experimenting with dmraid - disk status

[Heinz Mauelshagen]

On Mon, 2011-05-02 at 15:19 -0400, Sandra Escandor wrote:
> After I installed the dmeventd package, I notice the following:
> (general setup: ICH10R controller, raid0+1, 4 member disks)
> - When I pull out a drive, then run dm_dso_reg_tool -m, the section
> "Error Events Recorded by Kernel" for the superset and two subsets are
> still 0. Is this expected?

Unless you performed io on the set.

> - (Drive still physically disconnected) when I run dmraid -n, the
> metadata shows that the status of the disk that I pulled out still has
> the same status as the other disks which are plugged in (i.e
> disk[0].status: 0x53a is shown for all of the disks, even the one that
> I pulled out).

Same as above.

Heinz

> 
> The steps that I took to set up the device mapper raid event monitoring
> are basically the same as the one found in: "How to Setup Device Mapper
> Raid event Monitoring_0.74.pdf"
> (http://sources.redhat.com/lvm2/wiki/DMRAID_Eventing)
> EXCEPT: 
> * I obtained the dmeventd package from the Ubuntu repository (Maverick)
> * I didn't install the patch (since I'm using kernel 2.6.35)
> * I changed the makefile of libdmraid-events so that it would link with
> the pthread library (i.e added -lpthread to the makefile).
> 
> Is there another package that I need to install, or have I not set this
> up properly?
> 
> Thanks for the clarifications,
> Sandra
> 
> -----Original Message-----
> From: Heinz Mauelshagen [mailto:heinzm at redhat.com] 
> Sent: Friday, April 29, 2011 10:14 AM
> To: Sandra Escandor
> Subject: RE: experimenting with dmraid - disk status
> 
> On Fri, 2011-04-29 at 08:00 -0400, Sandra Escandor wrote:
> > I forgot to mention my metadata type. Yes, I'm using Intel software
> raid
> > (so it's in isw format). Where would I be able to get this plugin?
> 
> You should get them with any distros dmraid-events package.
> 
> Heinz
> 
> > 
> > Thanks,
> > Sandra
> > 
> > -----Original Message-----
> > From: ataraid-list-bounces at redhat.com
> > [mailto:ataraid-list-bounces at redhat.com] On Behalf Of Heinz
> Mauelshagen
> > Sent: Friday, April 29, 2011 3:58 AM
> > To: ataraid-list at redhat.com
> > Subject: Re: experimenting with dmraid - disk status
> > 
> > On Thu, 2011-04-28 at 09:30 -0400, Sandra Escandor wrote:
> > > Hello,
> > > 
> > >  
> > > 
> > > I was doing a bit of experimenting with dmraid. What I have done is
> to
> > > create a raid0+1 array, and then physically pull one of the disks
> out.
> > > I then use the command "dmraid -n" to look at the metadata on the
> > > member disks. I notice that the member disk listed by the output
> that
> > > has the specific serial number of the disk that I pulled, whose
> status
> > > I expect to be different from the other disks listed, still has the
> > > same status as the other still physically plugged in. (i.e
> > > disk[0].status: 0x53a is shown for all of the disks, even the one
> that
> > > I pulled out). Is this normal?
> > 
> > Yes, unless it's isw format, where a plugin exists to update the
> > metadata.
> > 
> > Heinz
> > 
> > > 
> > >  
> > > 
> > > The following is the output of "dmraid -V":
> > > 
> > > dmraid version: 1.0.0.rc16 (2009.09.16) shared
> > > 
> > > dmraid library version:  1.0.0.rc16 (2009.09.16) 
> > > 
> > > device-mapper version: 4.13.0
> > > 
> > >  
> > > 
> > > Thanks for clarifying,
> > > 
> > > Sandra 
> > > 
> > > 
> > > _______________________________________________
> > > Ataraid-list mailing list
> > > Ataraid-list at redhat.com
> > > https://www.redhat.com/mailman/listinfo/ataraid-list
> > 
> > 
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> 
> 
> 
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