unable to remove a disabled dmp path without reboot on solaris 10

Question

here is my problem, i have a dmpnode, and one of the 2 WWN has been rearranged from the array side. so it generated the some disabled paths.&nbsp;
my problem is how to remove these disabled paths without disrupting the current vxfs mounts.
at the moment, cfgadm sees these paths as failing even though format sees them as offline. luxadm -e offline $path didn't help.&nbsp;
&nbsp;

marianne · Answer

See if this TN helps:
http://www.symantec.com/docs/TECH76780

idawong · Answer

is this safe to do this when you have vxfs fs mounted? it looks very destructive.

idawong · Answer

i don't think this would work at all, first of all:
&nbsp;# devfsadm -Cv&nbsp;
this would failed. as i mentioned above, cfgadm shows the disk as failing (not unusable) because the disk's diskgroup is imported
&nbsp;

lex13 · Answer

The paths can be disabled using vxdmpadm disable path=&lt;pathname&gt;, the only caveat, is if the disk is in use, Veritas will not remove the last functioning path. The previous statement regarding device tree cleanup is correct, you will have to go in to the /dev/vx/dmp and /dev/vx/rdmp and cleanup the devices, rescan and check if the paths are removed. If you need to keep persistence on, use vxddladm set namingscheme=[osn| ebn] persistence=yes
[root@server102 rdmp]# vxddladm set namingscheme=ebn persistence=yes
	[root@server102 rdmp]# vxddladm get namingscheme
	NAMING_SCHEME&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PERSISTENCE&nbsp;&nbsp;&nbsp; LOWERCASE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; USE_AVID
	============================================================
	Enclosure Based&nbsp;&nbsp;&nbsp;&nbsp; Yes&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Yes&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Yes
	[root@server102 rdmp]# vxdisk list
	DEVICE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TYPE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DISK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GROUP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; STATUS
	disk_0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; auto:none&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online invalid
	ibm_shark0_0 auto:cdsdisk&nbsp;&nbsp;&nbsp; dev1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; lex&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_1 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_2 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_3 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_4 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_5 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_6 auto:cdsdisk&nbsp;&nbsp;&nbsp; dev3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; lex&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_7 auto:cdsdisk&nbsp;&nbsp;&nbsp; ibm_shark0_7&nbsp; vxfendg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_8 auto:cdsdisk&nbsp;&nbsp;&nbsp; ibm_shark0_8&nbsp; vxfendg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_9 auto:cdsdisk&nbsp;&nbsp;&nbsp; ibm_shark0_9&nbsp; vxfendg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	&nbsp;
[root@server102 dcli]# vxdisk rm ibm_shark0_5
	&nbsp;
[root@server102 dcli]# vxdisk list
	DEVICE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TYPE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DISK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GROUP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; STATUS
	disk_0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; auto:none&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online invalid
	ibm_shark0_0 auto:cdsdisk&nbsp;&nbsp;&nbsp; dev1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; lex&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_1 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_2 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_3 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_4 auto:cdsdisk&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online&nbsp;&nbsp;&nbsp;
ibm_shark0_6 auto:cdsdisk&nbsp;&nbsp;&nbsp; dev3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; lex&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_7 auto:cdsdisk&nbsp;&nbsp;&nbsp; ibm_shark0_7&nbsp; vxfendg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_8 auto:cdsdisk&nbsp;&nbsp;&nbsp; ibm_shark0_8&nbsp; vxfendg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	ibm_shark0_9 auto:cdsdisk&nbsp;&nbsp;&nbsp; ibm_shark0_9&nbsp; vxfendg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; online
	[root@server102 dcli]#
It is still there but removed until your next scan
[root@server102 /]# vxdmpadm getsubpaths
	NAME&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; STATE[A]&nbsp;&nbsp; PATH-TYPE[M] DMPNODENAME&nbsp; ENCLR-NAME&nbsp;&nbsp; CTLR&nbsp;&nbsp; ATTRS
	================================================================================
	c1t0d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; disk_0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; disk&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t2d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_0 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t3d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_1 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t4d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_2 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t5d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_3 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t6d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_4 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t7d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_5 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&nbsp; &lt;&lt;&lt;&lt;
	c2t8d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_6 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t9d0s2&nbsp;&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_7 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t10d0s2&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_8 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	c2t11d0s2&nbsp;&nbsp;&nbsp; ENABLED(A)&nbsp;&nbsp; -&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ibm_shark0_9 ibm_shark0&nbsp;&nbsp; c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -
	[root@server102 /]#
======================
For EMC devices use powermt check, remove, dev=disk_name
For&nbsp;Oracle/Solaris -
# luxadm remove_device -F /dev/rdsk/ctd
#&nbsp;vxdiskadm, option 3
# cfgadm -f -o unusable_FCP_dev -c unconfigure c3::50060e8004274d30
# luxadm -e offline /dev/dsk/c3t50060E8004274D30d3s2
(i.e. "luxadm -e offline &lt;device path for LUN in 'failing' state from cfgadm&gt;)
Then re-run the previous cfgadm command (cfgadm -al -o show_FCP_dev) to check that the LUN state has changed from "failing" to "unusable".
References
luxadm - http://xteams.oit.ncsu.edu/iso/lun_removal
Oracle luxadm - http://docs.oracle.com/cd/E23824_01/html/821-1462/luxadm-1m.html
Oracle hotplug devices - http://docs.oracle.com/cd/E19683-01/816-5074-10/hotplug.html

When you are using the dmp paths, you need to remove the disk from both drectories dsk and rdmp. Once it is removed from DMP control then remove from the operating system device control.
I was not sure what your statement, "the 2 WWN has been rearranged from the array side",&nbsp;meant, so I added FC-AL, Fibre and hotplug.
	&nbsp;

idawong · Answer

Hi lex13,
if the disk is imported, luxadm -e offline $path would not work as long as the disk is online even though the path is DISABLED. it is not just luxadm, linux has the same issue.&nbsp;
As i mentioned before, there are other valid ENABLED paths, why would veritas hold on to the disabled paths? This means it requires down time to resolve any disabled paths.
I have no trouble removing DISABLED paths if the disk is not imported
&nbsp;

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unable to remove a disabled dmp path without reboot on solaris 10

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