Solaris 11: adding additional Disk/LUN to a zone ONLINE

Documentation by: mgerdts

Solaris 11.2 allows you to modify your zone configuration and apply those changes without a reboot.  Check this out:
First, I want to show that there are no disk devices present in the zone.

root@vzl-212:~# zlogin z1 'find /dev/*dsk'

/dev/dsk

/dev/rdsk

Next, I modify the static zone configuration to add a access to all partitions of a particular disk.  This has no effect on the running zone.

root@vzl-212:~# zonecfg -z z1

zonecfg:z1> add device

zonecfg:z1:device> set match=/dev/*dsk/c0t600144F0DBF8AF19000052EC175B0004d0*

zonecfg:z1:device> end

zonecfg:z1> exit

I then use zoneadm to apply the changes in the zone configuration to the running zone.

root@vzl-212:~# zoneadm -z z1 apply

zone 'z1': Checking: Adding device match=/dev/*dsk/c0t600144F0DBF8AF19000052EC175B0004d0*

zone 'z1': Applying the changes

And now, the zone can see the devices.

root@vzl-212:~# zlogin z1 'find /dev/*dsk'

/dev/dsk

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s0

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s1

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s2

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s3

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s4

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s5

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s6

/dev/rdsk

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s0

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s1

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s2

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s3

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s4

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s5

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s6

If I wanted to just temporarily modify the configuration, there's an option to just modify the running configuration. For example, if I plan on doing some maintenance on my ZFS Storage Appliance that hosts the LUN I allocated above, I may want to be sure that the zone can't see it for a bit.  That's easy enough.
Here I use zonecfg's -r option to modify the running configuration.

root@vzl-212:~# zonecfg -z z1 -r

zonecfg:z1> info device

device:

    match: /dev/*dsk/c0t600144F0DBF8AF19000052EC175B0004d0*

    storage not specified

    allow-partition not specified

    allow-raw-io not specified

zonecfg:z1> remove device

zonecfg:z1> info device

zonecfg:z1> commit

zone 'z1': Checking: Removing device match=/dev/*dsk/c0t600144F0DBF8AF19000052EC175B0004d0*

zone 'z1': Applying the changes

zonecfg:z1> exit

Without the -r option, zonecfg displays the on-disk configuration.

root@vzl-212:~# zonecfg -z z1 info device

device:

    match: /dev/*dsk/c0t600144F0DBF8AF19000052EC175B0004d0*

    storage not specified

    allow-partition not specified

    allow-raw-io not specified

 

root@vzl-212:~# zonecfg -z z1 -r info device

root@vzl-212:~#

The running configuration reflects the contents of /dev/dsk and /dev/rdsk inside the zone.

root@vzl-212:~# zlogin z1 'find /dev/*dsk'

/dev/dsk

/dev/rdsk

When it is time to revert back to the on-disk configuration, simply apply the on-disk configuration and the device tree inside the zone reverts to the on-disk configuration.

root@vzl-212:~# zoneadm -z z1 apply

zone 'z1': Checking: Adding device match=/dev/*dsk/c0t600144F0DBF8AF19000052EC175B0004d0*

zone 'z1': Applying the changes

 

root@vzl-212:~# zlogin z1 'find /dev/*dsk'

/dev/dsk

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s0

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s1

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s2

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s3

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s4

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s5

/dev/dsk/c0t600144F0DBF8AF19000052EC175B0004d0s6

/dev/rdsk

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s0

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s1

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s2

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s3

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s4

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s5

/dev/rdsk/c0t600144F0DBF8AF19000052EC175B0004d0s6

Live Zone Reconfiguration is not limited to just device resources, it works with most other resources as well.  See the Live Zones Reconfiguration section in zones(5).