Does ASM's EXTERNAL REDUNDANCY concatenate?

  • From: Martin Klier <usn@xxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Mon, 30 Jun 2008 11:54:19 +0200

Hi list,

does ASM's EXTERNAL REDUNDANCY feature stripe the data or does it
concatenate them?

Background:
Oracle EE x86_64 on Linux, Version 10.2.0.4

Setup:
2x Adaptec 5085, each connected to an own SAS JBOD with 16x 1TB HDD, one
of them is global hot spare disk

I want a diskgroup with 12TB in size, 6TB on each JBOD.

Another sad thing: Due to Metalink note 6453944.8, I can't create ASM
diskgroups with disk members larger than 2TB due to corruption risks and
ORA-15099 (which is really nasty!).

Any ideas to the question or to my sceanrio in general are greatly
appreciated!

Thanks in advance
Martin Klier

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