LV 相关（Logical Volume）命令

lslv -n hdisk6 testlv
从hdisk6上的VGDA中读取关于testlv的信息，不管testlv是否在hdisk6上。#lslv -n hdisk0 lv00
LOGICAL VOLUME:       lv00                     VOLUME GROUP:     rootvg
LV IDENTIFIER:        005f31be00004c00000001111de23f31.14 PERMISSION:       read/write
VG STATE:             active/complete          LV STATE:         closed/syncd
TYPE:                 jfs                      WRITE VERIFY:     off
MAX LPs:              512                      PP SIZE:          256 megabyte(s)
COPIES:               1                      SCHED POLICY:     parallel（读写调度策略）
LPs:                  1                        PPs:              1
STALE PPs:            0                        BB POLICY:        relocatable
INTER-POLICY:         minimum                  RELOCATABLE:      yes
INTRA-POLICY:         middle                   UPPER BOUND:      32
MOUNT POINT:          /test                    LABEL:            /test
MIRROR WRITE CONSISTENCY: on/ACTIVE                              
EACH LP COPY ON A SEPARATE PV ?: yes                                    
Serialize IO ?:       NO

getlvcb -AT lv1
显示LVCB信息
#getlvcb -AT lv00
          AIX LVCB
          intrapolicy = m
          copies = 1
          interpolicy = m
          lvid = 005f31be00004c00000001111de23f31.14
          lvname = lv00
          label = /test
          machine id = F31BE4C00
          number lps = 1
          relocatable = y
          strict = y
          stripe width = 0
          stripe size in exponent = 0
          type = jfs
          upperbound = 32
          fs = log=/dev/hd8:options=rw:account=false
          time created   = Thu May 24 11:55:36 2007
          time modified = Thu May 24 15:03:33 2007

cplv -v dumpvg -y lv9 lv1
将lv1拷贝到 dumpvg里的lv9上。

chlv -d pr lv1
修改LV的读写策略，有以下几种策略：
p：Establishes a parallelscheduling policy.
ps：Parallel write with sequentialread policy. All mirrors are written in parallel but always read from first mirror if first mirror is available.
pr：Parallel write round robbinread. This policy is similar to the parallel policy except an attempt is madeto spread the reads to the logical volume more evenly across all mirrors.
s：Establishes a sequentialscheduling policy.

mklvcopy 镜像逻辑卷

splitlvcopy 分离逻辑卷的镜像（分离到另一个LV)