HP XP7 Storage - Manual (Page 242)

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 Universal Storage Platform V/VM series, Virtual Storage
Platform series and VSP G1000 series 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.
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Glossary-6
Hitachi Dynamic Link Manager (for VMware®) User Guide