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Bug 1518477 - Disable raid5 journal function
Summary: Disable raid5 journal function
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: mdadm
Version: 7.5
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: XiaoNi
QA Contact:
Depends On:
Blocks: 1442258
TreeView+ depends on / blocked
Reported: 2017-11-29 03:21 UTC by XiaoNi
Modified: 2018-04-10 18:31 UTC (History)
7 users (show)

Fixed In Version: mdadm-4.0-10.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2018-04-10 18:29:29 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:0990 None None None 2018-04-10 18:31:22 UTC

Comment 4 2017-12-13 09:01:03 UTC

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 11:42:17 UTC

1.  mdadm-4.0-10.el7

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


Comment 6 2017-12-13 12:07:18 UTC

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? 


Comment 7 Nigel Croxon 2017-12-13 16:52:46 UTC
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 2017-12-14 01:41:44 UTC
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 18:29:29 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, and where to find the updated
files, follow the link below.

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

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