Re: Raw device or Block device?
- From: "Mark J. Bobak" <mark@xxxxxxxxx>
- To: napacunningham@xxxxxxxxx
- Date: Wed, 7 Jan 2015 13:12:03 -0500
Hi Michael,
Your best argument is that raw devices are deprecated since Linux kernel
2.6.
See here:
http://docs.oracle.com/cd/B19306_01/relnotes.102/b15659/toc.htm#LADBN127
Note, in particular, the first line of section 4.14.1:
"With the Linux 2.6 kernel, support for raw devices is deprecated."
That should provide you all the ammunition you need.
Hope that helps,
-Mark
On Wed, Jan 7, 2015 at 12:38 PM, Michael Cunningham <
napacunningham@xxxxxxxxx> wrote:
> Hello List, Happy New Year.
>
> In regards to raw devices or block level devices we are having a debate
> with the storage team and I don't know the answer so here it goes.
>
> The question is can you think of any benefits to using block level devices
> vs. raw devices? If there is performance improvement please help me in how
> to prove it.
>
> Another reason I want block devices is so I can get the server to
> automatically recover if there is a crash. Right now the storage admins
> must be available to remount all the raw devices. That means that Oracle
> HAS doesn't matter because there is no storage for ASM. That's one
> motivation.
>
> --
> Michael Cunningham
>
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