[dm-devel] Multipath issues with kernel device errors
Jeffry Bilder
jbilder at g2switchworks.com
Tue Aug 28 20:59:40 UTC 2007
[user at server01 ~]$ rpm -qa |grep multi
device-mapper-multipath-0.4.5-16.1.RHEL4
I am using Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
Thanks,
JB
-----Original Message-----
From: dm-devel-bounces at redhat.com [mailto:dm-devel-bounces at redhat.com]
On Behalf Of Chandra Seetharaman
Sent: Tuesday, August 28, 2007 3:42 PM
To: device-mapper development
Subject: Re: [dm-devel] Multipath issues with kernel device errors
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 at 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 at 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 at redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel
--
----------------------------------------------------------------------
Chandra Seetharaman | Be careful what you choose....
- sekharan at us.ibm.com | .......you may get it.
----------------------------------------------------------------------
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