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Re: [dm-devel] Problem with Multipath (devices not ready)



Title: Assinatura
Hi again,


    I've tried all your suggestions but i'm still having exactly the same problems.
    I'm starting to think that my driver isn't good enough to handle one QLA2340 and 4 paths to the LUN.
    I've tried: update OS, update drivers, update multipath, re-configurate multipath...
    What do you think I should try now ?



Best regards,

--

 

João Daniel




Apoio Informático

Sistema de Informação do Instituto Politécnico de Setúbal

Instituto Politécnico de Setúbal
Esc. Sup. de Tec. de Setúbal


Campus do IPS, Estefanilha
2910-761 Setúbal



tel:  


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Bernd Zeimetz wrote:
Hi,

  
           default_getuid_callout    "/sbin/scsi_id -g -u -s /block/%
n"

   

      
remove too : the CX need a special flag passed to scsi_id if I
remember ...
 

    
this was mentioned in a thread about the EMC CX a few weeks ago. But I
think there's also a working default setting for this in multipath (at
least it works very well with the default settings here). Also check
http://christophe.varoqui.free.fr/wiki/wakka.php?wiki=TestedEnvironments
- I've mentioned the neccessary settings on the CX there.


Bernd

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> 
> defaults {
> 
>             multipath_tool   "/sbin/multipath -v 0 -S"
> 
>             udev_dir            /dev
> 
>             polling_interval 10
> 
>             default_selector "round-robin 0"
> 
>     #default_path_grouping_policy           failover
> 
>             default_path_grouping_policy     multibus
> 

CX300 is not a multibus-capable hardware.
You should remove this directive and let the in-core defaults apply.

>             default_getuid_callout    "/sbin/scsi_id -g -u -s /block/%
> n"
> 
  
remove too : the CX need a special flag passed to scsi_id if I
remember ...


>             #default_prio_callout      "/bin/false"
> 
>     failback        immediate
> 
> }
> 
  
Regards,
cvaroqui
> 
  

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Hi,

 

 

 

I have upgraded from SLES9-SP2 to SLES9-SP3.

The purpose was to fix some problems related to OCFS2.

 

I have many warnings (as you can see below) in my /var/log/messages related to multipath (i think), indicating that the devices aren't ready.

Maybe the multipath.conf needs some extra configuration (please see my multipath.conf).

The sdc and sdd devices are disks out on the EMC.

 

 

Can anyone help me with this problem ?

 

 

 

 

 

 

ERROR MESSAGES:

 

(...)

Jan 27 16:16:18 siipstestes kernel: Device sdc not ready.

Jan 27 16:16:18 siipstestes kernel: Device sdd not ready.

Jan 27 16:16:29 siipstestes kernel: Device sdc not ready.

Jan 27 16:16:29 siipstestes kernel: Device sdd not ready.

Jan 27 16:16:40 siipstestes kernel: Device sdc not ready.

Jan 27 16:16:40 siipstestes kernel: Device sdd not ready.

Jan 27 16:16:51 siipstestes kernel: Device sdc not ready.

Jan 27 16:16:51 siipstestes kernel: Device sdd not ready.

Jan 27 16:17:02 siipstestes kernel: Device sdc not ready.

Jan 27 16:17:02 siipstestes kernel: Device sdd not ready.

Jan 27 16:17:13 siipstestes kernel: Device sdc not ready.

Jan 27 16:17:13 siipstestes kernel: Device sdd not ready.

Jan 27 16:17:24 siipstestes kernel: Device sdc not ready.

Jan 27 16:17:24 siipstestes kernel: Device sdd not ready.

Jan 27 16:17:35 siipstestes kernel: Device sdc not ready.

Jan 27 16:17:35 siipstestes kernel: Device sdd not ready.

Jan 27 16:17:46 siipstestes kernel: Device sdc not ready.

Jan 27 16:17:46 siipstestes kernel: Device sdd not ready.

(...)

 

 

 

 

 

server:~ # multipath -v2 -l

dm names   N 

dm table LUN_TESTES  N 

dm table LUN_TESTES  N 

dm status LUN_TESTES  N 

dm info LUN_TESTES  O 

LUN_TESTES (360060160256014006adcbf64a644da11)

[size=458 GB][features="0"][hwhandler="0"]

\_ round-robin 0 [active]

 \_ 3:0:0:0 sdc 8:32 [failed][faulty]

 \_ 3:0:1:0 sdd 8:48 [failed][faulty]

 \_ 3:0:2:0 sde 8:64 [active][ready]

 \_ 3:0:3:0 sdf 8:80 [active][ready]

 

 

 

 

 

 

 

 

 

Here is my MULTIPATH.CONF file:

 

 

defaults {

            multipath_tool   "/sbin/multipath -v 0 -S"

            udev_dir            /dev

            polling_interval 10

            default_selector "round-robin 0"

    #default_path_grouping_policy           failover

            #default_path_grouping_policy     multibus

            #default_getuid_callout    "/sbin/scsi_id -g -u -s /block/%n"

            #default_prio_callout      "/bin/false"

    failback        immediate

}

 

#

# name    : devnode_blacklist

# scope   : multipath & multipathd

# desc    : list of device names to discard as not multipath candidates

# default : cciss, fd, hd, md, dm, sr, scd, st, ram, raw, loop

#

devnode_blacklist {

            devnode cciss

            devnode fd

            devnode hd

            devnode md

            devnode dm-

            devnode sr

            devnode scd

            devnode st

            devnode ram

            devnode raw

            devnode loop

            devnode sda

            devnode sdb

}

 

#

# name    : multipaths

# scope   : multipath & multipathd

# desc    : list of multipaths finest-grained settings

#

multipaths {

            #

            # name  : multipath

            # scope : multipath & multipathd

            # desc  : container for settings that apply to one specific multipath

            #

            multipath {

                        wwid                            360060160256014006adcbf64a644da11

                        alias                             LUN_TESTES

            }

}

 


 

 

 

 

 

 

 

 

 

 

 

HARDWARE:

 

- DELL 2850

- 1x QLogic 2340 (BIOS 1.47) to acess my Storage (EMC Clariion CX300)

 

 

 

 

SOFTWARE:

 

- SLES9 (32 bit) + SP3 (with Multipath and OCFS2 configured)

- Oracle Clusterware Release 2 (10.2.0.1.0)

- Oracle Database 10g Release 2 (10.2.0.1.0)

- Qlogic driver: qlafc-linux-8.01.00-4-install.tgz.gz

- Naviagent CLI: naviagentcli-6.16.0.4.63-1.i386.rpm

- SANsurfer: emc_sansurfer2.0.30b52_linux_install.bin

 

- Multipath 0.4.5-0.11

 

 

 

 

 

 


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