Bug 1987170

Summary: Blivet should not set chunk size for RAID1
Product: Red Hat Enterprise Linux 8 Reporter: Vojtech Trefny <vtrefny>
Component: python-blivetAssignee: Vojtech Trefny <vtrefny>
Status: CLOSED ERRATA QA Contact: Release Test Team <release-test-team-automation>
Severity: high Docs Contact:
Priority: unspecified    
Version: 8.5CC: farrotin, guazhang, jstodola, mlewando, pkotvan, rmeggins
Target Milestone: betaKeywords: Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: python-blivet-3.4.0-4.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1987176 (view as bug list) Environment:
Last Closed: 2021-11-09 18:49:19 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:    
Bug Blocks: 1986630, 1987176    

Description Vojtech Trefny 2021-07-29 06:55:39 UTC 
Blivet currently sets default chunk size (512 KiB) for all raid levels. RAID 1 doesn't use chunks and when creating a RAID 1 array using mdadm the --chunk option used to be silently ignored but starting with mdadm-4.2-rc1_4 this results in an error and the array is not created so we need to stop setting chunk size when creating RAID 1 arrays.

```
# mdadm --create --run md127 --chunk 512 --level raid1 --raid-devices 2 /dev/sdb1 /dev/sdb2 --metadata=1.0                         
mdadm: specifying chunk size is forbidden for this level
```
Comment 1 Vojtech Trefny 2021-07-29 12:46:24 UTC 
upstream PR: https://github.com/storaged-project/blivet/pull/969
Comment 5 Rich Megginson 2021-08-08 15:33:15 UTC 
*** Bug 1990757 has been marked as a duplicate of this bug. ***
Comment 11 Vojtech Trefny 2021-09-16 14:42:23 UTC 
*** Bug 1989958 has been marked as a duplicate of this bug. ***
Comment 13 errata-xmlrpc 2021-11-09 18:49:19 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 (python-blivet 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/RHBA-2021:4297