vxvm rootdisk 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
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

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

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

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

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

root@sunlab # vxedit rm c0t1d0
root@sunlab # vxdisk list
DEVICE TYPE DISK GROUP STATUS
c0t0d0s2 sliced rootdisk rootdg online
c0t1d0s2 sliced - - online
root@sunlab # vxdisk rm c0t1d0
root@sunlab # vxdisk list
DEVICE TYPE DISK GROUP STATUS
c0t0d0s2 sliced rootdisk rootdg online
root@sunlab # vxdctl enable
7.unencapsulate rootdisk
root@sunlab # vxunroot
8.remove the rootdisk from the vxvm control
root@sunlab #vxdiskadm 3

如果需要保持rootdg内还有一个slice，可以在解除根盘的封装前，添加一个slice c0t1d0s5 到rootdg.方法前面就有。这个试验包含的很多东西都可以单独使用。