Public bug reported:
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
Status: New
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https://bugs.launchpad.net/bugs/824790
Title:
IBM DS3400 Will Not Bring Up Second Path
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