Sun Microsystems StorageTek 6140 Administration Manual page 71

Volume capacity
Identify the capacity of the volume in megabytes, gigabytes, or terabytes.
The storage pool for this volume
By default, the management software supplies a default storage pool. This pool
uses the default storage profile, which implements RAID-5 storage characteristics
that can be used in the most common storage environment. Other pools may have
also been configured. Before you run the New Volume wizard, check the list of
configured pools to see whether one of the pools has the storage characteristics
you want. If a suitable pool does not exist, create a new pool using an existing or
a new storage profile before you run the New Volume wizard.
The way a virtual disk is selected
A volume can be created on a virtual disk as long as the RAID level, the number
of disks, and the disk type (either FC or SATA) of the virtual disk matches the
storage profile associated with the volume's pool. The virtual disk must also have
enough capacity for the volume. You must choose the method of determining
which virtual disk will be used to create the volume. The following options are
available:
Automatic – The management software automatically searches for and selects a
virtual disk that matches the necessary criteria. If none are available, it creates
a new virtual disk if enough space is available.
Create Volume on an Existing Virtual Disk – You manually select the virtual
disks on which to create the volume from the list of all available virtual disks.
Be sure that the number of disks you select have enough capacity for the
volume.
Create a New Virtual Disk – You create a new virtual disk on which to create
the volume. Be sure that the number of disks you select have enough capacity
for the volume.
Whether you want to map the volume now or later.
You can add the volume to an existing storage domain, including the default
storage domain, or create a new one by mapping the volume to a host or host
group. A storage domain is a logical entity used to partition storage that allows a
host or host group to have read/write access to the volume. The default storage
domain contains all hosts and host groups without explicit mappings and enables
them to share access to all volumes that are not explicitly mapped. If you choose
to map the volume later, the management software automatically includes it in
the default storage domain.
Note: A host or host group will be available as a mapping option only if an
initiator is associated with each individual host and each host included in a host
group.
Chapter 4 Configuring Storage Volumes 55