HP XP Array Manager Software User Manual
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pool volume
(pool-VOL)
A logical volume that is reserved for storing Snapshot data or Thin Provisioning
write data.
primary volume
In a volume pair, the source volume that is copied to another volume using the
volume replication functionality of a storage system. The data on the P-VOL is
duplicated synchronously or asynchronously on the secondary volume (S-VOL).
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.
resource pool
A group of resources on a virtual storage machine that have not been added to
any individual resource group. Resource pools are of two types: those that are
on the virtual storage machine by default and those that are created automatically
when you create a separate virtual storage machine.
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.
Glossary
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