HP XP Array Manager Software - Manual (Page 232)

properties file A file that defines aspects of the operating environment. The operating
environment can be modified by changing the appropriate properties file.
RACF (Resource
Access Control
Function) Functionality for controlling user authentication and resource access on the
mainframe host.
RADIUS Remote Authentication Dial In User Service
RAID redundant array of independent disks
A collection of two or more disk drives that presents the image of a single logical
disk drive to the system. Part of the physical storage capacity is used to store
redundant information about user data stored on the remainder of the storage
capacity. In the event of a single device failure, the data can be read or
regenerated from the other disk drives.
RAID employs the technique of disk striping, which involves partitioning each
drive's storage space into units ranging from a sector (512 bytes) up to several
megabytes. The stripes of all the disks are interleaved and addressed in order.
RAID level The type of RAID implementation. RAID levels include RAID 0, RAID 1, RAID 2,
RAID 3, RAID 4, RAID 5 and RAID 6.
refresh To update the database using the most recent information.
resource group Resources grouped by storage system, parity group, LDEV ID, storage port, etc.
role Operation(s) permission that users in a user group have for resources in a resource
group.
SAN storage area network. A network of shared storage devices that contain disks
for storing data.
SAS (Serial
Attached SCSI) A replacement for Fibre Channel drives in high performance applications. See
SCSI.
SATA Serial Advanced Technology Attachment. A computer bus technology primarily
designed for the transfer of data to and from hard disks and optical drives. SATA
is the evolution of the legacy Advanced Technology Attachment (ATA) interface
from a parallel bus to serial connection architecture.
SCSI (Small
Computer System
Interface) Standards that define I/O buses primarily intended for connecting storage systems
and devices to hosts through host bus adapters.
secondary volume After a backup, the volume in a copy pair that is the copy of the original data
on the primary volume (P-VOL). Recurring differential data updates keep the data
in the S-VOL consistent with the data in the P-VOL.
Secure Sockets
Layer (SSL) A common protocol for managing the security of message transmission over the
Internet.
Two SSL-enabled peers use their private and public keys to establish a secure
communication session, with each peer encrypting transmitted data with a
randomly generated and agreed-upon symmetric key.
SLPR Storage Local Partition
Smart Tiers (Smart) In addition to Thin Provisioning functionality, this functionality places data on a
tier according to the I/O load. A data area that has a high I/O load is placed
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