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Re: ASM shared devices

From: oracle sos <sosoracle_at_gmail.com>
Date: Wed, 10 May 2006 14:06:11 -0400
Message-ID: <352615860605101106s67488c93ic7dc35d7f5f47224@mail.gmail.com>


thanks to correct my mistake. I re-created the partitions and now both servers can see the same asm disks.

Another question that bother me is, if I create ASM disk group, DATA_1, on Server A using VOL1(/dev/sde1), can I mount it on ServerB? I got

ora-15003, Disk Group DATA_1 already mounted in another lock name space

Do I miss something again, or this is not an approach in +ASM?

Thanks again for all the help.
Cindy

On 5/10/06, Christo Kutrovsky <kutrovsky.oracle_at_gmail.com> wrote:
>
> You approach seems incorect.
>
> The devices are shared right ? So why do you re-create partitions on
> the server B, after you have created them and prepared your devices on
> Server A ?
>
> The procedure should be:
>
> Server A
> fdisk /dev/sde
> -> create partition
> fdisk /dev/sdd
> -> create partition
> /etc/init.d/oracleasm createdisk ... /dev/sde1
> /etc/init.d/oracleasm createdisk ... /dev/sdf1
>
> Server B
> fdisk /dev/sde
> "p" for print, you should see the partition created
> "w" to rewrite it, and refresh in memory partition table
> fdisk /dev/sdf
> "p" for print, you should see the partition created
> "w" to rewrite it, and refresh in memory partition table
>
> /etc/init.d/oracleasm scandisks
> /etc/init.d/oracleasm listdisks
> -> should show your marked devices
>
> Use dbca to create diskgroups.
>
> --
> Christo Kutrovsky
> Senior Database/System Administrator
> The Pythian Group - www.pythian.com
> I blog at http://www.pythian.com/blogs/
>
> On 5/10/06, oracle sos <sosoracle_at_gmail.com> wrote:
> >
> > Hello,
> >
> > Here is what I am trying to do.
> >
> > two servers: Let's call A and B in short
> > ASMLib 1.0 installed and configured on server A and B
> > two shared raw devices /dev/sde and /dev/sdf
> >
> > Server A
> > create 1 partition on each of them, /dev/sde1 and /dev/sdf1, using fdisk
> > command
> > /etc/init.d/oracleasm createdisk VOL1 /dev/sde1
> > /etc/init.d/oracleasm createdisk VOL2 /dev/sdf1
> > /etc/init.d/oracleasm listdisks (shows VOL1 and VOL2)
> > run dbca to configure ASM: DATA_1 --> VOL1 and DATA_2 --> VOL2
> >
> > Server B
> > use sfidk -R to create 1 partition on /dev/sde and /devsdf
> > /etc/init.d/oracleasm scandisks <---- want to give server B a notice of
> > VOL1 and VOL2 ASM diskgroups
> > /etc/init.d/oracleasm listdisks <----- show nothing ????
> > run dbca to configure ASM: <--- can't see any asn disk group(s)
> >
> > Does anyone can point it out to the missing/wrong procedure of the above
> > configuration?
> >
> > If I use /etc/init.d/oracleasm createdisk VOL1 /dev/sde1 on Server B, I
> can
> > see the diskgroup while configuring ASM, but I got,
> >
> > ora-15003, Disk Group DATA_1 already mounted in another lock name space
> >
> > *****************************
> >
> > Does anyone have any idea of how to make that working? Many thanks for
> all
> > the help.
> > Cindy
>
>
> --
> Christo Kutrovsky
> Senior Database/System Administrator
> The Pythian Group
>

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Received on Wed May 10 2006 - 13:06:11 CDT

Original text of this message

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