Re: Linux Native Multipath, ASM and Instance Failures
From: Niall Litchfield <niall.litchfield_at_gmail.com>
Date: Fri, 27 Jul 2012 19:56:56 +0100
Message-ID: <CABe10sa+8y1o5w284-dspRMbB4=4BvOzd-9t9ucrnLrAjTE8fg_at_mail.gmail.com>
On Fri, Jul 27, 2012 at 10:41 AM, Ls Cheng <exriscer_at_gmail.com> wrote:
>
> I noticed that in old storage, HP EVA, when I run iostat I can see that all
> /dev/sd* corresponding to a /dev/mapper/ have activity but with 3PAR I only
> see one of them active, can you try and see if you observe samething?
Date: Fri, 27 Jul 2012 19:56:56 +0100
Message-ID: <CABe10sa+8y1o5w284-dspRMbB4=4BvOzd-9t9ucrnLrAjTE8fg_at_mail.gmail.com>
On Fri, Jul 27, 2012 at 10:41 AM, Ls Cheng <exriscer_at_gmail.com> wrote:
>
> I noticed that in old storage, HP EVA, when I run iostat I can see that all
> /dev/sd* corresponding to a /dev/mapper/ have activity but with 3PAR I only
> see one of them active, can you try and see if you observe samething?
what does mpath.conf look like for one of your /dev/mapper devices?
-- Niall Litchfield Oracle DBA http://www.orawin.info -- http://www.freelists.org/webpage/oracle-lReceived on Fri Jul 27 2012 - 13:56:56 CDT