Tenemos el filesystem raíz montado normalmente:
[root@solaris10]:/>df -k
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c1t0d0s0 75083863 46475285 27857740 63% /
Los discos con el sistema operativo y el que va a ser el mirror ya los detecta Veritas:
[root@solaris10]:/>vxdisk list
DEVICE TYPE DISK GROUP STATUS
c1t0d0s2 auto:sliced - - online
c1t1d0s2 auto:sliced - - online
[root@solaris10]:/>
Pero como este disco ya estaba encapsulado antes, tiene datos de Veritas que pueden causar problemas, por eso lo mejor es quitar el disco del control de Veritas y borrar las particiones, dejando solo las de sistema operativo (0, 1 y 2):
[root@solaris10]:/>vxdisk rm c1t0d0s2
[root@solaris10]:/>format c1t0d0s2
selecting c1t0d0s2
[disk formatted]
Warning: Current Disk has mounted partitions.
/dev/dsk/c1t0d0s0 is currently mounted on /. Please see umount(1M).
/dev/dsk/c1t0d0s1 is in use by dump. Please see dumpadm(1M).
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
!
quit
format> p
PARTITION MENU:
0 - change `0' partition
1 - change `1' partition
2 - change `2' partition
3 - change `3' partition
4 - change `4' partition
5 - change `5' partition
6 - change `6' partition
7 - change `7' partition
select - select a predefined table
modify - modify a predefined partition table
name - name the current table
print - display the current table
label - write partition map and label to the disk
!
quit
partition> p
Current partition table (original):
Total disk cylinders available: 14087 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 root wm 6595 - 14086 72.71GB (7492/0/0) 152477184
1 swap wu 2 - 6594 63.98GB (6593/0/0) 134180736
2 backup wm 0 - 14086 136.71GB (14087/0/0) 286698624
3 - wu 2 - 14086 136.69GB (14085/0/0) 286657920
4 - wu 0 - 1 19.88MB (2/0/0) 40704
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
partition> 3
Part Tag Flag Cylinders Size Blocks
3 unassigned wu 2 - 14086 136.69GB (14085/0/0) 286657920
Enter partition id tag[unassigned]:
Enter partition permission flags[wu]:
Enter new starting cyl[2]: 0
Enter partition size[286657920b, 14085c, 14084e, 139969.69mb, 136.69gb]: 0
partition> p
Current partition table (unnamed):
Total disk cylinders available: 14087 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 root wm 6595 - 14086 72.71GB (7492/0/0) 152477184
1 swap wu 2 - 6594 63.98GB (6593/0/0) 134180736
2 backup wm 0 - 14086 136.71GB (14087/0/0) 286698624
3 unassigned wu 0 0 (0/0/0) 0
4 unassigned wu 0 - 1 19.88MB (2/0/0) 40704
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
partition> 4
Part Tag Flag Cylinders Size Blocks
4 unassigned wu 0 - 1 19.88MB (2/0/0) 40704
Enter partition id tag[unassigned]:
Enter partition permission flags[wu]:
Enter new starting cyl[0]: 0
Enter partition size[40704b, 2c, 1e, 19.88mb, 0.02gb]: 0
partition> p
Current partition table (unnamed):
Total disk cylinders available: 14087 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 root wm 6595 - 14086 72.71GB (7492/0/0) 152477184
1 swap wu 2 - 6594 63.98GB (6593/0/0) 134180736
2 backup wm 0 - 14086 136.71GB (14087/0/0) 286698624
3 unassigned wu 0 0 (0/0/0) 0
4 unassigned wu 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
partition> l
Ready to label disk, continue? y
partition> q
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
!
quit
format> q
[root@solaris10]:/>
Ahora se hace que Veritas vuelva a escanear el disco y lo tome en control, y con vxdiskadm se crea el diskgroup rootdg indicando que c1t0d0 será el integrante. Al final solicita un reincio:
[root@solaris10]:/>vxdctl enable
[root@solaris10]:/>vxdiskadm
Volume Manager Support Operations
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
21 Get the newly connected/zoned disks in VxVM view
22 Change/Display the default disk layouts
23 Mark a disk as allocator-reserved for a disk group
24 Turn off the allocator-reserved flag on a disk
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
Menu: VolumeManager/Disk/Encapsulate
Use this operation to convert one or more disks to use the Volume Manager.
This adds the disks to a disk group and replaces existing partitions
with volumes. Disk encapsulation requires a reboot for the changes
to take effect.
