Re: [suse-oracle] OUI ASMLIB disks recognition (ORCL:*)

It is standard (multipath). What I _ALWAYS_ do is creating aliases in 
multipath.conf so that I have al disks as

 /dev/mapper/DB1, /dev/mapper/CRS1, and so on

and not /dev/dm* etc.


----- Original Message ----- 
From: "Arturo Gutierrez" <[email protected]>
To: <[email protected]>
Sent: Thursday, July 01, 2010 1:35 PM
Subject: Re: [suse-oracle] OUI ASMLIB disks recognition (ORCL:*)


Hello,
I've modified the /etc/sysconfig/oracleasm file and the parameter
ORACLEASM_SCANORDER=dm.
And now the installer discover the ASMLIB disks automatically.

Because the multi-path was created usind dm devices.

oracleasm createdisk ocrvd01 /dev/dm-1
oracleasm createdisk ocrvd02 /dev/dm-5
oracleasm createdisk ocrvd03 /dev/dm-9
oracleasm createdisk data01 /dev/dm-2
oracleasm createdisk data02 /dev/dm-6
oracleasm createdisk data03 /dev/dm-10
oracleasm createdisk reco01 /dev/dm-3
oracleasm createdisk reco02 /dev/dm-8
oracleasm createdisk reco03 /dev/dm-11
The Metalink note 359266.1 help something to understand this.

Any has any doc reference to multi-path document on Suse/Linux?

Thanks
Arturo


Arturo Gutierrez Gomez escribió:
> Hello,
>
> I'm installing Oracle Grid infraestructure (11g R2) in a SLE11 SP0
> enviorement.
>
> And using ASM and ASMLIB how storage option.
> In the screen to create the diskgroup to store OCR and Voting disks is
> empty and if I try use the change discovery path to ORCL:* doesn't work.
>
> I've configured the asmlib driver:
>
> castorrac:~ # rpm -qa | grep oracleasm
> oracleasmlib-2.0.4-1.SLE11
> oracleasm-2.0.5-7.6
> oracleasm-kmp-default-2.0.5_2.6.27.19_5-7.6
> oracleasm-support-2.1.3-1.SLE11
>
> castorrac:~ # cat /etc/*release
> SUSE Linux Enterprise Server 11 (x86_64)
> VERSION = 11
> PATCHLEVEL = 0
> LSB_VERSION="core-2.0-noarch:core-3.2-noarch:core-4.0-noarch:core-2.0-x86_64:core-3.2-x86_64:core-4.0-x86_64"
>
> castorrac:~ # uname -a
> Linux castorrac 2.6.27.45-0.1-default #1 SMP 2010-02-22 16:49:47 +0100
> x86_64 x86_64 x86_64 GNU/Linux
>
>
> And executing some testing commands seems fine.
> castorrac:~ # df -ha
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/cciss/c0d0p3     118G   51G   62G  46% /
> proc                     0     0     0   -  /proc
> sysfs                    0     0     0   -  /sys
> debugfs                  0     0     0   -  /sys/kernel/debug
> udev                  7.9G  1.2M  7.9G   1% /dev
> devpts                   0     0     0   -  /dev/pts
> /dev/cciss/c0d0p1    1004M   47M  907M   5% /boot
> fusectl                  0     0     0   -  /sys/fs/fuse/connections
> *oracleasmfs              0     0     0   -  /dev/oracleasm*
> /proc                    0     0     0   -  /var/lib/ntp/proc
> gvfs-fuse-daemon      0.0K  0.0K  0.0K   -  /home/grid/.gvfs
>
> castorrac:~ # /etc/init.d/oracleasm status
> Checking if ASM is loaded: yes
> Checking if /dev/oracleasm is mounted: yes
> castorrac:~ # /usr/sbin/oracleasm-discover
> Using ASMLib from /opt/oracle/extapi/64/asm/orcl/1/libasm.so
> [ASM Library - Generic Linux, version 2.0.4 (KABI_V2)]
> Discovered disk: ORCL:DATA01 [209728575 blocks (107381030400 bytes),
> maxio 512]
> Discovered disk: ORCL:DATA02 [209728575 blocks (107381030400 bytes),
> maxio 512]
> Discovered disk: ORCL:DATA03 [209728575 blocks (107381030400 bytes),
> maxio 512]
> Discovered disk: ORCL:OCRVD01 [2120580 blocks (1085736960 bytes),
> maxio 512]
> Discovered disk: ORCL:OCRVD02 [2120580 blocks (1085736960 bytes),
> maxio 512]
> Discovered disk: ORCL:OCRVD03 [2120580 blocks (1085736960 bytes),
> maxio 512]
> Discovered disk: ORCL:RECO01 [374071192 blocks (191524450304 bytes),
> maxio 512]
> Discovered disk: ORCL:RECO02 [374071192 blocks (191524450304 bytes),
> maxio 512]
> Discovered disk: ORCL:RECO03 [374071192 blocks (191524450304 bytes),
> maxio 512]
>
> castorrac:~ # ls -l /dev/oracleasm/disks/
> total 0
> brw-rw---- 1 grid asmdba 8,  2 Jun 21 12:30 DATA01
> brw-rw---- 1 grid asmdba 8, 18 Jun 21 12:30 DATA02
> brw-rw---- 1 grid asmdba 8, 34 Jun 21 12:30 DATA03
> brw-rw---- 1 grid asmdba 8,  1 Jun 21 12:30 OCRVD01
> brw-rw---- 1 grid asmdba 8, 17 Jun 21 12:30 OCRVD02
> brw-rw---- 1 grid asmdba 8, 33 Jun 21 12:30 OCRVD03
> brw-rw---- 1 grid asmdba 8,  3 Jun 21 12:30 RECO01
> brw-rw---- 1 grid asmdba 8, 19 Jun 21 12:30 RECO02
> brw-rw---- 1 grid asmdba 8, 35 Jun 21 12:30 RECO03
>
>
>
> If I use the string /dev/oracleasm/disks/ as Disk discovery path, the
> screen is populated with the asm disks.
> Reading some metalink note(Not up to 11G R2) say that use of this
> string invalidate ASMLIB propertys.
>
> Any know if work ORCL:* disk string in this platform or I have some
> issue with the ASMLIB installation.
>
> Many thanks
> Best regards
> Arturo
>
>
>
>
>
>


-- 




          Arturo Gutiérrez Gómez


          Formador/Consultor  Tecnologias Oracle

Oracle DBA Certified Professional OCP  [7.3-10g]
Oracle Real Application Clusters Certified profesional


          Movíl 61 64 70 190




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