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vxvm rootdisk 的封装和解除封装


  环境:ultra1 2块硬盘
  已经配置rootdg内包含一个slice c0t0d0s5
  系统盘上的slice 5 6 7 各有100m空间 其余空间都给了/ 和swap 试验内容为将根盘封装,然后景象。试验景象盘能够引导系统,最后解除景象和封装。
  Rootdisk encapsulate
  1.add new disk slice at rootdg
  root@sunlab # vxdctl add disk c0t1d0s5 type=simple
  vxvm:vxdctl: WARNING: Device c0t1d0s5: Not currently in the configuration
  root@sunlab # vxdisk -f init c0t1d0s5 type=simple
  root@sunlab # vxdg adddisk c0t1d0s5
  root@sunlab # vxdctl enable
  vxdisk list
  
  DEVICE TYPE DISK GROUP STATUS
  c0t0d0s2 sliced - - error
  c0t0d0s5 simple c0t0d0s5 rootdg online
  c0t1d0s2 sliced - - error
  c0t1d0s5 simple c0t1d0s5 rootdg online
  2.remove rootdisk slice at rootdg
  root@sunlab # vxdctl rm disk c0t0d0s5
  root@sunlab # vxdg -g rootdg rmdisk c0t0d0s5
  root@sunlab # vxdisk rm c0t0d0s5
  root@sunlab # vxdisk list
  DEVICE TYPE DISK GROUP STATUS
  c0t0d0s2 sliced - - error
  c0t1d0s2 sliced - - error
  c0t1d0s5 simple c0t1d0s5 rootdg online
  root@sunlab # vxdiskadm
  Menu: VolumeManager/Disk
  1 Add or initialize one or more disks
  2 Encapsulate one or more disks
  3 Remove a disk
  4 Remove a disk for replacement
  5 Replace a failed or removed disk
  6 Mirror volumes on a disk
  7 Move volumes from a disk
  8 Enable access to (import) a disk group
  9 Remove access to (deport) a disk group
  10 Enable (online) a disk device
  11 Disable (offline) a disk device
  12 Mark a disk as a spare for a disk group
  13 Turn off the spare flag on a disk
  14 Unrelocate subdisks back to a disk
  15 Exclude a disk from hot-relocation use
  16 Make a disk available for hot-relocation use
  17 Prevent multipathing/Suppress devices from VxVM's view
  18 Allow multipathing/Unsuppress devices from VxVM's view
  19 List currently suppressed/non-multipathed devices
  20 Change the disk naming scheme
  Hit RETURN to continue.
  21 Get the newly connected/zoned disks in VxVM view
  list List disk information
  ? Display help about menu
  
  ?? Display help about the menuing system
  
  q Exit from menus
  Select an operation to perform: 2
  Encapsulate one or more disks
  
  root@sunlab # vxdisk list
  DEVICE TYPE DISK GROUP STATUS
  c0t0d0s2 sliced rootdisk rootdg online
  c0t1d0s2 sliced - - error
  c0t1d0s5 simple c0t1d0s5 rootdg online
  3.remove disk slice from rootdg
  root@sunlab # vxdctl rm disk c0t1d0s5
  root@sunlab # vxdg -g rootdg rmdisk c0t1d0s5
  root@sunlab # vxdisk rm c0t1d0s5
  root@sunlab # vxdisk list
  DEVICE TYPE DISK GROUP STATUS
  c0t0d0s2 sliced rootdisk rootdg online
  c0t1d0s2 sliced - - error
  4.mirror rootdisk
  root@sunlab #vxdisksetup –i c0t1d0s2
  root@sunlab #vxdg –g rootdg adddisk c0t1d0
  root@sunlab # vxdiskadm --select option 6
  root@sunlab #vxtask list --wait for the process finish
  root@sunlab # vxdisk list
  DEVICE TYPE DISK GROUP STATUS
  c0t0d0s2 sliced rootdisk rootdg online
  c0t1d0s2 sliced c0t1d0 rootdg online
  root@sunlab # more /etc/vfstab
  #device device mount FS fsck mount mount
  #to mount to fsck point type pass at boot options
  #
  #/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr ufs 1 yes -
  fd - /dev/fd fd - no -
  /proc - /proc proc - no -
  /dev/vx/dsk/swapvol - - swap - no -
  /dev/vx/dsk/rootvol /dev/vx/rdsk/rootvol / ufs 1 no -
  swap - /tmp tmpfs - yes -
  #NOTE: volume rootvol (/) encapsulated partition c0t0d0s0
  #NOTE: volume swapvol (swap) encapsulated partition c0t0d0s1
  root@sunlab # eeprom -- use-nvramrc devalias
  
