host mode option
Additional options for fibre-channel ports on RAID storage systems. Provide enhanced
functionality for host software and middleware.
HUR
Hitachi Universal Replicator
I
IMPL
initial microprogram load
initial copy
An initial copy operation is performed when a copy pair is created. Data on the primary
volume is copied to the secondary volume.
in-system replication
The original data volume and its copy are located in the same storage system.
ShadowImage in-system replication provides duplication of logical volumes; Thin Image
provides "snapshots" of logical volumes that are stored and managed as virtual volumes
(V-VOLs).
intermediate site (I-site)
A site that functions as both a TrueCopy secondary site and a Universal Replicator
primary site in a 3-data-center (3DC) cascading configuration.
internal volume
A logical volume whose data resides on drives that are physically located within the
storage system. See also external volume.
IO, I/O
input/output
I/O mode
I/O actions on the P-VOL and S-VOL of the global-active device pair.
IOPS
I/Os per second
J
JNL
journal
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Glossary-10
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
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