Create raw devices for OCR & Voting Disk for Oracle 10g R2 RACLinux 64 bit)

Hi Friends,
Please let me know the Document to cretae RAW Disk for OCR and Voting Disks (like rpm's required,process tio cretae raw disks) in Oracle 10g R2 on Linux (64 bit)
Regards,
DB

http://docs.oracle.com/cd/B19306_01/install.102/b14203/storage.htm#BABFFBBA
and
Configuring raw devices (singlepath) for Oracle Clusterware 10g Release 2 (10.2.0) on RHEL5/OEL5 [ID 465001.1]
Configuring raw devices (multipath) for Oracle Clusterware 10g Release 2 (10.2.0) on RHEL5/OEL5 [ID 564580.1]

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How to determine raw disks configured for OCR/voting disk, ASM spfile

I have a two-node Oracle 10gR2 RAC configuration using raw disks. Basically, raw disks are used for CRS's OCR/voting disks, ASM's ASM spfile and disk groups.
Is there a better way to figure out what raw disks are configured in Oracle using methods other than those shown below:
- To find out votedisk:
# crsctl query css votedisk
0. 0 /dev/ora_crs_vote1
1. 0 /dev/ora_crs_vote2
2. 0 /dev/ora_crs_vote3
- To find out OCR:
# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 525836
Used space (kbytes) : 3856
Available space (kbytes) : 521980
ID : 1603037329
Device/File Name : /dev/ora_ocr_file1
Device/File integrity check succeeded
Device/File Name : /dev/ora_ocr_file2
Device/File integrity check succeeded
Cluster registry integrity check succeeded
- Is there a way to figure out what disk device is used for ASM spfile?
- To find out raw disks configured for disk groups:
while connected to the ASM instance in sqlplus:
SQL> select name,path from v$asm_disk where name like 'DG%';
NAME
PATH
DG_DC_ASM_0000
/dev/rhdiskpower13
DG_DC_ASM_0001
/dev/rhdiskpower14
DG_DC_ASM_0002
/dev/rhdiskpower15
NAME
PATH
DG_DC_ASM_0003
/dev/rhdiskpower22

http://docs.oracle.com/cd/B19306_01/install.102/b14203/storage.htm#BABFFBBA
and
Configuring raw devices (singlepath) for Oracle Clusterware 10g Release 2 (10.2.0) on RHEL5/OEL5 [ID 465001.1]
Configuring raw devices (multipath) for Oracle Clusterware 10g Release 2 (10.2.0) on RHEL5/OEL5 [ID 564580.1]

OCR and VOTING DISK for RAC Database on ASMLib env

Can i use raw device for OCR and Voting Disk while installing Clusterware, i am planning to use ASM with ASMlib,
i know i can configure asm with dbca when i am using raw devices (to be user for ASM), How i can configure diskgroups when i use ASMlib, Can i configure ASM diskgroup with dbca , if yes plz forward me some metalink notes to study or any other help.

Hi,
Can i use raw device for OCR and Voting Disk while installing ClusterwareYes:
http://www.oracle.com/technology/pub/notes/technote_singh_crs.html
"Step 3: Create Raw Devices for the OCR and Voting Disk Before we start the installation"
plz forward me some metalink notes to study or any other help. I like Madhu Tumma's examples with raw devices because it has step-by-step examples:
http://www.rampant-books.com/book_2004_1_10g_grid.htm
Hope this helps . . .
Donald K. Burleson
http://www.dba-oracle.com

Backup and Restore OCR,Voting Disk and ASM Disks in new SAN-10g RAC

Dear Friends,
I am using 10g R2 RAC serup on Linux
My OCR,Voting Disk and ASM Disk for DBF Files are on a SAN box
Now i am reorganising SAN by scrapping the entire SAN and cretaing new LUN's (It's a must)
so pleae let me know
1) how do i take backup of OCR and Voting Disk from existing SAN and how do i restore it in new LUN's after SAN reorganisation
2) how do i take backup of existing Database's from existing SAN and how do i restore it in new LUN's after SAN reorganisation.
I will be doing it in Planned downtime only
Regards,
DB

For step 1 you should following metalink doc.
For step 2 here is simple backup command script.
I have done this in windows for you.
D:\app\ranjit\product\11.2.0\dbhome_1\BIN>rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Wed Feb 8 21:48:47 2012
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1299593730)
RMAN> run
+{+
allocate channel c1 device type disk format 'D:\app\ranjit\rman\%U';
allocate channel c2 device type disk format 'D:\app\ranjit\rman\%U';
backup database;
backup current controlfile format 'D:\app\ranjit\rman\%U';
+}+
Regards

