[HP-UX] 13. Mirror Dsik (Itanium Ver)

* Itanium서버에서 root disk 미러 하기(HP-UX)
 - primary disk: c20t0d0
 - new mirror disk : c21t2d0

1. disk partition 설정 (idisk command사용)
  # vi /tmp/partitionfile 을 아래와 같이 만든다.
     3
     EFI 500MB
     HPUX 100%
     HPSP 400MB

  # idisk -w -p -f /tmp/partitionfile /dev/rdsk/c21t2d0
2. 새로운 partition을 위하여 새로운 device파일 생성
  # insf -e -Cdisk

3. EFI partition에 FAT 파일시스템을 초기화하기 위해 efi_fsinit 실행.
  # efi_fsinit -d /dev/rdsk/c21t2d0s1
    -> write an EFI file system header on a device file
    (Before any other EFI commands can be run, efi_fsinit must be run to initialize
     the file system on a device file.)
4. EFI partition을 format한후 확인.
  # mkboot -e -l /dev/rdsk/c21t2d0
    -> copy EFI utilities from /usr/lib/efi to the EFI partition on the disk
  # efi_ls -d /dev/rdsk/c21t2d0s1 
    -> EFI 확인 (List a root directory of device file c2t8d0s1
                 , which contains an EFI file system)
  # lifls -l /dev/rdsk/c21t2d0s2  
    -> LIF 확인 (list contents of a LIF directory in long format)

5. EFI partition에 있는 AUTO 파일 내용을 확인
  # efi_cp -d /dev/rdsk/c21t2d0s1 -u /EFI/HPUX/AUTO /tmp/x
  # cat /tmp/x
  # mkboot -a "boot vmunix -lq" /dev/rdsk/c21t2d0
  # mkboot -a "boot vmunix -lq" /dev/rdsk/c20t0d0

6. HP service partition복사(HPUX 11.23 only)
  # dd if=/dev/rdsk/c20t0d0s3 of=/dev/rdsk/c21t2d0s3 bs=1024k

7. File system을 mirror함.
   a) LVM을 사용할 경우
     # pvcreate -f -B /dev/rdsk/c21t2d0s2
     # vgextend vg00 /dev/dsk/c21t2d0s2
    
     # for i in lvol1 lvol2 lvol3   (lvol수만큼)
     > do lvextend -m 1 /dev/vg00/$i /dev/dsk/c2t8d0s2
     > done
     또는
     # for i in $(vgdisplay -v vg00 | grep "LV Name" | awk '{ print $3 }')
     > do lvextend -m 1 $i /dev/dsk/c21t2d0s2
     > done
     # lvlnboot -v
    (# lvlnboot -r /dev/vg00/lvol3)
    (# lvlnboot -b /dev/vg00/lvol1)
    (# lvlnboot -s /dev/vg00/lvol2)
    (# lvlnboot -d /dev/vg00/lvol2)

   b) VxVM을 사용할 경우
     # vxdctl enable
     # vxdisk list
     # /etc/vx/bin/vxrootmir -v c21t2d0s2
     # vxprint -g rootdg

8. 미러된 disk를 alternate bootpath로 구성.
  # setboot -a <alt hw_path>
  # setboot -h <ha alt hw_path>

9. 미러된 disk로 booting이 되는지 확인한다.