Re: Multipath issues with kernel device errors

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On Tue, 2007-08-28 at 15:25 -0500, Jeffry Bilder wrote:

Which version of multipath tools are you using ?

A quick look at 0.4.8 version shows that the configuration information
for MSA1000 is built-in in 0.4.8. But it has the vendor as HP not
COMPAQ.

You can using the configuration info from that file (by putting it in
your multipath.conf).

hope that helps,

chandra
> All,
> 
>  
> 
> I have multipath configured with an HP MSA 1000 with 2 servers
> connected and am able to get a list of drives:
> 
>  
> 
> u01 (3600805f3000e80908183e8993f630007)
> 
> [size=24 GB][features="0"][hwhandler="0"]
> 
> \_ round-robin 0 [active]
> 
>  \_ 0:0:1:2 sda 8:0  [active][ready]
> 
> \_ round-robin 0 [enabled]
> 
>  \_ 1:0:1:2 sdd 8:48 [failed][faulty]
> 
>  
> 
> vote (3600805f3000e809048e185c3b427000a)
> 
> [size=251 MB][features="0"][hwhandler="0"]
> 
> \_ round-robin 0 [active]
> 
>  \_ 0:0:1:4 sdc 8:32 [active][ready]
> 
> \_ round-robin 0 [enabled]
> 
>  \_ 1:0:1:4 sdf 8:80 [failed][faulty]
> 
>  
> 
> ocr (3600805f3000e8090d57e99af0d1f0008)
> 
> [size=251 MB][features="0"][hwhandler="0"]
> 
> \_ round-robin 0 [active]
> 
>  \_ 0:0:1:3 sdb 8:16 [active][ready]
> 
> \_ round-robin 0 [enabled]
> 
>  \_ 1:0:1:3 sde 8:64 [failed][faulty]
> 
>  
> 
> My /var/log/messages is throwing these errors:
> 
>  
> 
> Aug 28 15:10:21 server01 kernel: Device sdf not ready.
> 
> Aug 28 15:10:22 server 01 kernel: Device sdd not ready.
> 
> Aug 28 15:10:22 server 01 kernel: Device sde not ready.
> 
> Aug 28 15:10:22 server 01 kernel: Device sdf not ready.
> 
> Aug 28 15:10:32 server 01 kernel: Device sdd not ready.
> 
> Aug 28 15:10:32 server 01 kernel: Device sde not ready.
> 
> Aug 28 15:10:32 server 01 kernel: Device sdf not ready.
> 
> Aug 28 15:10:42 server 01 kernel: Device sdd not ready.
> 
> Aug 28 15:10:42 server 01 kernel: Device sde not ready.
> 
> Aug 28 15:10:43 server 01 kernel: Device sdf not ready.
> 
>  
> 
> [user@server01 ~]$ sudo /sbin/multipath -v3 -l
> 
> load path identifiers cache
> 
> #
> 
> # all paths in cache :
> 
> #
> 
> 3600805f3000e80908183e8993f630007  0:0:1:2 sda 8:0  [active][ready]
> COMPAQ  /M
> 
> 3600805f3000e8090d57e99af0d1f0008  0:0:1:3 sdb 8:16  [active][ready]
> COMPAQ  /
> 
> 3600805f3000e809048e185c3b427000a  0:0:1:4 sdc 8:32  [active][ready]
> COMPAQ  /
> 
> 3600805f3000e80908183e8993f630007  1:0:1:2 sdd 8:48  [failed][faulty]
> COMPAQ
> 
> 3600805f3000e8090d57e99af0d1f0008  1:0:1:3 sde 8:64  [failed][faulty]
> COMPAQ
> 
> 3600805f3000e809048e185c3b427000a  1:0:1:4 sdf 8:80  [failed][faulty]
> COMPAQ
> 
> cciss!c0d0 blacklisted
> 
> dm-0 blacklisted
> 
> dm-1 blacklisted
> 
> dm-2 blacklisted
> 
> dm-3 blacklisted
> 
> dm-4 blacklisted
> 
> dm-5 blacklisted
> 
> dm-6 blacklisted
> 
> dm-7 blacklisted
> 
> hda blacklisted
> 
> md0 blacklisted
> 
> ram0 blacklisted
> 
> ram10 blacklisted
> 
> ram11 blacklisted
> 
> ram12 blacklisted
> 
> ram13 blacklisted
> 
> ram14 blacklisted
> 
> ram15 blacklisted
> 
> ram1 blacklisted
> 
> ram2 blacklisted
> 
> ram3 blacklisted
> 
> ram4 blacklisted
> 
> ram5 blacklisted
> 
