[dm-devel] Re: configure MD3000
Thomas Witzel
witzel.thomas at gmail.com
Thu Mar 12 19:25:54 UTC 2009
My /sys/block looks like this:
ls /sys/block/
dm-0 dm-3 dm-6 loop2 loop5 ram0 ram11 ram14 ram3 ram6 ram9
sdc sdf sdi sdl
dm-1 dm-4 loop0 loop3 loop6 ram1 ram12 ram15 ram4 ram7 sda
sdd sdg sdj sdm
dm-2 dm-5 loop1 loop4 loop7 ram10 ram13 ram2 ram5 ram8 sdb
sde sdh sdk sr0
My /proc/partitions looks like this:
major minor #blocks name
8 0 71041024 sda
8 1 68099503 sda1
8 2 1 sda2
8 5 2939863 sda5
8 16 2134896640 sdb
8 17 2134893883 sdb1
8 32 2134896640 sdc
8 48 2134896640 sdd
8 49 2134893883 sdd1
8 64 2134896640 sde
8 80 1222794240 sdf
8 96 20480 sdg
8 112 2134896640 sdh
8 128 2134896640 sdi
8 129 2134893883 sdi1
8 144 2134896640 sdj
8 160 2134896640 sdk
8 161 2134893883 sdk1
8 176 1222794240 sdl
8 192 20480 sdm
254 0 2134896640 dm-0
254 1 2134896640 dm-1
254 2 2134896640 dm-2
254 3 2134896640 dm-3
254 4 1222794240 dm-4
254 5 20480 dm-5
254 6 20480 dm-6
All the sd's with a partition are working fine, I even created a test
file system at some point. I did load scsi_dh_rdac for testing at some
point, and that put the following into the syslog:
[10170.087743] sd 1:0:0:0: rdac: LUN 0 (owned)
[10170.089151] sd 1:0:0:1: rdac: LUN 1 (unowned)
[10170.089941] sd 1:0:0:2: rdac: LUN 2 (owned)
[10170.090719] sd 1:0:0:3: rdac: LUN 3 (unowned)
[10170.092112] sd 1:0:0:4: rdac: LUN 4 (owned)
[10170.092964] sd 1:0:1:0: rdac: LUN 0 (unowned)
[10170.093733] sd 1:0:1:1: rdac: LUN 1 (owned)
[10170.094507] sd 1:0:1:2: rdac: LUN 2 (unowned)
[10170.095261] sd 1:0:1:3: rdac: LUN 3 (owned)
[10170.096081] sd 1:0:1:4: rdac: LUN 4 (unowned)
[10170.096088] rdac: device handler registered
Also loading the scsi_dh_rdac module seems to stop the [ 8996.087508]
Buffer I/O error on device dm-5, logical block 5
[ 8996.087539] Buffer I/O error on device dm-5, logical block 6
[ 8996.087548] Buffer I/O error on device dm-5, logical block 5112
[ 8996.087553] Buffer I/O error on device dm-5, logical block 5112
[ 8996.087601] Buffer I/O error on device dm-5, logical block 12
[ 8996.087606] Buffer I/O error on device dm-5, logical block 13
[ 8996.087609] Buffer I/O error on device dm-5, logical block 14
[ 8996.087612] Buffer I/O error on device dm-5, logical block 15
[ 8996.087615] Buffer I/O error on device dm-5, logical block 16
[ 8996.087618] Buffer I/O error on device dm-5, logical block 17
type messages.
On Thu, Mar 12, 2009 at 3:18 PM, Chandra Seetharaman
<sekharan at us.ibm.com> wrote:
> No, you don't have to change the distro.
>
> Do you see the disks ? (the #:#:#:# makes me think that the underlying
> block devices are not configured properly). IOW, do you the sd devices
> under /sys/block ? Are you able to read/write from/to the devices ?
>
> chandra
>
> On Thu, 2009-03-12 at 15:07 -0400, Thomas Witzel wrote:
>> Thanks Chandra,
>>
>> sorry for the out of order reply, still had the digest mode on. I
>> setup the config similar to what you said
>>
>> devices {
>> device {
>> vendor "DELL"
>> product "MD3000"
>> hardware_handler "1 rdac"
>> path_checker rdac
>> path_grouping_policy group_by_prio
>> prio_callout "/sbin/mpath_prio_rdac /dev/%n"
>> failback immediate
>> getuid_callout "/sbin/scsi_id -g -u /block/%n"
>> }
>> }
>>
>>
>> and I'm still getting:
>> sdh: checker msg is "directio checker reports path is down"
>> create: 360022190009773680000214749504780 ,
>> [size=2.0T][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdb 8:16 [undef][ready]
>> \_ round-robin 0 [prio=0][undef]
>> \_ #:#:#:# sdh 8:112 [undef][faulty]
>> sdc: checker msg is "directio checker reports path is down"
>> create: 3600221900096f27d00000ab3495047fd ,
>> [size=2.0T][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=0][undef]
>> \_ #:#:#:# sdc 8:32 [undef][faulty]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdi 8:128 [undef][ready]
>> sdj: checker msg is "directio checker reports path is down"
>> create: 360022190009773680000214a495047ce ,
>> [size=2.0T][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdd 8:48 [undef][ready]
>> \_ round-robin 0 [prio=0][undef]
>> \_ #:#:#:# sdj 8:144 [undef][faulty]
>> sde: checker msg is "directio checker reports path is down"
>> create: 3600221900096f27d00000ab449504839 ,
>> [size=2.0T][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=0][undef]
>> \_ #:#:#:# sde 8:64 [undef][faulty]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdk 8:160 [undef][ready]
>> sdl: checker msg is "directio checker reports path is down"
>> create: 360022190009773680000214c49504806 ,
>> [size=1.1T][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdf 8:80 [undef][ready]
>> \_ round-robin 0 [prio=0][undef]
>> \_ #:#:#:# sdl 8:176 [undef][faulty]
>> create: 360022190009773680000000000000000 ,
>> [size=20M][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdg 8:96 [undef][ready]
>> create: 3600221900096f27d0000000000000000 ,
>> [size=20M][features=0][hwhandler=0]
>> \_ round-robin 0 [prio=1][undef]
>> \_ #:#:#:# sdm 8:192 [undef][ready]
>> libdevmapper: libdm-common.c(312): Created
>> /dev/mapper/360022190009773680000000000000000
>> libdevmapper: libdm-common.c(312): Created
>> /dev/mapper/3600221900096f27d0000000000000000
>>
>> Now this is not on RH or SLES, its an ubuntu 8.4 system. If absolutely
>> necessary I would consider switching the distribution, but right now
>> I'd prefer to stick with what all the other machines have.
>>
>> Thanks, Thomas
>>
>> --
>> dm-devel mailing list
>> dm-devel at redhat.com
>> https://www.redhat.com/mailman/listinfo/dm-devel
>
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