# cfgmgr # lsdev -Cc disk hdisk0 Available 11-09-00-8,0 16 Bit LVD SCSI Disk Drive hdisk1 Available 11-09-00-10,0 16 Bit LVD SCSI Disk Drive # lsvg rootvg # lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk1 active 542 148 70..00..00..00..78 hdisk0 missing 542 148 70..00..00..00..78 # unmirrorvg rootvg hdisk0 0516-1246 rmlvcopy: If hd5 is the boot logical volume, please run 'chpv -c ' as root user to clear the boot record and avoid a potential boot off an old boot image that may reside on the disk from which this logical volume is moved/removed. 0516-1132 unmirrorvg: Quorum requirement turned on, reboot system for this to take effect for rootvg. 0516-1144 unmirrorvg: rootvg successfully unmirrored, user should perform bosboot of system to reinitialize boot records. Then, user must modify bootlist to just include: hdisk1. # lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk1 active 542 148 70..00..00..00..78 hdisk0 missing 542 542 109..108..108..108..109 # chpv -c hdisk0 # reducevg rootvg hdisk0 # lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk1 active 542 148 70..00..00..00..78 # bootlist -m normal hdisk1