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从楼主提供的信息来看,vg00有3个PV,空闲空间有64G,但看不出空闲空间在三个PV上是如何分布的,也看不出ORACLE逻辑卷是分布在哪个PV上.
我猜测的可能性是不是ORACLE逻辑卷的PE分配策略是连续分配,而不是缺省的非连续分配.如果是这样的话,ORACLE卷扩到15G(具体扩大多少不知道),而它所在的PV空闲空间已经没有这么多了,所以报错.
以下是一个例子,环境是:
VG00含两块盘,/C1T2D0和/C2T2D0,其中/C2T2D0空间已满,/C1T2D0大约有13G的空间,
ORACLE卷分布在/C2T2D0上,PE分配策略是连续分配的,此时再扩,就会报错.
报错信息和楼主的不完全一样,但可供参考.
操作如下:
dh4:/#lvdisplay /dev/vg00/lvol3
--- Logical volumes ---
LV Name /dev/vg00/lvol3
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 1000
Current LE 250
Allocated PE 250
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default
dh4:/#lvextend -L 1200 /dev/vg00/lvol3
lvextend: Not enough free physical extents available.
Logical volume \"/dev/vg00/lvol3\" could not be extended.
Failure possibly caused by contiguous allocation policy.
Failure possibly caused by strict allocation policy
dh4:/#vgdisplay vg00
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 9
Open LV 9
Max PV 16
Cur PV 2
Act PV 2
Max PE per PV 4350
VGDA 4
PE Size (Mbytes) 4
Total PE 8680
Alloc PE 5281
Free PE 3399
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0 |
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