HP Storage Essentials V5.1 User Guide Second Edition (Linux Release) (T4283-96056, November 2006)

Storage Essentials 5.1 User Guide 363
The following table provides an overview of the required steps for setting up storage partitioning.
Table 54 Setting Up Storage Partitioning
Step Description Where to Find
1 (Engenio, CLARiiON, Sun 6130 and Sun 35xx)
Create a storage pool. Sometimes referred to as
a volume group or RAID group.
A storage pool is a group of disks associated
together through a RAID configuration. The
pool’s capabilities define the level of protection
for the associated volumes and LUNs.
EMC Symmetrix and HDS storage systems have
storage pools that are predefined. Engenio and
CLARiiON storage systems require a storage
pool to be created and volumes to be allocated
from a storage pool.
”Creating a Storage Pool (Engenio,
CLARiiON, Sun 6130 and Sun 35xx)”
on page 365
2 Create a volume.
A volume is a virtual disk. Volumes are created in
sizes that are desirable for being shown as a
LUN.
On CLARiiON storage systems, a volume is
owned by one of the storage processors.
Creating a volume also creates a LUN for this
volume and each port of the storage processor
that owns this volume. A volume can be
associated with more than one fibre channel
port, creating multiple LUNs corresponding to the
same volume. The defining characteristics of a
LUN are the volume, port, and LUN number. On
CLARiiON storage systems, a LUN mapped to a
port is visible to all the ports on that controller.
Mapping a volume to a port on a CLARiiON
storage system also maps that volume to all ports
that reside on the same storage processor as the
selected port. It also causes the volume to be
unmapped from all the ports of the other storage
processor.
Some storage systems have their volumes fully
configured during install. For these storage
systems, Users can concatenate multiple volumes
together to create a new volume.
”Creating a Storage Volume” on
page 370