Bug 1848467

Summary:	Error while attaching the lvmcache to LUKS device thinpool
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	SATHEESARAN <sasundar>
Component:	rhhi	Assignee:	Gobinda Das <godas>
Status:	CLOSED ERRATA	QA Contact:	SATHEESARAN <sasundar>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.5	CC:	rhs-bugs
Target Milestone:	---
Target Release:	RHHI-V 1.8
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:
Clones:	1848588 (view as bug list)		Environment:
Last Closed:	2020-08-04 14:52:32 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:
Embargoed:
Bug Depends On:	1848588
Bug Blocks:	1779977

Description SATHEESARAN 2020-06-18 12:16:50 UTC

Description of problem:
-----------------------
When NBDE setup is completed, the target device is created under /dev/mapper/luks_sdx. When attempting for RHHI-V deployment from web console(cockpit), and attaching the LVM cache, logic uses device name as '/dev/luks_sdc' instead of '/dev/mapper/luks_sdc'

Version-Release number of selected component (if applicable):
-------------------------------------------------------------
cockpit-ovirt-dashboard-0.14.8


How reproducible:
-----------------
Always


Steps to Reproduce:
-------------------
1. Start the HC deployment from cockpit
2. On the bricks tab provide the device name as '/dev/mapper/luks_sdc'
3. Enable LVM cache and provide SSD as '/dev/sdg'

Actual results:
---------------
Generated inventory file contains reference to '/dev/luks_sdc'

Expected results:
------------------
Generated inventory file should contain '/dev/mapper/luks_sdc'

Comment 1 SATHEESARAN 2020-06-18 12:24:17 UTC

The generated inventory contains:

<snip>
      gluster_infra_cache_vars:
        - vgname: gluster_vg_luks_sdc
          cachedisk: '/dev/luks_sdc,/dev/sdg'
          cachelvname: cachelv_gluster_thinpool_gluster_vg_luks_sdc
          cachethinpoolname: gluster_thinpool_gluster_vg_luks_sdc
          cachelvsize: 220G
          cachemode: writethrough
</snip>

Expected is that the device should be */dev/mapper/luks_sdc*

<snip>
      gluster_infra_cache_vars:
        - vgname: gluster_vg_luks_sdc
          cachedisk: '/dev/mapper/luks_sdc,/dev/sdg'
          cachelvname: cachelv_gluster_thinpool_gluster_vg_luks_sdc
          cachethinpoolname: gluster_thinpool_gluster_vg_luks_sdc
          cachelvsize: 220G
          cachemode: writethrough
</snip>

Comment 2 SATHEESARAN 2020-06-18 12:26:59 UTC

This error is also true for multipath configuration enabled, where the device name is '/dev/mapper/WWID'

for example: /dev/mapper/3600304801a48610125f9a6571e612c29

Comment 3 SATHEESARAN 2020-07-14 06:37:05 UTC

Tested with cockpit-ovirt-dashboard-0.14.9.el8rhgs

When attaching the LVM cache ( /dev/sdx ) with the LUKS device ( /dev/mapper/luks_sdx ),
the deployment happens in the right way.

Comment 6 errata-xmlrpc 2020-08-04 14:52:32 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 (RHHI for Virtualization 1.8 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-2020:3314