Checking Raw devices on Linux box

How i can check raw device configured on Linux box?
Like System admin configured dev/raw/raw1 and dev/raw/raw2
how i can check this? With df command i am not seeing this...

Is it Ok for RAC or not
[oracle@test1 ~]$ sudo raw -qa
/dev/raw/raw1: bound to major 8, minor 1
/dev/raw/raw2: bound to major 8, minor 2
/dev/raw/raw3: bound to major 8, minor 3
[oracle@test2 ~]$ sudo raw -qa
/dev/raw/raw1: bound to major 8, minor 49
/dev/raw/raw2: bound to major 8, minor 50
/dev/raw/raw3: bound to major 8, minor 51

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Raw devices under Linux 2.4.x

Hi.
Does Oracle 8.1.7 support raw devices under linux 2.4.x? Is there some documentation? What advantages/disadvantages? Is it worth moving from ext2 to raw?

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Andrij Korud ([email protected]):
Hi.
Does Oracle 8.1.7 support raw devices under linux 2.4.x? Is there some documentation? What advantages/disadvantages? Is it worth moving from ext2 to raw?<HR></BLOCKQUOTE>
Oracle does fully support raw devices. For a mini cookbook, search on "raw device". I've put up a mini story on how to make raw redologs.

Create the raw devices under Linux

Hi,
Hoe can I create the raw devices under Linux?

Hi,
I just have created two raw devices,
1, /etc/sysconfig/rawdevices
/dev/raw/raw1 /dev/hda2
/dev/raw/raw2 /dev/hda3
2, chown oracle:dba /dev/raw/rawN and chmod 660 /dev/raw/rawN
3, after restart the machine, start I runInstaller again.
But Oracle can still not find the candidate disks, even after give the path /dev/raw
Why?

How use raw device in linux?

Hi all.
scene:
oracle 8.1.6.1
Linux red hat 6.1
I'm trying to create a database with raw device.
In HPux the raw device is /dev/rdsk but I found no documentation for linux raw device.
thanks for any help.
null

Prove it: try to create file large than 2Gb on 8.1.6 under Linux (under NT it works) and try to use raw partitions. About Pmon ORA-601 simply check Metalink.
I know Oracle, it is my work. I like Oracle database. I think, Linux is the best OS. But i want Oracle to solve current bugs more quickly, for a customers could not say "Oracle on Linux - it ***** ". Because, customers must to know about problems to avoid it. It is a more biger problem, when database is crashed.

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

VISA do not find RAW device in linux??

Hy. I have usb device with product ID and vendor ID. My operational system is Linux Fedora. Linux system find my device,but Labview (VISA) do not find this device.Can somebody tell my, where is the problem??

Hello qwqwqw,
Dennis is correct, and that is the document you want to reference. Specifically, Part 4 is about USB on Linux and Mac. Officially though, National Instruments does not offer email or phone support for Linux Fedora.
Good luck with your application!
Meghan
Applications Engineer

Content Server 6.40 on Raw Devices

Hi Folks!
We'd like to install a Content Server 6.40 using raw devices (on Linux Suse SLES9).
Do we need to install the MaxDB, if we use raw devices? At this point the InstGuide does not give a clear description of what to do. It looks we can use the raw devices directly without having a database instance. Is this right?
Is there any disadvantage compared to using the access via file system and DB?
Any hint is appreciated...
Best regards
Torsten

Hi Torsten,
As far as i know SAP Content Server use MaxDB or a File System, I have use it with MaxDB with good results, anyhow.... read the following for details,
http://help.sap.com/saphelp_nw04s/helpdata/en/40/32104211625933e10000000a155106/content.htm
Regards
Juan
Please reward with points if helpdul

10.1.0.3 on RH4(Centos) + Raw devices + ASM + RAC

Hi,
I'm just wondering if anyone here tried installing a single node RAC on 2 instance using ASM on Oracle 10g (10.1.0.3)?
I am using RH4(CENTOS 4.1), Oracle 10.1.0.3 + CRS 10.1.0.3 on fake raw devices in Linux.
I have been able to install the CRS and Oracle database software successfully.
All CRS services and listener are up and running.
crs_stat command return successful results.
srvctl status nodeapps -n <node_name> also returns successful results.
However, when I attempt to startup the ASM instance, I keep encountering these errors:
ORA-00603:ORACLE server session terminated by fatal error
ORA-27504:IPC error creating OSD context
The ORA-00603 error message will appear immediately in the SQLPLUS prompt when I try to startup ASM instance.
Both errors will be logged in alert.log and trace files, no other useful error messages besides these errors.
When I attempt to create a normal database instance using datafiles on the same machine, these errors also appear again!
So, I figure its got nothing to do with the raw devices since my OCR location and Voting devices are using the same raw devices on Linux.
Anyone did the same thing like me and faced similar problems.... please help.
Cheers

You can use dbca to create ASM instance to get rid of the manual copy business.
In realease 1, you can invoke dbca, choose database instance and walk through still you reach storage clause and choose asm and DBA will create ASM instance on both nodes.
Ensure that you choose cluster install option and all the nodes at the initial stages.