Ocr & voting disk in 11g

Is it true that ocr and voting disks can be created on ASM in 11g? If yes, during RAC startup how would the crs which starts first be able to access ocr & voting disk on asm which comes up only after crs is up and running.
Thanks

user1824755 wrote:
Is it true that ocr and voting disks can be created on ASM in 11g? If yes, during RAC startup how would the crs which starts first be able to access ocr & voting disk on asm which comes up only after crs is up and running.With 11gr2, you have essentially 2 installs. Grid Infrastructure - that is recommended to be installed in a different o/s user (e.g. grid). This owns the (integrated) CRS and ASM software stack. You will then install RAC/EE/SE as the default oracle o/s user. You can also install it in the same o/s user (using different homes). But separating that instead as different o/s users allows more flexibility in management and admin and security of these different s/w stacks.
CRS and ASM start "together" because of their interdependency.
With OCR and Voting disks on ASM, you will now find that you cannot simply stop ASM like in the past. ASM will thrown an exception saying that it has in-use diskgroups - despite all Oracle db instances using ASM being down. Thus ASM can only be shutdown in conjunction with CRS.. and successfully starting CRS also means that ASM is started. The acmcmd CLI interface has been improved, ACFS replaces the need for using something like OCFS (and managing that as a totally different s/w stack), etc.
ASM and its feature set are maturing very nicely IMO.

Ocr & voting disk lost

Hi,
Learning about RAC..........please anyone reply it
If ocr & voting is lost means, is the database lost some datas? Is it correct?
For Ex: I had backup of OCR ,VOTING DISK which is taken at 3 Am.
Now 3.45 Am I lost current(running) ocr file ( mirror also) & voting disk.
I lost 45 minutes data?

Hi,
OCR Maintains cluster configuration information as well as configuration information about any cluster database within the cluster. OCR is the repository of configuration information for the cluster that manages information about like the cluster node list and instance-to-node mapping information.
VD primary function of the voting disk is to manage node membership and prevent what is known as Split Brain Syndrome in which two or more instances attempt to control the RAC database.
So looking into above functionality we can understand that the above are conf files and not actual data files. So you database does not lost.
Secondly, try to hold a replica copy of OCR/VD and make backups in time.
- Pavan Kumar N

CRS and Voting Disk for RAC

Hi Friends,
How much disk space size should be allocated for CRS and Voting Disk?
Thanks a lot

Hi,
Is it ok if i put them into one LUN ? say /u02 200M under it are directory CRS and Voting, or it is
better to separate them into two LUNS /u02 /u03.
Thanks a lot

Defining OCR / Voting disks

I followed this guide
http://www.oracle-base.com/articles/11g/OracleDB11gR2RACInstallationOnOEL5UsingVMwareServer2.php#install_grid_infrastructure
to install "clusterware" on my SLES11 maschines.
Question:
In 10g I were able to select which disks a for voting and which are for ocr.
Does it make sense to create different ASM Diskgroups for OCR and Voting, and where can I select which diskgroup should be used ?

zekeriya, you are only right for Version 10. Things changed with Oracle 11. Now you cannot store vote and ocr on raw devices, only in ASM or a cluster filesystem. I know it is a chicken-and-egg problem and I have not quite understood how they do it but that's how things work now.
You can store voting disks and the OCR on Oracle Automatic Storage Management (Oracle ASM), or a certified cluster file system.See this link for more details
http://download.oracle.com/docs/cd/E11882_01/rac.112/e10717/votocr.htm#CHDJDFIC
And yes, it'd recommend to use a special diskgroup just for these.
Bjoern

ASM Disk preparation for Datafiles and FRA in Oracle 10g RAC Inst

Dear Friends,
Please clarify wheteher the below method is correct to confiure ASM disks for Datafiles and FRA
Partitions provided by IT team for OCR and Voting Disk
/dev/sda1 - 150 GB (For +DATA)
/dev/sda2 - 100 GB (For +FRA)
OS : RHEL 5.6 (64 Bit)
kernel version = 2.6.18-238.el5
Steps:(Node1)
1) Install the RPM's for ASM
rpm -Uvh oracleasm-support-2.1.7-1.el5.x86_64.rpm
rpm -Uvh oracleasm-2.6.18-238.el5-2.0.5-1.el5.x86_64.rpm
rpm -Uvh oracleasmlib-2.0.4-1.el5.x86_64.rpm
2) Configure ASM
/etc/init.d/oracleasm configure
Default user to own the driver interface []: oracle
Default group to own the driver interface []: dba
Start Oracle ASM library driver on boot (y/n) [n]: y
Scan for Oracle ASM disks on boot (y/n) [y]:
Writing Oracle ASM library driver configuration: done
Initializing the Oracle ASMLib driver: [ OK ]
Scanning the system for Oracle ASMLib disks: [ OK ]
3) Cretae ASM Disk
/etc/init.d/oracleasm createdisk DISK1 /dev/sda1
/etc/init.d/oracleasm createdisk DISK2 /dev/sda2
4)/etc/init.d/oracleasm status
5)/etc/init.d/oracleasm scandisks
6)/etc/init.d/oracleasm listdisks
7) Nothing to perform on Node2
8) In dbca choose ASM and map the DISK1 for datafiles and DISK2 for FRA
Please confirm the above steps are right?if not please clarify
If DBCA ->ASM doesn't discover my disk then what should be the Discovery path i have to give?
Please refer any document / Metalink ID for the above complete process
Can i have ASM and oracle DB binary in the same home
Regards,
DB

