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Bug 2003068

Summary: [RFE] Provide add/remove syntax for command `pcs stonith update-scsi-devices` [rhel-8.6.0]
Product: Red Hat Enterprise Linux 8 Reporter: RHEL Program Management Team <pgm-rhel-tools>
Component: pcsAssignee: Miroslav Lisik <mlisik>
Status: CLOSED ERRATA QA Contact: cluster-qe <cluster-qe>
Severity: high Docs Contact:
Priority: high    
Version: 8.5CC: cluster-maint, idevat, kmalyjur, lmiksik, mlisik, mmazoure, mpospisi, nhostako, omular, sbradley, tojeline
Target Milestone: rcKeywords: FutureFeature, Triaged
Target Release: 8.6Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: pcs-0.10.11-1.el8 Doc Type: Enhancement
Doc Text:
Feature: Provide add/remove syntax for command `pcs stonith update-scsi-devices` Reason: The add/remove syntax of the command is more comfortable for a user because it does not need to specify currently configured devices. Result: Command `pcs stonith update-scsi-devices` now supports add/remove syntax for updating fence scsi devices.
 Story Points: ---
Clone Of: 1992668 Environment:
Last Closed: 2022-05-10 14:50:48 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1992668    
Bug Blocks:    
Attachments:
Description Flags
proposed fix + tests none

Comment 1 Miroslav Lisik 2021-09-24 14:16:47 UTC 
Created attachment 1825906 [details]
proposed fix + tests

Updated command:
* pcs stonith update-scsi-devices

Test:
* setup a cluster with a fence scsi stonith resource
* setup resources running on each node
* update fence scsi devices using command `pcs stonith update-scsi-devices add <device>... remove <device>...
* check that resources were not restarted after update of devices
Comment 4 Miroslav Lisik 2021-11-02 09:24:19 UTC 
DevTestResults:

[root@r8-node-01 ~]# rpm -q pcs
pcs-0.10.11-1.el8.x86_64

export disk1=/dev/disk/by-id/scsi-360014052bc36324cf7d4a709a959340b
export disk2=/dev/disk/by-id/scsi-3600140547721f8ee2774aa8bac6d8ebe

[root@r8-node-01 ~]# pcs stonith
  * fence-scsi  (stonith:fence_scsi):    Started r8-node-01
[root@r8-node-01 ~]# pcs stonith config
 Resource: fence-scsi (class=stonith type=fence_scsi)
  Attributes: devices=/dev/disk/by-id/scsi-360014052bc36324cf7d4a709a959340b pcmk_host_check=static-list pcmk_host_list="r8-node-01 r8-node-02 r8-node-03" pcmk_reboot_action=off
  Meta Attrs: provides=unfencing
  Operations: monitor interval=60s (fence-scsi-monitor-interval-60s)
[root@r8-node-01 ~]# pcs resource
  * d-01        (ocf::pacemaker:Dummy):  Started r8-node-02
  * d-02        (ocf::pacemaker:Dummy):  Started r8-node-03
  * d-03        (ocf::pacemaker:Dummy):  Started r8-node-01
  * d-04        (ocf::pacemaker:Dummy):  Started r8-node-02
  * d-05        (ocf::pacemaker:Dummy):  Started r8-node-03
  * d-06        (ocf::pacemaker:Dummy):  Started r8-node-01
[root@r8-node-01 ~]# sg_persist -n -i -k -d $disk2
  PR generation=0x0, there are NO registered reservation keys
[root@r8-node-01 ~]# pcs stonith update-scsi-devices fence-scsi add $disk2 remove $disk1
[root@r8-node-01 ~]# echo $?
0
[root@r8-node-01 ~]# pcs stonith config
 Resource: fence-scsi (class=stonith type=fence_scsi)
  Attributes: devices=/dev/disk/by-id/scsi-3600140547721f8ee2774aa8bac6d8ebe pcmk_host_check=static-list pcmk_host_list="r8-node-01 r8-node-02 r8-node-03" pcmk_reboot_action=off
  Meta Attrs: provides=unfencing
  Operations: monitor interval=60s (fence-scsi-monitor-interval-60s)

Scsi devices have been updated

[root@r8-node-01 ~]# journalctl -f -n0
-- Logs begin at Tue 2021-10-26 10:49:32 CEST. --
Oct 27 12:22:14 r8-node-01 kernel:  sdb: sdb1
Oct 27 12:22:14 r8-node-01 kernel:  sda: sda1
Oct 27 12:22:14 r8-node-01 pacemaker-fenced[11058]:  notice: Added 'fence-scsi' to device list (1 active device)
Oct 27 12:22:14 r8-node-01 pacemaker-controld[11062]:  notice: State transition S_IDLE -> S_POLICY_ENGINE
Oct 27 12:22:14 r8-node-01 pacemaker-schedulerd[11061]:  notice: Calculated transition 4, saving inputs in /var/lib/pacemaker/pengine/pe-input-819.bz2
Oct 27 12:22:14 r8-node-01 pacemaker-controld[11062]:  notice: Transition 4 (Complete=0, Pending=0, Fired=0, Skipped=0, Incomplete=0, Source=/var/lib/pacemaker/pengine/pe-input-819.bz2): Complete
Oct 27 12:22:14 r8-node-01 pacemaker-controld[11062]:  notice: State transition S_TRANSITION_ENGINE -> S_IDLE

[root@r8-node-02 ~]# journalctl -f -n0
-- Logs begin at Tue 2021-10-26 10:49:29 CEST. --
Oct 27 12:22:14 r8-node-02 kernel:  sdb: sdb1
Oct 27 12:22:14 r8-node-02 kernel:  sda: sda1
Oct 27 12:22:14 r8-node-02 pacemaker-fenced[6045]:  notice: Added 'fence-scsi' to device list (1 active device)

[root@r8-node-03 ~]# journalctl -f -n0
-- Logs begin at Tue 2021-10-26 10:49:26 CEST. --
Oct 27 12:22:14 r8-node-03 kernel:  sdb: sdb1
Oct 27 12:22:14 r8-node-03 kernel:  sda: sda1
Oct 27 12:22:14 r8-node-03 pacemaker-fenced[10780]:  notice: Added 'fence-scsi' to device list (1 active device)

No resources were restarted.
Comment 16 errata-xmlrpc 2022-05-10 14:50:48 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (pcs bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:1978