More than one disk or pattern may be entered at the prompt. Here are
some disk selection examples:
all: all disks
c3 c4t2: all disks on both controller 3 and controller 4, target 2
c3t4d2: a single disk (in the c#t#d# naming scheme)
xyz_0 : a single disk (in the enclosure based naming scheme)
xyz_ : all disks on the enclosure whose name is xyz
Select disk devices to encapsulate:
[
Here is the disk selected. Output format: [Device_Name]
c1t0d0
Continue operation? [y,n,q,?] (default: y) y
You can choose to add this disk to an existing disk group or to
a new disk group. To create a new disk group, select a disk group
name that does not yet exist.
Which disk group [
There is no active disk group named rootdg.
Create a new group named rootdg? [y,n,q,?] (default: y) y
Use a default disk name for the disk? [y,n,q,?] (default: y) y
A new disk group will be created named rootdg and the selected
disks will be encapsulated and added to this disk group with
default disk names.
c1t0d0
Continue with operation? [y,n,q,?] (default: y) y
The following disk has been selected for encapsulation.
Output format: [Device_Name]
c1t0d0
Continue with encapsulation? [y,n,q,?] (default: y) y
A new disk group rootdg will be created and the disk device c1t0d0 will
be encapsulated and added to the disk group with the disk name rootdg01.
Enter desired private region length
[
The c1t0d0 disk has been configured for encapsulation.
The first stage of encapsulation has completed successfully. You
should now reboot your system at the earliest possible opportunity.
The encapsulation will require two or three reboots which will happen
automatically after the next reboot. To reboot execute the command:
shutdown -g0 -y -i6
This will update the /etc/vfstab file so that volume devices are
used to mount the file systems on this disk device. You will need
to update any other references such as backup scripts, databases,
or manually created swap devices.
Encapsulate other disks? [y,n,q,?] (default: n) n
Volume Manager Support Operations
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
21 Get the newly connected/zoned disks in VxVM view
22 Change/Display the default disk layouts
23 Mark a disk as allocator-reserved for a disk group
24 Turn off the allocator-reserved flag on a disk
list List disk information
? Display help about menu
?? Display help about the menuing system
q Exit from menus
Select an operation to perform: q
Goodbye.
[root@solaris10]:/>shutdown -g0 -y -i6
Al subir la máquina comprobamos que ya existe un diskgroup rootdg cuyo integrante es el disco del sistema operativo:
[root@solaris10]:/>vxdisk list
DEVICE TYPE DISK GROUP STATUS
c1t0d0s2 auto:sliced rootdg01 rootdg online
c1t1d0s2 auto:sliced - - online
[root@solaris10]:/>
Ahora se quita del control de Veritas el disco que va a ser el mirror, se borran todas las particiones y se vuelve a adicionar al control de Veritas, debe aparecer entonces como "online" e "invalid":
[root@solaris10]:/>vxdctl enable
[root@solaris10]:/>vxdisk list
DEVICE TYPE DISK GROUP STATUS
c1t0d0s2 auto:sliced rootdg01 rootdg online
c1t1d0s2 auto:none - - online invalid
[root@solaris10]:/>
Inicializo el disco de mirror, y lo adiciono al diskgroup rootdg colocándole el nombre rootmirror:
[root@solaris10]:/>/usr/lib/vxvm/bin/vxdisksetup -i c1t1d0
[root@solaris10]:/>vxdg -g rootdg adddisk rootmirror=c1t1d0
[root@solaris10]:/>vxprint -g rootdg -ht
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
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
CO NAME CACHEVOL KSTATE STATE
VT NAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO 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
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg rootdg default default 68000 1258130530.176.solaris10
dm rootdg01 c1t0d0s2 auto 40703 286657920 -
dm rootmirror c1t1d0s2 auto 2048 286696320 -
v rootvol - ENABLED ACTIVE 152477184 ROUND - root
pl rootvol-01 rootvol ENABLED ACTIVE 152477184 CONCAT - RW
sd rootdg01-01 rootvol-01 rootdg01 134180736 152477184 0 c1t0d0 ENA
v swapvol - ENABLED ACTIVE 134180736 ROUND - gen
pl swapvol-01 swapvol ENABLED ACTIVE 134180736 CONCAT - RW
sd rootdg01-02 swapvol-01 rootdg01 0 134180736 0 c1t0d0 ENA
[root@solaris10]:/>
Ahora con vxdiskadm le digo que haga mirror al disco recien adicionado:
[root@solaris10]:/>vxdiskadm
Volume Manager Support Operations
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
21 Get the newly connected/zoned disks in VxVM view
22 Change/Display the default disk layouts
23 Mark a disk as allocator-reserved for a disk group
24 Turn off the allocator-reserved flag on a disk
list List disk information
? Display help about menu
?? Display help about the menuing system
q Exit from menus
Select an operation to perform: 6
Mirror volumes on a disk
Menu: VolumeManager/Disk/Mirror
This operation can be used to mirror volumes on a disk. These
volumes can be be mirrored onto another disk or onto any
available disk space. Volumes will not be mirrored if they are
already mirrored. Also, volumes that are comprised of more than
one subdisk will not be mirrored.
