HP Storage Essentials V5.00.01 user guide (T4283-96012, January 2006)

Storage Essentials 5.00.01 User Guide 319
Modifying the Cache Settings (Engenio and Sun 6130)
IMPORTANT: Depending on your license, Provisioning Manager may not be available. See the
“List of Features” to determine if you have access to Provisioning Manager. The “List of Features” is
accessible from the Documentation Center (Help > Documentation Center in Storage Essentials).
To modify the cache settings:
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 324
3 Create a Host Security Group. Host Security
Groups define which initiators (HBA ports)
have access to specified storage volumes. They
are associated with a fibre-channel port and
contain a list of HBA port initiators and the
volumes they can see.
”Creating Host Security Groups” on
page 334 and ”Rules for Creating
Host Security Groups” on page 329
Table 49 Setting Up Storage Partitioning (continued)
Step Description Where to Find