Bug 1000522

Summary: Conga does not disable scsi_reserve service even if it is enabled by it
Product: Red Hat Enterprise Linux 5 Reporter: Jan Pokorný [poki] <jpokorny>
Component: congaAssignee: Ryan McCabe <rmccabe>
Status: CLOSED NOTABUG QA Contact: Cluster QE <mspqa-list>
Severity: medium Docs Contact:
Priority: medium    
Version: 5.10CC: cluster-maint, fdinitto, pzimek, rsteiger
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 887170 Environment:
Last Closed: 2013-08-24 20:02:57 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 887170    
Bug Blocks:    

Description Jan Pokorný [poki] 2013-08-23 14:55:23 UTC 
+++ This bug was initially created as a clone of Bug #887170 +++

As per [bug 887170 comment 11]

> Adding the fourth node virt-159 into the cluster set the service startup
> configuration as follows:
> [root@virt-159 ~]# chkconfig --list | egrep "rgmanager|cman|clvmd|scsi_reserve"
> clvmd          	0:off	1:off	2:on	3:on	4:on	5:on	6:off
> cman           	0:off	1:off	2:on	3:on	4:on	5:on	6:off
> rgmanager      	0:off	1:off	2:on	3:on	4:on	5:on	6:off
> scsi_reserve   	0:off	1:off	2:on	3:on	4:on	5:on	6:off
> 
> Removing the same node again sets the services to disabled, except scsi_reserve:
> [root@virt-159 ~]# chkconfig --list | egrep "rgmanager|cman|clvmd|scsi_reserve"
> clvmd          	0:off	1:off	2:off	3:off	4:off	5:off	6:off
> cman           	0:off	1:off	2:off	3:off	4:off	5:off	6:off
> rgmanager      	0:off	1:off	2:off	3:off	4:off	5:off	6:off
> scsi_reserve   	0:off	1:off	2:on	3:on	4:on	5:on	6:off

Not sure if it is by design, that we ignore fact we enabled scsi_reserve and
not disabling it again when removing the respective node.

+ there may be more such instances (to be investigated)
Comment 1 Ryan McCabe 2013-08-24 02:22:44 UTC 
It's by design. SCSI reservations may be needed for non-cluster related storage. We can't easily and safely decide whether or not this is the case from conga, though.