remote control unit (RCU)
A storage system at a secondary, or remote, site that is configured to
receive remote I/O instructions from one or more storage systems at the
primary, or main, site. See also main control unit.
remote site
See secondary site.
resync
resynchronize
RMI
Remote Method Invocation
root volume
A layer-1 primary volume in a ShadowImage cascade configuration. The
secondary volume of a layer-1 pair is called a node volume. See also
cascade configuration.
RTC
real-time clock
RTO
recovery time objective
S
S#
serial number
S-VOL
See secondary volume or source volume. When used for "secondary
volume", "S-VOL" is only seen in the earlier version of the Device
Manager - Storage Navigator GUI (still in use).
S/N
serial number
s/w
software
Glossary 313
Hitachi Thin Image User Guide for Hitachi Virtual Storage Platform G Series and F Series