mirror volume split

[Anatoly Pugachev <matorola@gmail.com>]

Hello!

Trying to split one of mirror volumes :

# lvs
  LV                  VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert 
  gatewayVol          vg1  rwi-aor---   8.00g                                    100.00

# lvconvert --splitmirrors 1 -n split1 vg1/gatewayVol
# lvs
  LV                  VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  gatewayVol          vg1  -wi-ao----   8.00g
  split1              vg1  -wi-a-----   8.00g

converting original volume back to mirror configuration, leaving split1 volume intact:

# lvconvert -m1 vg1/gatewayVol
  device-mapper: create ioctl on vg1-gatewayVol_rimage_1 failed: Device or resource busy
  Failed to lock logical volume vg1/gatewayVol.

# lvs
  LV                  VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  gatewayVol          vg1  -wi-ao----   8.00g
  gatewayVol_rimage_1 vg1  -wi-------   8.00g
  gatewayVol_rmeta_0  vg1  -wi-a-----   4.00m
  gatewayVol_rmeta_1  vg1  -wi-a-----   4.00m
  split1              vg1  -wi-a-----   8.00g
 

So, what I should do now? What is rimage* and rmeta* ? How do I get rid of them, preserving data on gatewayVol and split1 volumes?

Thanks.

PS: opensuse 13.2

# lvm version 
  LVM version:     2.02.114(2) (2014-11-28)
  Library version: 1.03.01 (2014-11-28)
  Driver version:  4.27.0

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