user564706 wrote:
If DBCA ->ASM doesn't discover my disk then what should be the Discovery path i have to give?for asm disk created with oracleasm discovery path variable is ORCL:*
Please refer any document / Metalink ID for the above complete processhttp://docs.oracle.com/cd/B19306_01/install.102/b14203/storage.htm#BABIFHAB
Can i have ASM and oracle DB binary in the same homeyes. unless you want job role seperation or plan to run multiple versions of oracle homes
>
Regards,
DB

CREATING RAW DEVICE IN LINUX

HI ALL,
in redhat linux 5 how to format the disk(ex: /opt,/u01,.....) and make it as raw device for ASM installation

DSP_863977 wrote:
HI ALL,
in redhat linux 5 how to format the disk(ex: /opt,/u01,.....) and make it as raw device for ASM installationit is not possible to change a mount /opt or /u01 for ASM storage.
for learning purpose you can learn with vmware server to create a raw device to configure/install ASM.
Refer the link:- shared storage part for linux5/rhel5
http://oracleinstance.blogspot.com/2010/03/oracle-10g-installation-in-linux-5.html
for more information refer the link:-
http://download.oracle.com/docs/cd/B28359_01/server.111/b31107/asmprepare.htm

Laptop users: Any recommendations for a scratch disk for Illustrator CC?

Hello everyone.
I have been reading into scratch disks and their use with Illustrator, Photoshop, etc. It seems most of the discussions have been about desktop systems though. I am currently using just a 13" late 2013 Macbook Pro w/retina. 256GB SSD and 8GB of RAM.
I actually have a new 1 TB external USB 3.0 WD drive, but I believe it's a 5400rpm and might not be fast enough to be used as a scratch disk? If not, I was thinking of either getting a 7200rpm USB 3.0 external drive, or a USB 3.0 external SSD. Perhaps something like these?
Amazon.com: U32 Shadow™ 240GB External USB 3.0 Portable Solid State Hard Drive SSD: Computers & Accessories
Amazon.com: HGST Touro Mobile Pro 1TB USB 3.0 Portable External Hard Drive, Black (0S03559): Computers &
Illustrator CC is currently just set to use my startup disk as the scratch disk. I don't believe I have run into any problems yet, that might have involved Illustrator needing more than my 8GB ram, and needing to use the scratch disk, but I am not totally sure, and I just want to get one setup anyways, for future use. I am also looking into using this with some light Photoshop use in the future also.
Those of you who use a laptop for Illustrator and other Adobe programs, what do you use for your scratch disk?
Also, where does Illustrator store these scratch disk temp files on a Mac? I have not been able to find any useful information through Google searching so far. Mostly just stuff related to Photoshop scratch disks. I would like to check the location these files are supposed to be stored to see if there's anything taking up HD space that I could take back, and also as a guide to see how much scratch disk space I should look into getting.
Thanks!!!

Yes, you could do it. Remember to follow licensing restrictions. Here's an article on how to import after installing the operating system:
http://docs.info.apple.com/article.html?artnum=25773
Keep around locked in your office an external Firewire hard drive with partitions formatted for both Intel and PowerPC Macs containing all the applications and the operating systems and default user documents you want to keep. These can serve as the basis for the migration assistent import.

