Comments on: Oracle and resilvering on AIX http://technology.amis.nl/2006/04/19/oracle-and-resilvering-on-aix/?utm_source=rss&utm_medium=rss&utm_campaign=oracle-and-resilvering-on-aix Tue, 11 Jun 2013 22:09:58 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: Arnoud Roth http://technology.amis.nl/2006/04/19/oracle-and-resilvering-on-aix/#comment-3149 Arnoud Roth Wed, 26 Apr 2006 10:41:45 +0000 http://technology.amis.nl/blog/?p=1156#comment-3149 vw393,
Thanks for your comment. I was expecting a comment like this, because this is something that has been boggling my mind as well. Apparently, Oracle is able to identify that the LV that it is writing to is mirrored. It seems rather logical to me that Oracle needs some specific information about the LV in order to write to it. One of the things that Oracle needs is LV configuration. This probably is because Oracle is the owner of the device. From the definition of the LV, Oracle derives that there are multiple copies of the data (mirror), and will act accordingly.
Personally I would like to know in more detail how Oracle does this, but it is hard to find the correct people within Oracle that know all about the details of this feature.
I hope this satisfies your question.

Arnoud

]]> By: vw393 http://technology.amis.nl/2006/04/19/oracle-and-resilvering-on-aix/#comment-3148 vw393 Sat, 22 Apr 2006 05:52:15 +0000 http://technology.amis.nl/blog/?p=1156#comment-3148 Hi Gurus.

One thing is not clear to me here: when it says
[..] the resilvering process performs a checksum on the data blocks of all of the copies [..]

I thought that Oracle can’t see the two copies of a mirror, what it sees is just the volume. Or am I missing something?

Regs

]]> By: Arnoud Roth http://technology.amis.nl/2006/04/19/oracle-and-resilvering-on-aix/#comment-3147 Arnoud Roth Fri, 21 Apr 2006 08:22:47 +0000 http://technology.amis.nl/blog/?p=1156#comment-3147 Good point. Fixed it immediately…thanks ;-)

]]> By: Marco Gralike http://technology.amis.nl/2006/04/19/oracle-and-resilvering-on-aix/#comment-3146 Marco Gralike Thu, 20 Apr 2006 21:00:00 +0000 http://technology.amis.nl/blog/?p=1156#comment-3146 Good read (je hebt hem onder elk item gepost ;-) behalve onder “database” ;-) )

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