HP Hitachi Dynamic Link Manager Software - Manual (Page 645)

C. Glossary
623
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.
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)
The SLPR function enables logical splitting of a storage system supported by the
Hitachi USP, Universal Storage Platform V/VM and Virtual Storage Platform. 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.