Bug 234314

Summary: "mirroring with logging" with three disks, it seems not to possible to define which disk gets which part.
Product: [Retired] Red Hat Cluster Suite Reporter: Frank Weyns <fweyns>
Component: lvm2-clusterAssignee: LVM and device-mapper development team <lvm-team>
Status: CLOSED DUPLICATE QA Contact: Cluster QE <mspqa-list>
Severity: medium Docs Contact:
Priority: medium    
Version: 4CC: agk, ccaulfie, dwysocha, jbrassow, mbroz, mkranz, prockai, rkenna
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-07-27 16:08:56 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:
Bug Depends On:    
Bug Blocks: 233708    

Description Frank Weyns 2007-03-28 13:36:10 UTC 
Description of problem: RHEL 4.5 Beta hostbased mirroring

When using "mirroring with logging" with three disks, it seems not to possible
to define which disk gets which part. (RHEL 5 doc state it should work)

example:
Disk dm-11 is a disk on location CCAZ
disks dm5 en dm-6 are disks on location CCAN

De configuration mqu_QTTEST is not Ok because mimage0 and 1 are both on
the same location ...

[root@bsxe01001 ~]# lvs -a -o +devices
  LV                      VG     Attr   LSize   Origin Snap%  Move Log
Copy%  Devices
  log_QTTEST              vgmqm  mwi-a- 300.00M
log_QTTEST_mlog     0.00 log_QTTEST_mimage_0(0),log_QTTEST_mimage_1(0)
  [log_QTTEST_mimage_0]   vgmqm  iwi---
300.00M                                             /dev/dm-11(1)
  [log_QTTEST_mimage_1]   vgmqm  iwi---
300.00M                                             /dev/dm-5(50)
  [log_QTTEST_mlog]       vgmqm  lwi---
4.00M                                             /dev/dm-6(50)
  mqu_QTTEST              vgmqm  mwi-a- 200.00M
mqu_QTTEST_mlog     0.00 mqu_QTTEST_mimage_0(0),mqu_QTTEST_mimage_1(0)
  [mqu_QTTEST_mimage_0]   vgmqm  iwi---
200.00M                                             /dev/dm-5(0)
  [mqu_QTTEST_mimage_1]   vgmqm  iwi---
200.00M                                             /dev/dm-6(0)
  [mqu_QTTEST_mlog]       vgmqm  lwi---
4.00M                                             /dev/dm-11(0)
  qmgrs_QTTEST            vgmqm  mwi-a- 300.00M
qmgrs_QTTEST_mlog   0.00
qmgrs_QTTEST_mimage_0(0),qmgrs_QTTEST_mimage_1(0)
  [qmgrs_QTTEST_mimage_0] vgmqm  iwi---
300.00M                                             /dev/dm-6(51)
  [qmgrs_QTTEST_mimage_1] vgmqm  iwi---
300.00M                                             /dev/dm-11(76)
  [qmgrs_QTTEST_mlog]     vgmqm  lwi---
4.00M                                             /dev/dm-5(125)

Hardware used:
SUN V40z with RHEL4 Update 5 beta

kernel-smp-2.6.9-50.EL

cman-kernel-smp-2.6.9-49.2
cman-kernheaders-2.6.9-49.2
cman-1.0.17-0

dlm-1.0.1-2
dlm-kernel-smp-2.6.9-46.14
dlm-kernheaders-2.6.9-46.14

GFS-kernheaders-2.6.9-71.0
GFS-6.1.13-0
GFS-kernel-smp-2.6.9-71.0

ccs-1.0.10-0

cmirror-kernel-smp-2.6.9-25.0
cmirror-1.0.1-1

lvm2-2.02.21-4.el4
lvm2-cluster-2.02.21-3.el4
Comment 1 Corey Marthaler 2007-03-28 15:28:40 UTC 
This is a dup of bz 199580. There a work around given in comment #7 of that bug,
but I agree, this needs to be made even easier then that.
Comment 2 Jonathan Earl Brassow 2007-07-27 16:08:56 UTC 
Additionally, the lvm manual addresses this.

Closing as dup.

*** This bug has been marked as a duplicate of 199580 ***