Re: Data Mirroring on two data centers -- How to use ASM ?

Madhu,
I would like to propose again to look for another solution. Host based mirroring to remote storage box will most probably give you a lot of problems managing it. I am not even talking about performance (well, you might just have a nice dark fiber laid there).

Please consider Oracle Data Guard or your vendor's technology. For example, look at Disaster Recovery Issues and Solutions from Hitachi's web site (http://www.hds.com/download.html?url=/pdf/wp_117_02_disaster_recovery.pdf&region=global&id=219&type=White%20Papers&lang=English&title=Disaster%20Recovery%20Issues%20and%20Solutions).

2006/5/19, Madhu V <db.mail.1_at_gmail.com>:
>
> Excellent inputs. Thanks to all of you !!
>
> ASM might not be a best option for me by considering a two node cluster w/
> very large amounts of data getting mirrored across two storage arrays. So my
> other option would be GPFS. Are there any similar/other concerns with GPFS
> in the same architecture ?
>
> regards,
> Madhu
>
>
>
> Alex Gorbachev wrote:
> Salem, if you have a descent size database than it's quite dangerous
> option. I mentioned reference to my blog in previous post - if you
> read it you will understand why. Even short interruption in
> connectivity to remote site might cause ASM to start rebalancing and
> recovery from this is a non-trivial task.
>
> Replication via Oracle Data Guard or third party tools is a much
> better option. Just storing backups remotely is a much more reliable
> alternative than distance storage box with ASM.
>
> 2006/5/19, Ghassan Salem <salem.ghassan_at_gmail.com>:
>
> 1- you can use ASM to mirror your data on the remote site, mainly by using a
> 'failover' disk group. It's very easy to setup.
>
>
>
>

-- 
Best regards,
Alex Gorbachev

http://oracloid.blogspot.com
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