> ram6 blacklisted
> 
> ram7 blacklisted
> 
> ram8 blacklisted
> 
> ram9 blacklisted
> 
> ===== path info sda (mask 0x1) =====
> 
> bus = 1
> 
> dev_t = 8:0
> 
> size = 52420095
> 
> vendor = COMPAQ
> 
> product = MSA1000 VOLUME
> 
> rev = 4.48
> 
> h:b:t:l = 0:0:1:2
> 
> tgt_node_name = 0x500805f3000e8090
> 
> uid = 3600805f3000e80908183e8993f630007 (cache)
> 
> ===== path info sdb (mask 0x1) =====
> 
> bus = 1
> 
> dev_t = 8:16
> 
> size = 514080
> 
> vendor = COMPAQ
> 
> product = MSA1000 VOLUME
> 
> rev = 4.48
> 
> h:b:t:l = 0:0:1:3
> 
> tgt_node_name = 0x500805f3000e8090
> 
> uid = 3600805f3000e8090d57e99af0d1f0008 (cache)
> 
> ===== path info sdc (mask 0x1) =====
> 
> bus = 1
> 
> dev_t = 8:32
> 
> size = 514080
> 
> vendor = COMPAQ
> 
> product = MSA1000 VOLUME
> 
> rev = 4.48
> 
> h:b:t:l = 0:0:1:4
> 
> tgt_node_name = 0x500805f3000e8090
> 
> uid = 3600805f3000e809048e185c3b427000a (cache)
> 
> ===== path info sdd (mask 0x1) =====
> 
> bus = 1
> 
> dev_t = 8:48
> 
> size = 52420095
> 
> vendor = COMPAQ
> 
> product = MSA1000 VOLUME
> 
> rev = 4.48
> 
> h:b:t:l = 1:0:1:2
> 
> tgt_node_name = 0x500805f3000e8090
> 
> uid = 3600805f3000e80908183e8993f630007 (cache)
> 
> ===== path info sde (mask 0x1) =====
> 
> bus = 1
> 
> dev_t = 8:64
> 
> size = 514080
> 
> vendor = COMPAQ
> 
> product = MSA1000 VOLUME
> 
> rev = 4.48
> 
> h:b:t:l = 1:0:1:3
> 
> tgt_node_name = 0x500805f3000e8090
> 
> uid = 3600805f3000e8090d57e99af0d1f0008 (cache)
> 
> ===== path info sdf (mask 0x1) =====
> 
> bus = 1
> 
> dev_t = 8:80
> 
> size = 514080
> 
> vendor = COMPAQ
> 
> product = MSA1000 VOLUME
> 
> rev = 4.48
> 
> h:b:t:l = 1:0:1:4
> 
> tgt_node_name = 0x500805f3000e8090
> 
> uid = 3600805f3000e809048e185c3b427000a (cache)
> 
> #
> 
> # all paths :
> 
> #
> 
> 3600805f3000e80908183e8993f630007  0:0:1:2 sda 8:0  [active][ready]
> COMPAQ  /M
> 
> 3600805f3000e8090d57e99af0d1f0008  0:0:1:3 sdb 8:16  [active][ready]
> COMPAQ  /
> 
> 3600805f3000e809048e185c3b427000a  0:0:1:4 sdc 8:32  [active][ready]
> COMPAQ  /
> 
> 3600805f3000e80908183e8993f630007  1:0:1:2 sdd 8:48  [failed][faulty]
> COMPAQ
> 
> 3600805f3000e8090d57e99af0d1f0008  1:0:1:3 sde 8:64  [failed][faulty]
> COMPAQ
> 
> 3600805f3000e809048e185c3b427000a  1:0:1:4 sdf 8:80  [failed][faulty]
> COMPAQ
> 
> params = 0 0 2 1 round-robin 0 1 1 8:0 100 round-robin 0 1 1 8:48 100
> 
> status = 1 0 0 2 1 A 0 1 0 8:0 A 0 E 0 1 0 8:48 F 2
> 
> u01 (3600805f3000e80908183e8993f630007)
> 
> [size=24 GB][features="0"][hwhandler="0"]
> 
> \_ round-robin 0 [active]
> 
>  \_ 0:0:1:2 sda 8:0  [active][ready]
> 
> \_ round-robin 0 [enabled]
> 
>  \_ 1:0:1:2 sdd 8:48 [failed][faulty]
> 
>  
> 
> params = 0 0 2 1 round-robin 0 1 1 8:32 100 round-robin 0 1 1 8:80 100
> 
> status = 1 0 0 2 1 A 0 1 0 8:32 A 0 E 0 1 0 8:80 F 2
> 
> vote (3600805f3000e809048e185c3b427000a)
> 
> [size=251 MB][features="0"][hwhandler="0"]
> 
> \_ round-robin 0 [active]
> 
>  \_ 0:0:1:4 sdc 8:32 [active][ready]
> 
> \_ round-robin 0 [enabled]
> 
>  \_ 1:0:1:4 sdf 8:80 [failed][faulty]
> 
>  
> 
> params = 0 0 2 1 round-robin 0 1 1 8:16 100 round-robin 0 1 1 8:64 100
> 
> status = 1 0 0 2 1 A 0 1 0 8:16 A 0 E 0 1 0 8:64 F 2
> 
