Bug 1518477 – Disable raid5 journal function

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Bug 1518477 - Disable raid5 journal function

Summary:	Disable raid5 journal function

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	mdadm (Show other bugs)
Sub Component:
Version:	7.5
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	rc
Target Release:	---
Assigned To:	XiaoNi
QA Contact:	guazhang@redhat.com
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	1442258
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Reported:	2017-11-28 22:21 EST by XiaoNi
Modified:	2018-04-10 14:31 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	mdadm-4.0-10.el7
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2018-04-10 14:29:29 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2018:0990	None	None	None	2018-04-10 14:31 EDT

Groups: None (edit)

Comment 4 guazhang@redhat.com 2017-12-13 04:01:03 EST

Hello

I want to clear some question on this bug,

1. what's mdadm version fixed this bug ?

2. Did it just disable raid5 journal function, not raid4 and raid6 ?

Comment 5 Nigel Croxon 2017-12-13 06:42:17 EST

Hello,

1.  mdadm-4.0-10.el7

2. Correct, it just disabled raid5 write-journal, and NOT raid4 and raid6.

-Nigel

Comment 6 guazhang@redhat.com 2017-12-13 07:07:18 EST

Hello


from mdadm --create --help page, the  --write-journal has disabled, so I'm don't test journal function on raid4 and raid6.

my test script will run MD journal tests when "--write-journal" option in mdadm --create --help page

Is it Ok for you? 


thanks
guazhang

Comment 7 Nigel Croxon 2017-12-13 11:52:46 EST

Yes, that is a good test to check to see if -write-journal is enable/disabled.

The second line below will NOT show up on mdadm-4.0-10.el7.

--delay=           -d : bitmap update delay in seconds.
--write-journal=      : Specify journal device for RAID-4/5/6 array
--consistency-policy= : Specify the policy that determines how the array

Comment 8 guazhang@redhat.com 2017-12-13 20:41:44 EST

Thanks for your respond, the mdadm-4.0-10.el7 has disabled journal function on radi5, move to verified

Comment 11 errata-xmlrpc 2018-04-10 14:29:29 EDT

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, 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-2018:0990

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