HP XP P9500 Storage - Manual (Page 230)

SSID storage subsystem ID. SSIDs are used for reporting information from the CU to the mainframe
operating system. Each group of 64 or 256 volumes requires one SSID, so there are one or four
SSIDs per CU image. The user-specified SSIDs are assigned during storage system installation
and must be unique to all connected host operating environments.
SSL secure socket layer
storage cluster See cluster.
storage tiers See tiered storage.
SVP See Service Processor.
SVS Storage Virtualization System
syslog The file on the SVP that includes both syslog and audit log information, such as the date and
time.
system disk The volume from which an open-systems host boots.
system option
mode (SOM) Additional operational parameters for the RAID storage systems that enable the storage system
to be tailored to unique customer operating requirements. SOMs are set on the service processor.
V-VOL virtual volume
VDEV See virtual device (VDEV) .
view mode The mode of operation of Remote Web Console that allows viewing only of the storage system
configuration. The two Remote Web Console modes are view mode and modify mode.
virtual device
(VDEV) A group of logical devices (LDEVs) in a RAID group. A VDEV typically consists of some fixed
volumes (FVs) and some free space. The number of fixed volumes is determined by the RAID level
and device emulation type.
virtual volume
(V-VOL) The secondary volume in a Snapshot pair. When in PAIR status, the V-VOL is an up-to-date virtual
copy of the primary volume (P-VOL). When in SPLIT status, the V-VOL points to data in the P-VOL
and to replaced data in the pool, maintaining the point-in-time copy of the P-VOL at the time of
the split operation.
volume A logical device (LDEV), or a set of concatenated LDEVs in the case of LUSE, that has been defined
to one or more hosts as a single data storage unit. A mainframe volume is called a logical volume
image (LVI), and an open-systems volume is called a logical unit. (LU).
volume shredding Deleting the user data on a volume by overwriting all data in the volume with dummy data.
Web Console The computer inside a RAID storage system that hosts the Remote Web Console software and is
used by service personnel for configuration and maintenance of the storage system.
WWN worldwide name
XRC IBM Extended Remote Copy
230 Glossary