Bug 432812

Summary: dmraid is unable to activate a subset
Product: Red Hat Enterprise Linux 5 Reporter: Marco Ceci <mceci>
Component: dmraidAssignee: Ian Kent <ikent>
Status: CLOSED ERRATA QA Contact: Corey Marthaler <cmarthal>
Severity: high Docs Contact:
Priority: high    
Version: 5.1CC: agk, coughlan, dwysocha, heinzm, lhh, mbroz, pdemauro, prockai
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-01-20 20:47:48 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Marco Ceci 2008-02-14 15:55:35 UTC 
Description of problem:

dmraid is unable to activate a subset. This problem is aggravated by the fact
that dmraid returns the name of the subset instead of the name of the superset
when running the "dmraid -s -craidname" command. The output of "dmraid -s
-craidname" is also used by mkinitrd this means that the system will not be able
to activate any raid set at boot time.

Version-Release number of selected component (if applicable):

dmraid-1.0.0.rc13-6.1 with the patch to avoid the segmentation fault from BZ#427550

How reproducible:

always

Steps to Reproduce:
1. create a sparse device using dm loop and copy the metadata attached
2. 

# dmraid -s
*** Group superset .ddf1_disks
--> Active Subset
name   : ddf1_VERT02
size   : 312237824
stride : 128
type   : mirror
status : ok
subsets: 0
devs   : 1
spares : 0


3.
# /sbin/dmraid -s -craidname
ddf1_VERT02

4. #try to activate the subset
# dmraid -ay -i -p ddf1_VERT02
No RAID sets and with names: "ddf1_VERT02"

5. #using the name of the superset it works
dmraid -ay -i -p .ddf1_disks
ERROR: creating degraded mirror mapping for "ddf1_VERT02"
# the error is ok as there is only one disk in the mirror

Actual results:

an error while trying to activate a subset

Expected results:

A subset activated

Additional info:

all the metadata and information to reproduce this issue are on BZ#427550
Comment 5 RHEL Program Management 2008-06-02 20:18:22 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.
Comment 6 Tony Fu 2008-09-10 00:52:50 UTC 
User mceci's account has been closed
Comment 7 Heinz Mauelshagen 2008-09-18 16:13:51 UTC 
In package dmraid/1.0.0.rc13/13.el5
Comment 11 errata-xmlrpc 2009-01-20 20:47:48 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHEA-2009-0078.html