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DescriptionHeinz Mauelshagen
2019-06-14 15:15:05 UTC
Description of problem:
lvconvert used to support upconverting a linear LV to a 2-legged 'mirror' in RHEL6 with the 2nd legged striped with 'lvconvert --type mirror --mirrors 1 --stripes 4 $LV'
Version-Release number of selected component (if applicable):
lvm 2.03.02(2)-RHEL8 / kernel 4.18.0-100.el8.x86_64
How reproducible:
Alsways
Steps to Reproduce:
1. Run lvconvert as above with enough free PVs and space
2.
3.
Actual results:
Fails with 'Command does not accept option: --stripes 4.'
Expected results:
Should create the 2nd leg striped as before.
Additional info:
Comment 1Heinz Mauelshagen
2019-06-14 15:21:33 UTC
2-legged 'mirror' resulting from RHEL6 'lvconvert --type mirrro --mirrors 1 --stripes 4 t/t' activated ok on RHEL8:
[root@vm147 ~]# lvs -aoname,size,attr,segtype,devices t
LV LSize Attr Type Devices
t 512.00m mwi-a-m--- mirror t_mimage_0(0),t_mimage_1(0)
[t_mimage_0] 512.00m iwi-aom--- linear /dev/sda(0)
[t_mimage_1] 512.00m iwi-aom--- striped /dev/sdb(0),/dev/sdc(0),/dev/sdd(0),/dev/sde(0)
[t_mlog] 4.00m lwi-aom--- linear /dev/sdg(0)
Downconvert to linear on RHEL8:
[root@vm147 ~]# lvconvert -m0 t/t
Logical volume t/t converted.
[root@vm147 ~]# lvs -aoname,size,attr,segtype,devices t
LV LSize Attr Type Devices
t 512.00m -wi-a----- linear /dev/sda(0)
RHEL8 regression rejecting --stripes:
[root@vm147 ~]# lvconvert --ty mirror -m1 --stripes 4 t/t
Command does not accept option: --stripes 4.
Because the 'mirror' LV ca be activated fine, I assume it's the CLI changes which don't allow this 2nd striped leg creation any more by rejecting the --stripes option during upconvert from linear.
[root@vm147 ~]# uname -r
4.18.0-100.el8.x86_64
[root@vm147 ~]# lvm version
LVM version: 2.03.02(2)-RHEL8 (2019-01-04)
Library version: 1.02.155-RHEL8 (2019-01-04)
Driver version: 4.40.0
Configuration: ./configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-default-dm-run-dir=/run --with-default-run-dir=/run/lvm --with-default-pid-dir=/run --with-default-locking-dir=/run/lock/lvm --with-usrlibdir=/usr/lib64 --enable-fsadm --enable-write_install --with-user= --with-group= --with-device-uid=0 --with-device-gid=6 --with-device-mode=0660 --enable-pkgconfig --enable-cmdlib --enable-dmeventd --enable-blkid_wiping --with-cluster=internal --enable-cmirrord --with-udevdir=/usr/lib/udev/rules.d --enable-udev_sync --with-thin=internal --with-cache=internal --enable-lvmpolld --enable-lvmlockd-dlm --enable-lvmlockd-sanlock --enable-dbus-service --enable-notify-dbus --enable-dmfilemapd --with-vdo=internal --with-vdo-format=/usr/bin/vdoformat --disable-silent-rules
Comment 2Heinz Mauelshagen
2019-07-08 17:16:29 UTC
As we had the logic to add striped 'mirror' legs before and we regressed during the command line rework, enable it again.
lvm2 stable commit e3c8cebd87f9bd7591529f3d65783cc6f1fd3f92
Comment 3Jonathan Earl Brassow
2019-07-08 22:50:52 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.
https://access.redhat.com/errata/RHBA-2019:3654