mirror된 2개의 디스크를 하나의 디스크로 alt_disk_install 하기

rootvg가 디스크 2개에 미러되어있고, alt_disk용이 1개일경우

[image.data 생성 및 편집]

1. #mkszfile

2. #ls -al

-rw-r--r--    1 root     system        10421 Apr 27 15:46 image.data

3. #vi image.data

lv_data:

        VOLUME_GROUP= rootvg

        LV_SOURCE_DISK_LIST= hdisk0 hdisk1       ---> 여기서 hdisk1 삭제.  image.data에서 미러아닌것처럼 수정

        LV_IDENTIFIER= 00c262ee00004c000000011d41dcd7fb.13

        LOGICAL_VOLUME= tslv

        VG_STAT= active/complete

        TYPE= jfs

        MAX_LPS= 512

        COPIES= 2         --> 1로 수정

        LPs= 2

        STALE_PPs= 0

        INTER_POLICY= minimum

        INTRA_POLICY= middle

        MOUNT_POINT=

        MIRROR_WRITE_CONSISTENCY= on/ACTIVE

        LV_SEPARATE_PV= yes

        PERMISSION= read/write

        LV_STATE= closed/syncd

        WRITE_VERIFY= off

        PP_SIZE= 64

        SCHED_POLICY= parallel

        PP= 4                  --> LPs 값과 동일하게 변경

        BB_POLICY= relocatable

        RELOCATABLE= yes

        UPPER_BOUND= 32

        LABEL=

        MAPFILE=

        LV_MIN_LPS= 2

        STRIPE_WIDTH=

        STRIPE_SIZE=

        SERIALIZE_IO= no

        FS_TAG=

        DEV_SUBTYP=

 

4. alt_disk_install 수행

#alt_disk_install -CB -i /image.data hdisk2