Re: Filesystem for Archive logs in RAC

From: jason arneil <jason.arneil_at_gmail.com>
Date: Thu, 1 Sep 2011 12:53:59 +0100
Message-ID: <CAG_4LR3KcjArAnca9d5593e8WLiTYcLfNu9TFOEQULPrjg4_Zw_at_mail.gmail.com>

Hi,
I'd agree with the FRA option, but if you have a small number of nodes, and you want the comfort of having your archive logs outwith ASM, you can potentially implement cross instance archiving to local storage on all nodes.

Essentially all nodes then have copies of all archived redo, and you neatly swerve around the problem Tim mentions of an archive log being unavailable should a particular node crash. In some ways you could argue this is better than having your eggs all in the one basket of 1 storage array.

jason.

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http://jarneil.wordpress.com


On 31 August 2011 21:47, Anurag Verma <anuragdba_at_gmail.com> wrote:



>

> I am in the process of configuring 11gR2 RAC on Solaris.

> We are going to use ASM for shared storage for database files.

> For Archive log files, we are going to put them in filesystem.

> So in order to put the files in the filesystem, can you mount the same

> filesystem (from SAN) on both RAC nodes same time,

> so that RAC instances can write the archive logs in to the same directory?

> How you guys have done at your setup?

>

> Did you with filesystem for archive logs ? If yes, how did you do that?

>

> I remember when I worked at one of my previous company, they were using

> NetApp filers and we were using

> filesystem for archive logs. Dont remember exactly how the storage admin

> did that.

>

> --

>

> Anurag Verma,

> Database Administrator

> ERCOT(Electric Reliability Council of Texas),

> Texas 76574

>



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Received on Thu Sep 01 2011 - 06:53:59 CDT