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[Bug 824790] [NEW] IBM DS3400 Will Not Bring Up Second Path

To: ubuntu-storage-dev@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <824790@xxxxxxxxxxxxxxxxxx>
Date: Fri, 12 Aug 2011 19:49:22 -0000
Reply-to: Bug 824790 <824790@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Peter Petrakis (peter-petrakis) has assigned this bug to you for multipath-tools in Ubuntu:

System configuration is an IBM HS21 blade connected to an IBM DS3400 SAN.
The system is running Ubuntu 10.10 with multipath-tools version: 0.4.8-14ubuntu4.10.10.2
The Ubuntu OS is installed on an internal disk and not the SAN.

multipathd> show paths 
hcil dev dev_t pri dm_st chk_st next_check 
0:0:0:0 sda 8:0 0 [undef][ghost] [orphan] 
1:0:0:0 sdb 8:16 3 [undef][ready] [orphan] 
2:1:1:0 sdc 8:32 1 [undef][ready] [orphan] 

It appears everything is working but multipathd cant define the maps, a
multipath -v 6 shows

"360080e50001b5f4c00003d284e37e864: domap (0) failure for create/reload
map"

That is the uuid of the path associated with /sda and /sdb but it cant
seem to create it.

libdevmapper: ioctl/libdm-iface.c(1740): dm reload 360080e50001b5f4c00003d284e37e864 OF [16384] 
libdevmapper: ioctl/libdm-iface.c(1757): device-mapper: reload ioctl failed: Invalid argument 
libdevmapper: ioctl/libdm-iface.c(1740): dm remove 360080e50001b5f4c00003d284e37e864 NF [16384] 
libdevmapper: libdm-common.c(799): 360080e50001b5f4c00003d284e37e864: Stacking NODE_DEL (replaces other stacked ops) 
libdevmapper: ioctl/libdm-iface.c(1740): dm info 360080e50001b5f4c00003d284e37e864 NF [16384] 
360080e50001b5f4c00003d284e37e864: domap (0) failure for create/reload map 
360080e50001b5f4c00003d284e37e864: remove multipath map 
sda: orphaned 
sdb: orphaned

The SAN is on devices sda and sdb.  The internal root disk is sdc.  The
device sda is reporting I/O errors in syslog because multipath cannot
bring up the path.

** Affects: multipath-tools (Ubuntu)
     Importance: Undecided
     Assignee: Ubuntu Storage Development Team (ubuntu-storage-dev)
         Status: New

-- 
 IBM DS3400 Will Not Bring Up Second Path
https://bugs.launchpad.net/bugs/824790
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