Description: Creating a zpool / Zones
Platform: SUN
Model: Server
Category: Install
Problem statement: Zpools and Zone Creation
RCA Summary: N.A
Solution: N.A
Work around: Find it Below
Creating a zpool
ZFS uses device names or partition names when dealing with pools and devices. For a device, this will be something like c1t0d0 (for a SCSI device) or c1d1 (for an IDE device). For a partition, it will be something like c1t0d0s0 (for a SCSI device)or c1d1s0 (for an IDE device). This example creates a pool that is mirrored using two disks.
1. To create a zpool in the global zone, use the zpool create command. Typically, you use two devices to provide redundancy.
Global# zpool create mypool mirror c2t5d0 c2t6d0
Note that the zpool create command may fail if the devices are in use or contain some types of existing data (e.g. UFS file system). If they are in use, you will need to unmount them or otherwise stop using them. If they contain existing data you can use the -f (force) flag to override the safety check, but be sure that you are not destroying any data you
want to retain.
2. Examine the pool properties using the zpool list command.
Global# zpool list
This shows you that there is one zpool, named mypool, with a capacity of 199GBytes.
Creating a Zone
To show ZFS working in an environment that is isolated from other applications on the system, you need to create a zone.
To create a zone:
1. Create a directory where the zone file system will reside, using the mkdir command. Be sure to chose a location where the file system has at least 80MBytes of available space.
Global# mkdir /zones
Note that in this example, for the sake of brevity, the root file system of the zone is a UFS file system.
2. Configure the zone (myzone), using the zonecfg command, and specify the location of the zone's files (/zones/myzone). Use the following series of commands.
Global# zonecfg -z myzone
myzone: No such zone configured
Use 'create' to begin configuring a new zone
zonecfg:myzone> create
zonecfg:myzone> set zonepath=/zones/myzone
zonecfg:myzone> verify
zonecfg:myzone> commit
zonecfg:myzone> exit
Again, for the purpose of streamlining, this example uses a very minimal zone. For more details on creating zones see the Solaris Containers How To Do Stuff guide at:
www.sun.com/software/solaris/howtoguides/containersLowRes.jsp
3. Install the zone by using the zoneadm.
Global# zoneadm -z myzone install
Preparing to install zone <myzone>
[Output from zoneadm, this may take a few mins]
4. Boot the zone to complete the installation, using the zoneadm command.
Global# zoneadm -z myzone boot
5. Use the zlogin command to connect to the zone console.
Global# zlogin -C myzone
[Connected to zone 'myzone' console]
[Initial zone boot output, service descriptions are loaded etc.]
It may take a short while for the first boot to configure everything, load all the service descriptors, and so on. You will
need to answer the system configuration details. Some suggestions are:
Terminal=(12)X Terminal Emulator (xterms)
Not Networked
No Kerberos
Name service = None
Time Zone = your-time-zone
root passwd = (Your choice – remember it though!)
The zone will reboot after you have provided the configuration information.
6. Before you can proceed to the next stage, the configured zone needs to be shutdown (configuration changes are only applied when the zone boots).
Global# zlogin myzone init 5
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