PowerHA holds my disks

I did some testing and needed to document command syntaxen, even though I was not successful.
node01 / node02 – cannot remove EMC disks
aps are stopped

The fuser command will not detect processes that have mmap regions where that associated file descriptor has since been closed.

lsof | grep hdisk   ### nothing
fuser -fx /dev/hdisk2 ### nothing
fuser -d /dev/hdisk2 ### nothing
sudo filemon -O all -o 2.trc ; sleep 10 ; sudo trcstop   ### only shows hottest 2 dsks

### Cannot remove disks after removign from HA, is related to this defect.
http://www-01.ibm.com/support/docview.wss?uid=isg1IV65140
/usr/es/sbin/cluster/events/utils/cl_vg_fence_term -c vgname

In PowerHA 7.1.3, with the shared VG varied off, and the
disk in closed state, rmdev may fail and return a
busy error, eg:

# rmdev -dl hdisk2
Method error (/usr/lib/methods/ucfgdevice):
0514-062 Cannot perform the requested function because
         the specified device is busy.
.

# cl_set_vg_fence_height
Usage: cl_set_vg_fence_height [-c]  [rw|ro|na|ff]

JDSD NOTE: The levels are:
* rw = readwrite
* ro = read only
* na = no access
* ff = fail access

jdsd@node01  /home/jdsd
$ sudo ls -laF /usr/es/sbin/cluster/events/utils/cl*fence*
-rwxr--r--    1 root     system        12832 Nov  7 2013  /usr/es/sbin/cluster/events/utils/cl_fence_vg*
-rwxr--r--    1 root     system        15624 Nov  7 2013  /usr/es/sbin/cluster/events/utils/cl_set_vg_fence_height*
-r-x------    1 root     system         5739 Nov  7 2013  /usr/es/sbin/cluster/events/utils/cl_ssa_fence*
-rwxr--r--    1 root     system        22508 Nov  7 2013  /usr/es/sbin/cluster/events/utils/cl_vg_fence_init*
-rwxr--r--    1 root     system         4035 Feb 26 2015  /usr/es/sbin/cluster/events/utils/cl_vg_fence_redo*
-rwxr--r--    1 root     system        15179 Oct 21 2014  /usr/es/sbin/cluster/events/utils/cl_vg_fence_term*


jdsd@node01  /home/jdsd
$ sudo ls -laF /usr/es/sbin/cluster/events/cspoc/cl*disk*
-r-x------    1 root     system       109726 Feb 26 2015  /usr/es/sbin/cluster/cspoc/cl_diskreplace*
-rwxr-xr-x    1 root     system        20669 Nov  7 2013  /usr/es/sbin/cluster/cspoc/cl_getdisk*
-r-x------    1 root     system       105962 Feb 26 2015  /usr/es/sbin/cluster/cspoc/cl_lsreplacementdisks*
-r-x------    1 root     system       103433 Feb 26 2015  /usr/es/sbin/cluster/cspoc/cl_lsrgvgdisks*
-rwxr-xr-x    1 root     system        12259 Feb 26 2015  /usr/es/sbin/cluster/cspoc/cl_pviddisklist*
-rwxr-xr-x    1 root     system         4929 Nov  7 2013  /usr/es/sbin/cluster/cspoc/cl_vg_non_dhb_disks*


jdsd@node01  /home/jdsd
$ sudo /usr/es/sbin/cluster/cspoc/cl_lsrgvgdisks
#Volume Group   hdisk    PVID             Cluster Node
#---------------------------------------------------------------------
caavg_private   hdisk38  00deadbeefcaff53 node01                        node01,node02 
datavg          hdisk22  00deadbeefca8643 node02                        node01,node02 demo_rg
datavg          hdisk23  00deadbeefca86f9 node02                        node01,node02 demo_rg
datavg          hdisk24  00deadbeefca8752 node02                        node01,node02 demo_rg
datavg          hdisk25  00deadbeefca87ac node02                        node01,node02 demo_rg
datavg          hdisk26  00deadbeefca880e node02                        node01,node02 demo_rg
datavg          hdisk27  00deadbeefca886c node02                        node01,node02 demo_rg
datavg          hdisk28  00deadbeefca88d7 node02                        node01,node02 demo_rg
datavg          hdisk29  00deadbeefca8965 node02                        node01,node02 demo_rg
datavg          hdisk30  00deadbeefca89c5 node02                        node01,node02 demo_rg
datavg          hdisk31  00deadbeefca8a52 node02                        node01,node02 demo_rg
datavg          hdisk32  00deadbeefca8ad2 node02                        node01,node02 demo_rg
datavg          hdisk33  00deadbeefca8b50 node02                        node01,node02 demo_rg
datavg          hdisk34  00deadbeefca8c26 node02                        node01,node02 demo_rg
datavg          hdisk35  00deadbeefca8c9a node02                        node01,node02 demo_rg
datavg          hdisk36  00deadbeefca8cf7 node02                        node01,node02 demo_rg
journalvg       hdisk37  00deadbeefca8d53 node02                        node01,node02 demo_rg


