chfs -a size=+1G /pdflv
0516-787 extendlv: Maximum allocation for logical volume pdflv is 512.
因为MAX LPs已经用满了。
root@test://>lslv -L pdflv
LOGICAL VOLUME: pdflv VOLUME GROUP: rootvg
LV IDENTIFIER: 00c009cf00004c0000000111dfaff6bf.14 PERMISSION: read/write
VG STATE: active/complete LV STATE: opened/syncd
TYPE: jfs2 WRITE VERIFY: off
MAX LPs: 512 PP SIZE: 32 megabyte(s)
COPIES: 1 SCHED POLICY: parallel
LPs: 32 PPs: 32
STALE PPs: 0 BB POLICY: relocatable
INTER-POLICY: minimum RELOCATABLE: yes
INTRA-POLICY: middle UPPER BOUND: 32
MOUNT POINT: /pdffile LABEL: /pdffile
MIRROR WRITE CONSISTENCY: on/ACTIVE
EACH LP COPY ON A SEPARATE PV ?: yes
Serialize IO ?: NO
现在的MAX LPs已经512，如果扩1G空间，需要增加1024m/pp size=32个lps
chlv -x 544 lvname
然后再chfs -a size=+1G /pdflv 即可扩展文件系统。