We use EMC's BCV for OCFS2 split mirror and it works just fine (10.2.0.3
and RH Linux 4). The only problem is we can't backup to tape directly
from ocfs2 (we are using legato and I haven't heard of any other third
party s/w doing this without rman). So, we copy files to ext3, zip them
and then take tape backup.
Thanks,
Shiva Kambalimath
-----Original Message-----
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Today's Topics:
1. OCF2 and LVM (Riccardo Paganini)
2. Re: OCF2 and LVM (Jordi Prats)
3. Re: OCF2 and LVM (Alexei_Roudnev)
----------------------------------------------------------------------
Message: 1
Date: Mon, 08 Oct 2007 12:35:54 +0200
From: "Riccardo Paganini" <riccardo.paganini@solveit.it>
Subject: [Ocfs2-users] OCF2 and LVM
To: ocfs2-users@oss.oracle.com
Message-ID: <web-571788@solveit.it>
Content-Type:
text/plain;charset="iso-8859-1";format="flowed"
Does anybody knows if is there a certified procedure in to
backup a RAC DB 10.2.0.3 based on OCFS2 ,
via split mirror or snaphots technology ?
Using Linux LVM and OCFS2, does anybody knows if is
possible to dinamically extend an OCFS filesystem,
once the underlying LVM Volume has been extended ?
Thanks in advance
Riccardo Paganini
------------------------------
Message: 2
Date: Mon, 08 Oct 2007 20:20:08 +0200
From: Jordi Prats <jprats@cesca.es>
Subject: Re: [Ocfs2-users] OCF2 and LVM
To: Riccardo Paganini <riccardo.paganini@solveit.it>
Cc: ocfs2-users@oss.oracle.com
Message-ID: <470A74D8.9090702@cesca.es>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi,
I'm not an expert on oracle, but I don't think using a snapshot is a
recommended backup solution. You should use data pump or exp utilities
to backup your database.
To extend your fs, tune2fs.ocfs2 requires you to umount it, according to
it's man page:
=tunefs.ocfs2 is used to adjust OCFS2 file system parameters on disk.
In order to prevent data loss, tunefs.ocfs2 will not perform any
action on the specified device if it is mounted on any node in the
cluster. This tool requires the O2CB cluster to be online.
=
The concrete command should be: tune2fs.ocfs2 -S /dev/LVM_volume
I don't know if there's any way to extend it without umounting it.
If you want to extend your fs without umounting it you should use ASM
instead of OCFS2.
regards,
Jordi
Riccardo Paganini wrote:> Does anybody knows if is there a certified procedure in to backup a
RAC > DB 10.2.0.3 based on OCFS2 ,
> via split mirror or snaphots technology ?
>
>
> Using Linux LVM and OCFS2, does anybody knows if is possible to
> dinamically extend an OCFS filesystem,
> once the underlying LVM Volume has been extended ?
>
> Thanks in advance
> Riccardo Paganini
>
> _______________________________________________
> Ocfs2-users mailing list
> Ocfs2-users@oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>
>
------------------------------
Message: 3
Date: Mon, 8 Oct 2007 11:49:29 -0700
From: "Alexei_Roudnev" <Alexei_Roudnev@exigengroup.com>
Subject: Re: [Ocfs2-users] OCF2 and LVM
To: "Jordi Prats" <jprats@cesca.es>, "Riccardo
Paganini"
<riccardo.paganini@solveit.it>
Cc: ocfs2-users@oss.oracle.com
Message-ID: <069101c809db$f5540070$7031a8c0@exigengroup.com>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
I dont knoiw any lvm technology which can make a snapshort in clustered
environment, so better forget this idea.
Recommended method to do oracle backups is rman. Any violation of this
brings you into the swamp of possible oracle bugs.
----- Original Message -----
From: "Jordi Prats" <jprats@cesca.es>
To: "Riccardo Paganini" <riccardo.paganini@solveit.it>
Cc: <ocfs2-users@oss.oracle.com>
Sent: Monday, October 08, 2007 11:20 AM
Subject: Re: [Ocfs2-users] OCF2 and LVM
> Hi,
> I'm not an expert on oracle, but I don't think using a snapshot is
a
> recommended backup solution. You should use data pump or exp utilities
to > backup your database.
>
> To extend your fs, tune2fs.ocfs2 requires you to umount it, according
to > it's man page:
>
> => tunefs.ocfs2 is used to adjust OCFS2 file system parameters on disk.
In > order to prevent data loss, tunefs.ocfs2 will not perform any
action > on the specified device if it is mounted on any node in the cluster.
This > tool requires the O2CB cluster to be online.
> =>
> The concrete command should be: tune2fs.ocfs2 -S /dev/LVM_volume
>
> I don't know if there's any way to extend it without umounting it.
>
> If you want to extend your fs without umounting it you should use ASM
> instead of OCFS2.
>
> regards,
> Jordi
>
> Riccardo Paganini wrote:
>> Does anybody knows if is there a certified procedure in to backup a
RAC >> DB 10.2.0.3 based on OCFS2 ,
>> via split mirror or snaphots technology ?
>>
>>
>> Using Linux LVM and OCFS2, does anybody knows if is possible to
>> dinamically extend an OCFS filesystem,
>> once the underlying LVM Volume has been extended ?
>>
>> Thanks in advance
>> Riccardo Paganini
>>
>> _______________________________________________
>> Ocfs2-users mailing list
>> Ocfs2-users@oss.oracle.com
>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>
>>
>
> _______________________________________________
> Ocfs2-users mailing list
> Ocfs2-users@oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>
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