Creating sublevels under levels for a dimension in AWM Oracle 10g

In Analytic Workspace Manager Oracle 10g, How can I create more sublevels under a particular level in a dimension?
for eg. Year is a dimension.It has 2 levels , Quarter and Month.
Under Quarter level I want to have Qtr1 and Qtr2 as sublevels.
Under Month level I want to have Jan,Feb,Mar,Apr,May,June as sublevels.
so that Qtr1 has Jan,Feb,Mar, and Qtr2 has Apr,May,June

You need to do this in your source table.
The source table can look something like this
qtr_id, qtr_name, month_id, month_name
1 , Qtr1 , 101 , january
1 , Qtr1 , 102 , febuary
1 , Qtr1 , 103 , march
2 , Qtr2 , 104 , april
2 , Qtr2 , 105 , may
2 , Qtr2 , 106 , june
Then map it to the dimension, and maintain it.
Keep in mind that the member(id) fields need to be unique. I.E january 2007 and january 2006 cannot have the same id.
Ragnar

Partitioning the Harddrive for a scratch disk for CS1 & CS2

Hello all...
I need to see if there is a way to partition the harddrive on the work macs for the use of a scratch disk. We have a dual 2.0 G5 and a Quad.
The only thing is the fact that there are tons of materials on these macs as we are a advertising agency and are in the process of migrating all workable files to a new mac server that was ordered this week.
Can this be done without wiping the HD first?
Our apps mainly CS1 on some machines and CS2 on the Quad seem to run a tad bit slow. Could this be to not having a scratch disk for these adobe programs.
Or should we wait until the server has arrived and then just reformat the machines at that time?
Please help guys.
Dual 2GHz Power PC G5 & 4 x2.5 GHz PowerPC G5 Mac OS X (10.4.6)

Never partition the boot drive. Even if it is used for scratch (and even if you set another drive for primary scratch the boot drive will still be used some). Keep your boot drive free of everything else except the system and applications.
Order some RAM, order a 2nd drive for each system. And a dedicated scratch disk - meaning you would need a 2 or 4-channel SATA host adapter for PCI-X.
You might want to use WD's 10K 150GB Raptor for boot drive (and yes, it works just fine on the DC/Quad G5s). The 10K 74GB Raptor makes a nice disk also and could also be used for scratch disks in a RAID. Use your original OEM drive just for local data.
Photoshop Acceleration Basics (pdf)
about the PS test
The above article and benchmark test utility can help determine what to expect.
I would speculate that you need a minimum of 4-6GB RAM, and 8-10GB of RAM might be in order; along with a 2-4-8 drive RAID as well.
Crucial PowerMac G5 Quad DDR2
AMUG: Sonnet E4P
Barefeats benchtest results
Port Multiplication Guide
G4 MDD 1.25 1.75GB UL3D 15K/10K RAID Mac OS X (10.4.6) SoftRAID 3.5

Multiplexing Voting Disk in Oracle 11gR2 ??

Dear all,
I have single voting disk residing in data group VDOCRDG with external redundancy. I would like to add two more voting disks to this group. Could you please let me know a way to add 2 more vd's to this disk group or should i create a new disk group with normal redundancy ???
Appreciate if you could provide your answer with SQL commands.
database: oracle 11g r2 patch-1
os: RHEL 5.5
RAC: two-node RAC
ASM: voting disk and OCR reside in ASM
let me know if you need more information.
thanks
P

Just out of curiosity:
(Obviously this is a doc question)
is http://tahiti.oracle.com broken for you, so you must ask others to abstract the documentation for free, or don't you understand the line in the Forums ltiEtiquette Post
reading 'Consulting documentation first is highly recommended'?
I'm getting a bit annoyed by people trying to outsource as much of the task they get paid for to a forum of volunteers.
Sybrand Bakker
Senior Oracle DBA

Tool for Viewing 3D data in Oracle 10g

Hi,
I had uploaded the 3D DGN format Data from FME Oracle Suite to Oracle 10g database.
the following tables were created
TESTASH_SDODIM TABLE
TESTASH_SDOLAYER TABLE
TESTASH_SDOGEOM TABLE
TESTASH_SDOINDEX TABLE
TESTASH TABLE
When we are trying to browse the data using AutoCAD of any other viewer, we are unable to find this table in that particular user. Whereas if we run a sql command and run a sql query we are able to get the record count.
Can you suggest something to view this data.
Thanks and Regards
Ashish Dhawan

Ok.. I'd bet then that there are no entries in USER_SDO_GEOM_METADATA AKA MDSYS.SDO_GEOM_METADATA_TABLE. FME view needs to find an entry in there to show you it in the dialog so you can pick the table. The same holds true for views of tables, there needs to be an entry, although I find it somewhat ironic that it then goes on to not know what projection the data is in.
Also, the viewer will pick the first SDO_GEOMETRY column it finds. So if you have more than one, you will then need to make a view for just that column.
Anyway, add an entry into the table, and you should be good to go.
Bryan

Create raw devices for OCR & Voting Disk for Oracle 10g R2 RACLinux 64 bit)

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