jdsd@node01  /home/jdsd
$ sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
Disk name:                      hdisk2
Disk UUID:                      1edeadbeefcafe04 b512d9e3b580fb13
Fence Group UUID:               0000000000000000 0000000000000000 - Not in a Fence Group
Disk device major/minor number: 18, 2
Fence height:                   2 (Read/Only)
Reserve mode:                   0 (No Reserve)
Disk Type:                      0x01 (Local access only)
Disk State:                     32785

Concurrent vg, so updating on node2 shows up on node1.

From node 2

sudo extendvg journalvg hdisk2 hdisk3 hdisk4 hdisk5 hdisk6 hdisk7 hdisk8 hdisk9 hdisk10 hdisk11 hdisk12
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk37
# Shows RW

From node 1

sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk37
# Shows RW

From node1

sudo /usr/es/sbin/cluster/events/utils/cl_set_vg_fence_height -c journalvg rw
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
# Shows RW

From node2

sudo reducevg journalvg hdisk2 hdisk3 hdisk4 hdisk5 hdisk6 hdisk7 hdisk8 hdisk9 hdisk10 hdisk11 hdisk12
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
# Shows RO

### OK, try again
From node 1

sudo mkvg -y dummyvg hdisk2 hdisk3 hdisk4 hdisk5 hdisk6 hdisk7 hdisk8 hdisk9 hdisk10 hdisk11 hdisk12
sudo varyoffvg dummyvg

From node 2

sudo importvg  -y dummyvg hdisk2
sudo /usr/es/sbin/cluster/events/utils/cl_set_vg_fence_height -c dummyvg rw
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
### Still RO

sudo /usr/es/sbin/cluster/events/utils/cl_vg_fence_term -c dummyvg
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
### Still RO

sudo varyoffvg dummyvg
sudo rmdev -Rl hdisk2

Both nodes

sudo exportvg dummyvg
sudo importvg -c -y dummyvg hdisk2
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
### Still RO

sudo /usr/es/sbin/cluster/events/utils/cl_set_vg_fence_height -c dummyvg rw
sudo /usr/es/sbin/cluster/events/utils/cl_vg_fence_init -c dummyvg rw hdisk2
cl_vg_fence_init[279]: sfwAddFenceGroup(dummyvg, 1, hdisk2): No such device
sudo chvg -c dummyvg
sudo varyonvg -n -c -A -O dummyvg
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk2
sudo /usr/es/sbin/cluster/cspoc/cl_getdisk hdisk3
### Still RO

sudo varyoffvg dummyvg

From Node 2

sudo rmdev -Rl hdisk2
Method error (/etc/methods/ucfgdevice):
        0514-062 Cannot perform the requested function because the
                 specified device is busy.

sudo /usr/es/sbin/cluster/events/utils/cl_vg_fence_redo -c dummyvg rw hdisk2
 /usr/es/sbin/cluster/events/utils/cl_vg_fence_redo: line 109: cl_vg_fence_init: not found
 cl_vg_fence_redo: Volume group dummyvg fence height could not be set to read/write

This is related to this defect, but later version:
http://www-01.ibm.com/support/docview.wss?uid=isg1IV52444

sudo su -
export PATH=$PATH:/usr/es/sbin/cluster/utilities:/usr/es/sbin/cluster/events/utils/:/usr/es/sbin/cluster/cspoc/:/usr/es/sbin/cluster/sbin:/usr/es/sbin/cluster
/usr/es/sbin/cluster/events/utils/cl_vg_fence_redo -c dummyvg rw hdisk2
 cl_vg_fence_init[279]: sfwAddFenceGroup(dummyvg, 11, hdisk2, hdisk3, hdisk4, hdisk5, hdisk6, hdisk7, hdisk8, hdisk9, hdisk10, hdisk11, hdisk12): No such device
 cl_vg_fence_redo: Volume group dummyvg fence height could not be set to read/write#
cd /dev
/usr/es/sbin/cluster/events/utils/cl_vg_fence_redo -c dummyvg rw hdisk2
 cl_vg_fence_init[279]: sfwAddFenceGroup(dummyvg, 11, hdisk2, hdisk3, hdisk4, hdisk5, hdisk6, hdisk7, hdisk8, hdisk9, hdisk10, hdisk11, hdisk12): No such device
 cl_vg_fence_redo: Volume group dummyvg fence height could not be set to read/write#

SIGH!

I give up. We will probably have to reboot.

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