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要删除一个asm磁盘组，这个磁盘组对应的卷组也要被删掉，释放硬盘空间。处理如下：删除datavg卷组
# lsvg -l datavg
datavg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
lv_asm jfs 2400 2400 2 closed/syncd N/A
# lspv
hdisk0 0006c86a0451ed0f rootvg active
hdisk1 000e5e0cb4179dce dsgvg active
hdisk2 000e5e0cb3d4c86c dsgvg active
hdisk3 000e5e0cb3d53940 datavg2 active
hdisk4 000e5e0cb3d59d35 datavg active
hdisk5 000e5e0cb3d5f310 datavg active
hdisk6 000e5e0cb3d656b6 datavg active
hdisk7 000e5e0cb3d6b725 datavg2 active
hdisk8 000e5e0cb3eca697 rootvg active
# reducevg datavg hdisk4
0516-016 ldeletepv: Cannot delete physical volume with allocated
partitions. Use either migratepv to move the partitions or
reducevg with the -d option to delete the partitions.
0516-884 reducevg: Unable to remove physical volume hdisk4.
# reducevg -d datavg hdisk4
0516-914 rmlv: Warning, all data belonging to logical volume
lv_asm on physical volume hdisk4 will be destroyed.
rmlv: Do you wish to continue? y(es) n(o)? y
#
#
# lspv
hdisk0 0006c86a0451ed0f rootvg active
hdisk1 000e5e0cb4179dce dsgvg active
hdisk2 000e5e0cb3d4c86c dsgvg active
hdisk3 000e5e0cb3d53940 datavg2 active
hdisk4 000e5e0cb3d59d35 None
hdisk5 000e5e0cb3d5f310 datavg active
hdisk6 000e5e0cb3d656b6 datavg active
hdisk7 000e5e0cb3d6b725 datavg2 active
hdisk8 000e5e0cb3eca697 rootvg active
# reducevg -d datavg hdisk5
0516-914 rmlv: Warning, all data belonging to logical volume
lv_asm on physical volume hdisk5 will be destroyed.
rmlv: Do you wish to continue? y(es) n(o)? y
rmlv: Logical volume lv_asm is removed.
# reducevg -d datavg hdisk6
ldeletepv: Volume Group deleted since it contains no physical volumes.
#
#
# lsvg
rootvg
dsgvg
datavg2
已经被删除
# lspv
hdisk0 0006c86a0451ed0f rootvg active
hdisk1 000e5e0cb4179dce dsgvg active
hdisk2 000e5e0cb3d4c86c dsgvg active
hdisk3 000e5e0cb3d53940 datavg2 active
hdisk4 000e5e0cb3d59d35 None
hdisk5 000e5e0cb3d5f310 None
hdisk6 000e5e0cb3d656b6 None
hdisk7 000e5e0cb3d6b725 datavg2 active
hdisk8 000e5e0cb3eca697 rootvg active
#
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