Raid Group; Raid Level; Remote Site - Hitachi G200 User Manual

R
R/W, r/w
read/write
RAID
redundant array of inexpensive disks

RAID group

A redundant array of inexpensive drives (RAID) that have the same capacity and are
treated as one group for data storage and recovery. A RAID group contains both user
data and parity information, which allows the user data to be accessed in the event that
one or more of the drives within the RAID group are not available. The RAID level of a
RAID group determines the number of data drives and parity drives and how the data is
"striped" across the drives. For RAID1, user data is duplicated within the RAID group, so
there is no parity data for RAID1 RAID groups.
A RAID group can also be called an array group or a parity group.

RAID level

The type of RAID implementation. RAID levels include RAID0, RAID1, RAID2, RAID3,
RAID4, RAID5 and RAID6.
RCP
remote control port
remote control port (RCP)
A serial-channel (ESCON) port on a TrueCopy main control unit (MCU) that is configured
to send remote I/Os to a TrueCopy remote control unit (RCU).
remote copy connections
The physical paths that connect a storage system at the primary site to a storage
system at the secondary site. Also called data path.
remote replication
Data replication configuration in which the storage system that contains the original
data is at a local site and the storage system that contains the copy of the original data
is at a remote site. TrueCopy and Universal Replicator provide remote replication. See
also in-system replication.

remote site

See secondary site.
remote storage system
The system containing the copy in the remote location of a remote replication pair.
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Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
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