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Chapter 7 Logical Volume Management
Logical Volumes are required for assigning mappings to Hosts. A Logical Volume
can be expanded or re-assigned to a different Host after it has been created.
A Logical Volume can be created either as a private volume or as a global volume.
Global Logical Volumes:
Global logical volumes can be mapped to user-specified ports. Once a global
volume is mapped to a port, all hosts that log into that port can access the logical
volume at the configured LUN for this port. Hosts that are not logged into a
mapped port will not be able to access the global volume.
Private Logical Volumes:
Private logical volumes can be mapped to user-specified ports AND hosts. Private
volumes can have a set of ports enabled, at which they can be accessible by
selected hosts only. Private volumes are only accessible by hosts that have been
mapped to that volume at a specified LUN. In addition, the host also needs to be
logged into a port that has been enabled for the private volume.
Hosts that are not mapped to a private volume will not be able to access the
private volume irrelevant of the login port.
Mapping hosts to volumes can be performed on the Logical Volume Functions
Host Mapping screen.
WARNING! Any file system on a mapped Logical Volume may be
lost if it is re-mapped to a different host.
The following functions are available with respect to Logical Volumes:
View - see the status of a Logical Volume
Create - create a new Logical Volume
Modify, Delete - modify, expand or delete Logical Volumes
Host Mapping - assign hosts to logical volumes
FIBRE-to-SAS/SATA RAID SUBSYSTEM
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