Re: ERROR: asr: reading /dev/sdo[Input/output error]

[Heinz Mauelshagen <heinzm@redhat.com>]

On 12/07/2011 09:29 PM, Christian May wrote:
> Am 07.12.2011 17:20, schrieb Heinz Mauelshagen:
>> On 12/07/2011 04:21 PM, Christian May wrote:
>>> Hi,
>>>
>>> I've setup an IBM HS21 blade with RHEL6.1. The OS installed on a 
>>> DS5100 storage server (SAN boot).
>>> During booting I'm recognizing the following messages:
>>>
>>> Starting udev: OK
>>> Setting hostname elm8a203.beaverton.ibm.com:
>>> ERROR: asr: reading /dev/sdo[Input/output error]
>>> ERROR: ddf1: reading /dev/sdo[Input/output error]
>>> ERROR: ddf1: reading /dev/sdo[Input/output error]
>>> ERROR: hpt37x: reading /dev/sdo[Input/output error]
>>> ERROR: hpt45x: reading /dev/sdo[Input/output error]
>>> ERROR: isw: reading /dev/sdo[Input/output error]
>>> ERROR: jmicron: reading /dev/sdo[Input/output error]
>>> ERROR: lsi: reading /dev/sdo[Input/output error]
>>> ERROR: nvidia: reading /dev/sdo[Input/output error]
>>> ERROR: pdc: reading /dev/sdo[Input/output error]
>>> ...
>>>
>>> ERROR: sil: reading /dev/sdf[Input/output error]
>>> ERROR: via: reading /dev/sdf[Input/output error]
>>> ERROR: asr: reading /dev/sde[Input/output error]
>>> ERROR: ddf1: reading /dev/sde[Input/output error]
>>> ERROR: ddf1: reading /dev/sde[Input/output error]
>>> ERROR: hpt37x: reading /dev/sde[Input/output error]
>>> ERROR: hpt45x: reading /dev/sde[Input/output error]
>>> ERROR: isw: reading /dev/sde[Input/output error]
>>> ERROR: jmicron: reading /dev/sde[Input/output error]
>>> ERROR: lsi: reading /dev/sde[Input/output error]
>>> ERROR: nvidia: reading /dev/sde[Input/output error]
>>> ERROR: pdc: reading /dev/sde[Input/output error]
>>> ERROR: pdc: reading /dev/sde[Input/output error]
>>> ERROR: pdc: reading /dev/sde[Input/output error]
>>> ERROR: pdc: reading /dev/sde[Input/output error]
>>> ERROR: pdc: reading /dev/sde[Input/output error]
>>> ERROR: pdc: reading /dev/sde[Input/output error]
>>>
>>>
>>> etc.
>>>
>>> All those device /dev/sd...are part of a multipath devices, e.g.:
>>>
>>>
>>> mpathh (3600a0b800047e4e4000008b54ebc91c3) dm-6 IBM,1818      FAStT
>>> size=25G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw
>>> |-+- policy='round-robin 0' prio=6 status=active
>>> | `- 3:0:3:0 sdh 8:112 active ready running
>>> `-+- policy='round-robin 0' prio=1 status=enabled
>>>   `- 4:0:2:0 sdo 8:224 active ghost running
>>> mpathg (3600a0b800011573a00006da14a648a22) dm-0 IBM,1815      FAStT
>>> size=4.8G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw
>>> |-+- policy='round-robin 0' prio=6 status=active
>>> | `- 4:0:1:1 sdn 8:208 active ready running
>>> `-+- policy='round-robin 0' prio=1 status=enabled
>>>   `- 3:0:0:1 sdc 8:32  active ghost running
>>>
>>>
>>> OS is booting but how can I get rid of those messages? Is it 
>>> udev-rules related?
>>
>> You have to deactivate dmraid with the "nodmraid" kernel command line 
>> option in order to avoid its scanning leading to the above error 
>> messages.
>>
>> Regards,
>> Heinz
>>
>>>
>>> Regards,
>>>
>>> Christian May (IBM)
>>>
>>>
>>>
>>> -- 
>>> dm-devel mailing list
>>> dm-devel@redhat.com
>>> https://www.redhat.com/mailman/listinfo/dm-devel
>>
>
> This parameter is set already...it's not solving the problem:

Not seing it in your paste below...

>
> [root@elm8a203 ~]# cat /boot/grub/menu.lst
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this 
> file
> # NOTICE:  You do not have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /, eg.
> #          root (hd0,0)
> #          kernel /boot/vmlinuz-version ro root=/dev/mapper/mpathhp1
> #          initrd /boot/initrd-[generic-]version.img
> #boot=/dev/mpathh
> default=0
> timeout=15
> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
> #hiddenmenu
> title Red Hat Enterprise Linux Server (2.6.32-131.0.15.el6.i686)
>         root (hd0,0)
>         kernel /boot/vmlinuz-2.6.32-131.0.15.el6.i686 ro 
> root=UUID=ad6570c8-5e2d-41f9-a228-85f9d68f00ce rd_NO_LUKS rd_NO_LVM 
> rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 
> KEYBOARDTYPE=pc KEYTABLE=de crashkernel=auto 
> rdloaddriver=scsi_dh_alua,scsi_dh_rdac

Should read:

         kernel /boot/vmlinuz-2.6.32-131.0.15.el6.i686 ro 
root=UUID=ad6570c8-5e2d-41f9-a228-85f9d68f00ce rd_NO_LUKS rd_NO_LVM 
rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 
KEYBOARDTYPE=pc KEYTABLE=de crashkernel=auto 
rdloaddriver=scsi_dh_alua,scsi_dh_rdac  nodmraid


Heinz

>         initrd /boot/initramfs-2.6.32-131.0.15.el6.i686.img
> title Red Hat Enterprise Linux Server (2.6.32-131.17.1.el6.i686)
>         root (hd0,0)
>         kernel /boot/vmlinuz-2.6.32-131.17.1.el6.i686 ro 
> root=UUID=ad6570c8-5e2d-41f9-a228-85f9d68f00ce rd_NO_LUKS rd_NO_LVM 
> rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 
> KEYBOARDTYPE=pc KEYTABLE=de crashkernel=auto 
> rdloaddriver=scsi_dh_alua,scsi_dh_rdac
>         initrd /boot/initramfs-2.6.32-131.17.1.el6.i686.img
> title Red Hat Enterprise Linux (2.6.32-131.0.15.el6.i686)
>         root (hd0,0)
>         kernel /boot/vmlinuz-2.6.32-131.0.15.el6.i686 ro 
> root=UUID=ad6570c8-5e2d-41f9-a228-85f9d68f00ce rd_NO_LUKS rd_NO_LVM 
> rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 
> KEYBOARDTYPE=pc KEYTABLE=de crashkernel=auto
>         initrd /boot/initramfs-2.6.32-131.0.15.el6.i686.img
> [root@elm8a203 ~]#
>
>
> -- 
> dm-devel mailing list
> dm-devel@redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel

-- 
===============================================================
Heinz Mauelshagen                               +49 2626 141200
Consulting Development Engineer             FAX +49 2626 924446
Red Hat GmbH
Am Sonnenhang 11
56242 Marienrachdorf
Germany                                       heinzm@redhat.com
===============================================================