AIX上增加逻辑卷时报错误0516-787 extendlv: Maximum allocation for logical volume

AIX上增加逻辑卷时报错误0516-787 extendlv: Maximum allocation for logical volume jdelv02 is 512.

?Fv/nf {yw!b0在往aix使用chfs -a size=xx /fs 命令增加逻辑卷的时候，
myQQz]'_0有时候增加到一定大小的时候，会报出0516-787 extendlv: Maximum allocation for logical volume jdelv02 is 512.这样的一个错误ITPUB个人空间2Fsz7L,y t!C
原因主要是因为在默认情况下的逻辑卷允许的最大逻辑分区数为512,因此在逻辑卷大小超出了这个限制的时候，就会报0516这个错误了。
-cX,U#?%CkE1a0当然你可以查看这个lv以确认是否为512:

使用lslv来看：
-I"y.Y B2`/_'N0# lslv jdelv02ITPUB个人空间u2l)Fb:a U9Ol
LOGICAL VOLUME: jdelv02 VOLUME GROUP: jdevg1
9er/bu4VF0LV IDENTIFIER: 00c4924e00004c0000000115d098136f.1 PERMISSION: read/write

? w.g^K/qUd0VG STATE: active/complete LV STATE: opened/syncdITPUB个人空间!dI&@/{9A7]:cVb
TYPE: jfs2 WRITE VERIFY: offITPUB个人空间 jy*G(D(Z[(F o8u
MAX LPs: 512 PP SIZE: 128 megabyte(s)ITPUB个人空间v^ }g-e"s3d
COPIES: 1 SCHED POLICY: parallel
a.M1r'j8e.a0LPs: 800 PPs: 800
"d6t(M5[F.|)H v!_0STALE PPs: 0 BB POLICY: relocatableITPUB个人空间tOqO(FAN
INTER-POLICY: minimum RELOCATABLE: yes
7V/mT/TL0INTRA-POLICY: middle UPPER BOUND: 64
~u2?I6F s2`-w0MOUNT POINT: /oradata02 LABEL: /oradata02
J+`;{1T;e!F0MIRROR WRITE CONSISTENCY: on/ACTIVE
5j Oz0]&z!F0nn R&|0EACH LP COPY ON A SEPARATE PV ?: yes ITPUB个人空间??E"H%~N+Z9z
Serialize IO ?: NO

MAX LPs为512，确实是超出了这个限制，

我们可以使用smit工具修改这个限制：ITPUB个人空间SX d8y.bF#l
smit chlv==>Change a logical Volume==>Logical volume name==>F4(选择你要修改的lvname)回车ITPUB个人空间?
ey3}!x#T'_
在MAXIMUM NUMBER of LOGICAL PARTITIONS [1024] 把数值一改，回车后，见到左上角“OK”ITPUB个人空间9n9SNh6}J*R#J&O9w5T*h
表示为修改成功。esc+0退出smit后，再次增加，
8P2I~2]e.k9I;iW"m0# chfs -a size=100G /oradata02
"K7X%@!v0wg'L0Filesystem size changed to 209715200
Cf$Mk'W0OK。成功。ITPUB个人空间'X(B:M1{}$W.DeYf+u*v\
# lslv jdelv02

d7H&Q%wv)H!V0LOGICAL VOLUME: jdelv02 VOLUME GROUP: jdevg1
Ub9rNjq6] zOD0LV IDENTIFIER: 00c4924e00004c0000000115d098136f.1 PERMISSION: read/writeITPUB个人空间,N+c1G&}4H1_I
VG STATE: active/complete LV STATE: opened/syncdITPUB个人空间 eg8Gn bN)\}+r0BIHE
TYPE: jfs2 WRITE VERIFY: offITPUB个人空间9sNc,n j5S2^5}^
MAX LPs: 1024 PP SIZE: 128 megabyte(s)
!lA9o,t'{9p0COPIES: 1 SCHED POLICY: parallelITPUB个人空间(g5a~.r3teG{u
LPs: 800 PPs: 800ITPUB个人空间w:S6PE]ea
CJ0P
STALE PPs: 0 BB POLICY: relocatableITPUB个人空间*B(f$x8e V%^3x.k3e
INTER-POLICY: minimum RELOCATABLE: yes
/[J/@N jcV"o0INTRA-POLICY: middle UPPER BOUND: 64ITPUB个人空间Ix3Nc)t1d3oTt
MOUNT POINT: /oradata02 LABEL: /oradata02
8RPnX` ^OQ,J
Q$b0MIRROR WRITE CONSISTENCY: on/ACTIVE ITPUB个人空间'` VdB?4~1U
EACH LP COPY ON A SEPARATE PV ?: yes ITPUB个人空间6y6~2fN7["^Klu
Serialize IO ?: NO

可以看到maxlps已经是1024.