HP 3PAR T-Class Storage Systems User Manual

Page 468

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3PAR InForm Management Console 4.1.0 User’s Guide

468

320-200231 Rev A

promote: For physical copies: to break the association between a physical copy and a base

volume by changing the physical copy into an independent base volume. For virtual

copies: to copy the changes from a virtual copy back onto the base volume,
therefore overwriting the base volume with the virtual copy.

R

RAID 0 set: Striped rows of chunklets on two or more physical disks. A RAID 0 set offers

no data redundancy.

RAID 10 (RAID 1) set: A group of mirrored chunklets.
RAID 50 (RAID 5) set: A group of parity-protected chunklets. Also known as a parity set.
RAID set: A grouping of mirrored or parity-protected chunklets.
RCFC: Remote Copy over Fibre Channel. The use of 3PAR Remote Copy with two storage

servers that are connected via Fibre Channel ports. See also 3PAR Remote Copy.

RCIP: Remote Copy over IP. The use of 3PAR Remote Copy with two storage servers that

are connected via Ethernet ports. See also 3PAR Remote Copy.

registered state change notification (RSCN): A Fibre Channel switch function that

allows notification to registered nodes if a change occurs to other specified nodes.

Remote Copy links: The method by which information is sent and received between

Remote Copy targets.

Remote Copy pair: The pair of storage servers on which Remote Copy operations are

performed.

Remote Copy target: The description of a Remote Copy system on one server in the

Remote Copy pair. Each server in a Remote Copy pair must have a target definition

for the other server.

Remote Copy volume group: A group of virtual volumes that are logically related and for

which there is a cross-volume ordering or writes.

resynch, resynchronize: To copy changes from one volume in a physical copy pair to the

other because that volume was modified at some point after the physical copy

operation took place. See also physical copy.

row: A grouping of RAID sets. Data is striped across the rows of RAID 10 and RAID 50

logical disks.

row size: The number of sets in a row. A row is a grouping of RAID sets. Data is striped

across the rows of RAID 10 and RAID 50 logical disks.

RSCN: See registered state change notification.

S

SCSI reservation/registration: Allows multiple hosts to share a SCSI interface to access

exported volumes. Multiple hosts can have registrations to a single volume, but only

one host can have the reservation.

secondary volume group: In Remote Copy, the set of copied volumes on the storage

server.

set: See set size.

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