Mirroring volumes from the boot disk will produce a disk that
can be used as an alternate boot disk.
At the prompt below, supply the name of the disk containing the
volumes to be mirrored.
Enter disk name [
Disk group: rootdg
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
dm rootdg01 c1t0d0s2 auto 40703 286657920 -
dm rootmirror c1t1d0s2 auto 2048 286696320 -
Enter disk name [
You can choose to mirror volumes from disk rootdg01 onto any
available disk space, or you can choose to mirror onto a specific
disk. To mirror to a specific disk, select the name of that disk.
To mirror to any available disk space, select "any".
Enter destination disk [
The requested operation is to mirror all volumes on disk rootdg01
in disk group rootdg onto available disk space on disk rootmirror.
VxVM NOTICE V-5-2-3650 This operation can take a long time to complete.
Continue with operation? [y,n,q,?] (default: y) y
VxVM vxmirror INFO V-5-2-22 Mirror volume swapvol ...
VxVM vxmirror INFO V-5-2-22 Mirror volume rootvol ...
VxVM INFO V-5-2-674 Mirroring of disk rootdg01 is complete.
Mirror volumes on another disk? [y,n,q,?] (default: n) n
Volume Manager Support Operations
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
21 Get the newly connected/zoned disks in VxVM view
22 Change/Display the default disk layouts
23 Mark a disk as allocator-reserved for a disk group
24 Turn off the allocator-reserved flag on a disk
list List disk information
? Display help about menu
?? Display help about the menuing system
q Exit from menus
Select an operation to perform: q
Goodbye.
[root@solaris10]:/>
Verifico que en segundo plano se esté llevando a cabo el mirror:
[root@solaris10]:/>vxtask list
TASKID PTID TYPE/STATE PCT PROGRESS
161 ATCOPY/R 28.90% 0/134180736/38772736 PLXATT swapvol swapvol-02 rootdg
[root@solaris10]:/>vxtask list
TASKID PTID TYPE/STATE PCT PROGRESS
170 ATCOPY/R 01.13% 0/152477184/1726464 PLXATT rootvol rootvol-02 rootdg
[root@solaris10]:/>
Y cuando termina compruebo que los mirrors fueron hechos:
[root@solaris10]:/>vxprint -g rootdg -ht
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
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
CO NAME CACHEVOL KSTATE STATE
VT NAME NVOLUME KSTATE STATE
V NAME RVG/VSET/CO 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
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
dg rootdg default default 68000 1258130530.176.solaris10
dm rootdg01 c1t0d0s2 auto 40703 286657920 -
dm rootmirror c1t1d0s2 auto 40703 286657920 -
v rootvol - ENABLED ACTIVE 152477184 ROUND - root
pl rootvol-01 rootvol ENABLED ACTIVE 152477184 CONCAT - RW
sd rootdg01-01 rootvol-01 rootdg01 134180736 152477184 0 c1t0d0 ENA
pl rootvol-02 rootvol ENABLED ACTIVE 152477184 CONCAT - RW
sd rootmirror-02 rootvol-02 rootmirror 134180736 152477184 0 c1t1d0 ENA
v swapvol - ENABLED ACTIVE 134180736 ROUND - gen
pl swapvol-01 swapvol ENABLED ACTIVE 134180736 CONCAT - RW
sd rootdg01-02 swapvol-01 rootdg01 0 134180736 0 c1t0d0 ENA
pl swapvol-02 swapvol ENABLED ACTIVE 134180736 CONCAT - RW
sd rootmirror-01 swapvol-02 rootmirror 0 134180736 0 c1t1d0 ENA
[root@solaris10]:/>
Con esto el sistema operativo ya tiene alta dispobilidad por mirror a través de Veritas.
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