> ocr (3600805f3000e8090d57e99af0d1f0008)
> 
> [size=251 MB][features="0"][hwhandler="0"]
> 
> \_ round-robin 0 [active]
> 
>  \_ 0:0:1:3 sdb 8:16 [active][ready]
> 
> \_ round-robin 0 [enabled]
> 
>  \_ 1:0:1:3 sde 8:64 [failed][faulty]
> 
>  
> 
> [user@server01 ~]$ ls -l /dev |grep sd
> 
> brw-rw----  1 root disk   8,   0 Aug 28 05:28 sda
> 
> brw-rw----  1 root disk   8,   1 Aug 28 05:28 sda1
> 
> brw-rw----  1 root disk   8,  16 Aug 28 05:28 sdb
> 
> brw-rw----  1 root disk   8,  17 Aug 28 05:28 sdb1
> 
> brw-rw----  1 root disk   8,  32 Aug 28 05:28 sdc
> 
> brw-rw----  1 root disk   8,  33 Aug 28 05:28 sdc1
> 
> brw-rw----  1 root disk   8,  48 Aug 28 05:28 sdd
> 
> brw-rw----  1 root disk   8,  64 Aug 28 05:28 sde
> 
> brw-rw----  1 root disk   8,  80 Aug 28 05:29 sdf
> 
>  
> 
>  
> 
>  
> 
> ##### multipath.conf ######
> 
>  
> 
> ## Use user friendly names, instead of using WWIDs as names.
> 
> defaults {
> 
>         user_friendly_names yes
> 
> }
> 
>  
> 
> defaults {
> 
>     multipath_tool          "/sbin/multipath -v0"
> 
>     udev_dir                /dev
> 
>     polling_interval        10
> 
>     selector                "round-robin 0"
> 
>     path_grouping_policy    failover
> 
>     getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
> 
>     prio_callout            "/bin/true"
> 
>     default_features        "0"
> 
>     rr_min_io               100
> 
>     failback                immediate
> 
>     user_friendly_name      yes
> 
> }
> 
>  
> 
> blacklist {
> 
>         wwid 26353900f02796769
> 
>        devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
> 
>        devnode "^hd[a-z][[0-9]*]"
> 
>        devnode "^sd[a-z][[0-9]*]"
> 
>        devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
> 
> }
> 
>  
> 
> multipaths {
> 
>         multipath {
> 
>                 wwid
> 3600805f3000e80908183e8993f630007
> 
>                 alias                   u01
> 
>         }
> 
>         multipath {
> 
>                 wwid
> 3600805f3000e8090d57e99af0d1f0008
> 
>                 alias                   ocr
> 
>         }
> 
>         multipath {
> 
>                 wwid
> 3600805f3000e809048e185c3b427000a
> 
>                 alias                   vote
> 
>         }
> 
> }
> 
>  
> 
> devices {
> 
>        device {
> 
>                vendor                  "COMPAQ"
> 
>                product                 "MSA1000"
> 
>                path_grouping_policy    group_by_serial
> 
>                getuid_callout          "/sbin/scsi_id -g -u -
> s /block/%n"
> 
>        }
> 
> }
> 
>  
> 
>  
> 
> Any help would be much appreciated.  I just need to keep the kernel
> from trying to access those SCSI devices that are there for failover.
> 
> 
> Thanks,
> 
>  
> 
> JB
> 
> 
> --
> dm-devel mailing list
> dm-devel@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/dm-devel
-- 

----------------------------------------------------------------------
    Chandra Seetharaman               | Be careful what you choose....
              - sekharan@xxxxxxxxxx   |      .......you may get it.
----------------------------------------------------------------------


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