Required RPM'S to install ECM 11.1.1.5 on Linux box

I am trying to install oracle ECM 11.1.1.5 on linux os, before installaion i need to check RPM'S on linux box
where I can the get the required RPM'S parameter inforamation,

I believe it's a certified combination, but I didn't have great luck with Windows 2003 64-bit. Perhaps you'll have better luck with Windows 2008.
I tried doing an installation on Windows 2003 64-bit connecting to an 11.2 Oracle DB on Solaris, and had problems during the installation. The installer totally failed with the 64-bit Oracle client installed. It made better progress with the 32-bit client, but evenutally errored with a 32-bit/64-bit version mismatch when loading the library. I opened a case with Oracle support. We did several web sessions so they could observe. Ultimately they suggested that I should do the installation with the 32-bit client, wait for it to fail with the version mismatch, uninstall the 32-bit client, install the 64-bit client, and complete the installation. Seemed a bit kludgy to me, so I reverted to Windows 2003 32-bit, which worked just fine.

Asmlib or Linux Raw device

I have to manage a new ASM environment
What is the easiest way to find out if Asmlib OR Linux raw files are used in the ASM filesystem ?

if you wish to do this even without opening an ASM instance you can use kfed. Here is the steps for ASMLIB (You can use a similat one for raw devices):
1. List the disks labeled by ASMLIB
[root@consolidaterac2 ~]# /etc/init.d/oracleasm listdisks
DISK01
DISK02
DISK03
DISK04
2.Read those files with kfed and grep the diskgroup name:
consolidaterac2@oracle $ kfed read /dev/oracleasm/disks/DISK03 |grep grpname
kfdhdb.grpname: DATA ; 0x048: length=4
3. Check the header status whether the disk is still a member of the diskgroup or just a FORMER member of the group ( seeing a proper diskgropname doesn't always means disk is still a member)
if it is a member then
consolidaterac2@oracle $ kfed read /dev/oracleasm/disks/DISK03 |grep hdrsts
kfdhdb.hdrsts: 3 ; 0x027: KFDHDR_MEMBER
if not
consolidaterac2@oracle $ kfed read /dev/oracleasm/disks/DISK04 |grep hdrsts
kfdhdb.hdrsts: 4 ; 0x027: KFDHDR_FORMER
Regards,
HS

Raw Device Validation Check for Name Failed..

Hi all,
I have installed Oracle Clusterware 10.2.0.4 and Oracle database software 10.2.0.4 on Solaris SPARC 10 and i using a NAS storage for the same
And when i try to create a database using DBCA i got the following error.
Raw Device Validation Check for Name /u03/oradata/spfile/spfile{SID}.ora failed. The specified file /u01/oradata/spfile/spfile{SID}.ora doesnot exit.Please a existing file.
Note: i am not using ASM., i am using RAW device for Database
Any help highly thankful
-Arun

Hi
this is how i have mounted the NAS...
10.0.0.0:/vol/prodt3_vol16/ora_dbfr_inn1s - /u07/DBFR/INS nfs - yes rw,bg,hard,nointr,rsize=32768,wsize=32768,proto=tcp,noac,forcedirectio,vers=3,suid
how do i ensure that it is not being used....we should not use ASM its an client requinment ...
Thanks

How to check space on asm and raw device?

Hi All,
I want to know how to check the space on asm device.
we are using asm device which is on raw partition.
Our archive gets full.I need to check the space on asm archve partiotion.
how can i check the archive destination space?
we are using raw device partition for crs and voting device.
how can we check the space on raw device and how can we know which device is in use and which are not in use
Thanks in advance

4 - 5 raw partitions...
What oracle version?
Install OCR + VOTE in raw device better than OCFS2. if you use 10g to 11gR1.
If use 11gR2,keep OCR + VOTE in ASM Disk Group.
you can check which raw device OCR:
$ ocrcheck
VOTEDISK:
$ crsctl query css votedisk
On 10g if use raw device for OCR + votedisk: recommend 1 file = 250M
11g recommend 1 file = 512M
Good Luck

RAW device validation check

While configuing database using DBCA it shows
"Raw device validation check for Control file "/var/opt/oracle/oradata/orcl/control01.ctl"
failed, stat for /var/opt/oracle/oradata/orcl/control01.ctl failed.

Do you really want to create a database on raw devives or did you accidently select the 'raw device' button? "/var/opt/oracle/oradata/orcl/control01.ctl" doesn't look like a raw device, it could be at most a link. Generally raw devices can be checked with 'dd if=<shared config file> of=/dev/null bs=<db_block_size>' .
Werner

Raw device access checking

how i can check that OCR & Voting disk can access raw devices? & how i can check the size of raw devices also?

Once you find the raw devices, see your thread from yesterday on the subject, you can /sbin/fdisk -l <device name> to find information about the size.

Raw device size checking

How i can check the /dev/raw/raw* size and all information regarding that.

Have you tried /sbin/fdisk -l <device>
raw device permissions
raw device access checking

Checking Raw devices on Linux box

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