vxvmrootdisk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 aclearcase/" target="_blank" >ccess 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。

原文转自：http://www.ltesting.net