Hitachi XP P9500 User Manual page 629

R
reservation
The reservation function enables a host to declare that it has exclusive rights to use a
particular LU, and prevents other hosts from accessing that LU. Access permission for
an LU that has been reserved is given only to the host that issued the reservation, so
the LU cannot be accessed from multiple paths (coming from multiple hosts)
simultaneously. However, because of this, load balancing is not possible.
(See also: persistent reservation)
S
SAN (Storage Area Network)
A high-speed network connecting hosts to storage systems. This network is independent
of a LAN and is dedicated to data transfers. A SAN provides faster access to storage
systems, and prevents the transfer of high-volumes of data from deteriorating LAN
performance.
SCSI device
A SCSI disk device.
SLPR (Storage Logical Partition)
A function supported by Hitachi USP, Universal Storage Platform V/VM and Virtual
Storage Platform for logically splitting up a storage system. This function splits up the
resources, such as ports, CLPR, and volumes, in the storage system, so that the user
can manage each resource independently.
X
Xen
Software that provides a virtual environment in Linux.
# A B C D E F G H I J K
Hitachi Dynamic Link Manager User Guide (for Linux(R))
L M N O P Q R S T U V W
Glossary-7
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