadmin" MODE="0660"
KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p",
RESULT=="SATA_VBOX_HARDDISK_VB36f5d134-4e0e4c43_",
[code].....
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Aug 31, 2011
I have an Oracle database 11.1.0.6 with ASM storage.
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for Solaris: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
There is a disk group named +FRA which has only 1 disk (call it disk 0 for later references).
+FRA disk group is in type of EXTERNAL redundancy
I'd like to add another disk to +FRA disk group and copy all files stored in disk 0 to the new disk (call it disk 1 for ex.), then take off disk 0 (not use for +FRA disk group any more).
Expected result: there is only one disk 1 left in the +FRA disk group, with all the data from disk 0 and keep their original file names
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Aug 27, 2011
I am trying to install 2-node 11gR2 RAC on CentOS 5.6 using VMWare Fusion. I'm in the middle of Grid Infrastructure installation and while choosing the ASM diskgroups I don't see any candidate disks but when I click on all disks i can see them but can't select them.
I tried installing the grid before and ended up with and issue running the root.sh on all the nodes so had to deconfigure the grid binaries using the rootcrs.pl and then deinstalled the grid software using the ./desintall utility.
when tried installing again ...I ran the cluvfy utility ..it doesn't show any errors.
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Jan 20, 2013
We are in preparation for the purchase of equipment for two- node Oracle10g RAC (on Windows Server 2008) and I need to configure the disks on servers. We have an existing EMC VNX5500 storage and SAN 8Gb switches.
My question is with how many disks to configure servers?Originally we planned four SSD discs (two in RAID 1 for OS and two in RAID 1 for locally Oracle home) for each node/server, and everything else on storage disks (Shared Disks Storage).
Whether it is necessary to have more local disks and for what? Where should be redologs files, archivelogs files, backup files…
Whether it is better server to be configured with six SSD disks:
- two in RAID 1 for OS,
- four in RAID 10 (or RAID 1) for locally Oracle home, archivelogs files, or something else…?
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Nov 12, 2010
ASM instance SID = +ASM and the database installation was under SID =rdbms112
Im just in the process of running dbca and have specified which ASM disks to use for data, but then on the next screen of the dbca, im asked for the ASMNMP password,
the password for 'oracle' user is 'oracle' but im getting this message:
"Could not validate ASMNP password due to the following error: "ORA-01031-insufficient privilages" Do you want to continue? If you contiue ASM will not be configured to be moitored by database controll "
when I was asked for privilaged operating system groups when setting up ASM
OSDBA, OSOPER and OSASM ... were all set to group 'dba'
the oracle user is in the 'dba' group
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Mar 3, 2012
you have given 500gb of harddisk. how will u implement the size or how to assing the size for disks in the diskgroup.give me the best practice that is used in production
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Jun 28, 2012
Normally ASMlib/oracleasm is used to prepare the disks for ASM. I just wonder, besides this tool, is there any other GUI based tool to use for preparing the ASM disks?
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Jun 19, 2012
I have 11.1.0.7 instance running and got more 300G of storage available for the database. I would like to know what are the steps to add these disks/storage to the existing DATA asm disk group?
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Jul 31, 2008
I have written make files that compile .pc files in unix. This was for several projects that use an oralib source code directory.Just running proc on one target .pc file works fine on unix. I am trying to use proc - Oracle 10.2.0 - in windows and I keep getting:
Quote:unable to open include file
#include <stdio.h>
and other C library headers.
I am doing all development under cygwin, this way I can write a makefile just like under unix instead of using nmake.All C library headers are in /usr/include When I run proc on Solaris as that:
proc program.pc
No problems, and I do get program.c.
However in windows I get the previous error message. I have tried to do proc include=/user/include program.pc and proc include=/user/include parse=full program.pc but I still get the same error message.
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Oct 11, 2012
How can I know if database files are on file system or raw files?
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Jun 20, 2012
I want to compare two dump files and their respective log files, to see the difference. Is there any way.
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Nov 17, 2013
We're trying to utilize Oracle RAC 11.2. We want to have two servers in our grid. These two server are installed on a VM using Hyper-V software.
common storage for asm is also developed on a VM using FreeNAS software.Now, when we try to install Grid Infrastructure the disk that is recognized as a extra drive in both servers are disabled and we can't select it as ASM storage. The OS we're using is Windows Server 2008 R2.I have to say the IP requirements are considered and the servers have two IPs.
