vxvm rootdisk 封装和解除封装

weixin_38069095 2004-06-15 05:58:44

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。

...全文