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Re: Using ASM for shared linux filesystem storage?

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On 30.07.2016 20:16, Doug OLeary wrote:

> Thanks for the response.  I'm hearing rumors that sanity may be
> prevailing.  I'm on a trip atm, and the only thing I saw was the
> service call asking for this to happen.

It's always good if sanity gets the upper hand.  There is just too much 
confusion out there.  Good luck!

> We (a minion and I) keyed in on the non-cluster aware filesystem on a
> clustered disk storage contradiction as well.  Other that common
> sense, I was hoping for a link which said "these are the filesystems
> that oracle supports on ASM".  My googling didn't show anything like
> that, though.

Unfortunately my active ASM usage is too long ago to be of much help 
here.  I tend to believe though, that you cannot have an ASM volume 
appear as a block device in the OS - which is what you would need.  I 
tried to dig around a bit but only found sites discussing usage of a 
block device for storage of ASM - not how you can make an ASM disk 
appear as a block device.

And if you think about it, this makes sense: Oracle database does not 
need a filesystem.  It just needs something where to store blocks for 
each data "file" in random access manner.  ASM gives you that and there 
does not seem to be any need to expose ASM volumes other than through 
some libraries that the database is using.

> If it turns out that sanity doesn't prevail, we'll have to start the
> push back.

:-)

> Thanks again for the info and for the link  Haven't looked at it yet
> but it's definitely on the to-do list.

You're welcome!  Please do keep us updated.  It's always interesting to 
see what eventually turns up.

Kind regards

	robert

-- 
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Using ASM for shared linux filesystem storage? dkoleary@olearycomputers.com - 2016-07-30 05:19 -0700
  Re: Using ASM for shared linux filesystem storage? Robert Klemme <shortcutter@googlemail.com> - 2016-07-30 18:30 +0200
    Re: Using ASM for shared linux filesystem storage? Doug OLeary <dkoleary@olearycomputers.com> - 2016-07-30 11:16 -0700
      Re: Using ASM for shared linux filesystem storage? Robert Klemme <shortcutter@googlemail.com> - 2016-07-31 11:03 +0200

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