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Mar 19, 2013
I am trying to load the pdf files into bfile.
create directory TEST13 as 'C:\temp';
create table test102(id number(4),aaa bfile);
insert into test102 values(1234,bfilename('TEST13','sg1.pdf'));
select * from test102;
1234 (BFILE)
select id, DBMS_LOB.GETLENGTH(aaa) from test102;
ORA-22288: file or LOB operation GETLENGTH failed
[code]...
I stored some pdf files in c:\temp in local machine. DBA suggests not to put the files on DB server. Is there a way to read the pdf files without storing them in DB server?
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Sep 15, 2010
I can delete the old archives with extension arc. Today, when I consult V$RECOVERY_FILE_DEST, there are files with today date. Can I delete these files, without danger the database?
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Aug 13, 2010
I'm a SAP consultant working in SQL on NT platforms. This is the first conversion from Oracle that I have done. My client has provided us with a "Cold" backup of the Oracle dbase on a HD formatted in Unix, I have the partition mounted and I'm able to view the files. I have the ORDATA folder with all the .DBF files.
Q: How do I extract the data from the .DBF files. I need to export to something workable with SQL.
Original database was on Unix, I'm operating on Windows platform.
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Dec 1, 2010
I am running the following command to backup my archive logs and want to keep at least two hours of .arc files on disk.
rman < connect target login/password
connect catalog login/password
show all;
sql "alter system archive log current";
backup filesperset 5 archivelog until time 'sysdate-2/24'
format $FILE_DEST_ARCH
delete input ;
resync catalog;
EOT
On some occassions, there will not be any archive logs that meet this criteria and I get the following error:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 12/01/2010 12:50:58
RMAN-06004: ORACLE error from recovery catalog database: RMAN-20242: specificati
on does not match any archive log in the recovery catalog
Is there anything I can do to the rman command above that will prevent this error from happening but yet keeping same functionality?
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Oct 23, 2010
Can try this approach to recover:[URL]...
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Jul 7, 2010
generating oracle table definitions from XML .xsd files?
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May 20, 2013
I recovered dbf and ctl files, how to mount that database again. Using oracle 9i.
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Dec 3, 2010
The trace directory is full of trc files with the text below:
--------Dumping Sorted Master Trigger List --------
Trigger Owner : INPUT
Trigger Name : CUS_TST
--------Dumping Trigger Sublists --------
There is like a file generated every minute, and i cant stop it from happening.I have tried setting the trace_enabled parameter to FALSE but no success.
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Jan 5, 2011
i want to store image and pdf files in oracle 10g.
i success with blob variable.
what are the other methods.
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Aug 25, 2010
we're planning a data migration from an application (oracle-based) to another (also with oracle db).
the origin is a ca. 80 GB database. so lots of millions of records are to be migrated. (before loading records into the destination tables, they have to be transformed).
the current concept is to receive all origin data in xml files, load them in a staging area (an own migration scheme in oracle), transform and load them into the destination tables.
we have three days for the whole migration (including extract from origin database, transform, load, backup after completion...).
my question is, that a migration with xml-files is a good concept. i think xml processing is much slower than doing the same with csv files. my proposal to migrate an oracle dump (so we got the original data in our staging area) was declined.
is migration mass-data with xml files good or are there performance or other issues?
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Jan 2, 2007
if there is a way to create a custom log files or if there is way to utilize the built in log function of Oracle. Here is the code with what I am trying to do:
IF (_CONDITION IS NOT NULL) THEN
IF (V_CONDITION <> 'NS' OR V_CONDITION <> 'NE' OR V_CONDITION <> 'AR' OR V_CONDITION <> 'OH' OR V_CONDITION <> 'SV') THEN
[Code]....
Ok, so where you see V_CONDITION := 'XX'; I would like to have the value of V_CONDITION be input into a log file as apposed to changing the value to XX. So I would have something like:
RAISE BAD_CONDITION_CODE;
The problem is that I am not sure how to create the actual log file that the value of V_CONDITION will be stored in.
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Feb 17, 2006
How can I open any pdf(Acrobat Reader) file thru Oracle Forms 6i through procedure. I have written procedure to open .Doc & .XLS files by using OLE2.Create_Object but unable to do for .PDF files.
I m attaching the code in txt file , how i have done it for word
open_word is the name of the procedure/program unit
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