  use-nvramrc?=true
  nvramrc=devalias vx-c0t1d0 /sbus@1f,0/espdma@e,8400000/esp@e,8800000/sd@1,0:a
  devalias vx-rootdisk /sbus@1f,0/espdma@e,8400000/esp@e,8800000/sd@0,0:a
  
  root@sunlab # prtconf -pv |grep boot --verify the boot disk
  boot-retained-page:
  bootargs: 00
  bootpath: '/sbus@1f,0/espdma@e,8400000/esp@e,8800000/sd@0,0:a'
  boot-command: 'boot'
  auto-boot?: 'false'
  watchdog-reboot?: 'false'
  boot-file:
  boot-device: 'vx-rootdisk'
  root@sunlab # init 0
  OK boot vx-c0t1d0
  root@sunlab # prtconf -pv |grep boot --verify the boot disk
  boot-retained-page:
  bootargs: 00
  bootpath: '/sbus@1f,0/espdma@e,8400000/esp@e,8800000/sd@1,0:a'
  6.unmirror rootdisk
  vxdg -g rootdg -k rmdisk c0t1d0
  root@sunlab # vxprint -htg rootdg
  DG NAME NCONFIG NLOG MINORS GROUP-ID
  DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
  RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
  RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
  V NAME RVG KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
  PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
  SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
  SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
  DC NAME PARENTVOL LOGVOL
  SP NAME SNAPVOL DCO
  
  dg rootdg default default 0 1075733857.1025.sunlab
  
  dm c0t1d0 - - - - REMOVED
  dm rootdisk c0t0d0s2 sliced 3039 4151120 -
  
  v rootdisk5vol - ENABLED ACTIVE 103360 ROUND - gen
  pl rootdisk5vol-01 rootdisk5vol ENABLED ACTIVE 103360 CONCAT - RW
  sd rootdisk-05 rootdisk5vol-01 rootdisk 3634319 103360 0 c0t0d0 ENA
  pl rootdisk5vol-02 rootdisk5vol DISABLED REMOVED 103360 CONCAT - RW
  sd c0t1d0-01 rootdisk5vol-02 c0t1d0 0 103360 0 - RMOV
  
  v rootdisk6vol - ENABLED ACTIVE 205200 ROUND - gen
  pl rootdisk6vol-01 rootdisk6vol ENABLED ACTIVE 205200 CONCAT - RW
  sd rootdisk-04 rootdisk6vol-01 rootdisk 3737679 205200 0 c0t0d0 ENA
  pl rootdisk6vol-02 rootdisk6vol DISABLED REMOVED 205200 CONCAT - RW
  sd c0t1d0-02 rootdisk6vol-02 c0t1d0 103360 205200 0 - RMOV
  
  v rootdisk7vol - ENABLED ACTIVE 205200 ROUND - gen
  pl rootdisk7vol-01 rootdisk7vol ENABLED ACTIVE 205200 CONCAT - RW
  sd rootdisk-03 rootdisk7vol-01 rootdisk 3942879 205200 0 c0t0d0 ENA
  pl rootdisk7vol-02 rootdisk7vol DISABLED REMOVED 205200 CONCAT - RW
  sd c0t1d0-03 rootdisk7vol-02 c0t1d0 308560 205200 0 - RMOV
  
  v rootvol - ENABLED ACTIVE 3336400 ROUND - root
  pl rootvol-01 rootvol ENABLED ACTIVE 3336400 CONCAT - RW
  sd rootdisk-B0 rootvol-01 rootdisk 4151119 1 0 c0t0d0 ENA
  sd rootdisk-02 rootvol-01 rootdisk 0 3336399 1 c0t0d0 ENA
  pl rootvol-02 rootvol DISABLED REMOVED 3336400 CONCAT - RW
  sd c0t1d0-04 rootvol-02 c0t1d0 513760 3336400 0 - RMOV
  
  v swapvol - ENABLED ACTIVE 297920 ROUND - swap
  pl swapvol-01 swapvol ENABLED ACTIVE 297920 CONCAT - RW
  sd rootdisk-01 swapvol-01 rootdisk 3336399 297920 0 c0t0d0 ENA
  pl swapvol-02 swapvol DISABLED REMOVED 297920 CONCAT - RW
  sd c0t1d0-05 swapvol-02 c0t1d0 3850160 297920 0 - RMOV
  root@sunlab # vxplex dis rootdisk6vol-02 rootdisk5vol-02 rootdisk7vol-02 rootvol-02 swapvol-02
  root@sunlab # vxedit -r rm rootdisk6vol-02 rootdisk5vol-02 rootdisk7vol-02 rootvol-02 swapvol-02
  root@sunlab # vxprint -htg rootdg
  DG NAME NCONFIG NLOG MINORS GROUP-ID
  DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
  RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
  RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
  V NAME RVG KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
  PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
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