secondary volume
The volume in a copy pair that is the copy. The following Hitachi products use the term
"secondary volume": Device Manager - Storage Navigator, Thin Image, ShadowImage,
TrueCopy, and Universal Replicator.
See also primary volume.
service information message (SIM)
SIMs are generated by a RAID storage system when it detects an error or service
requirement. SIMs are reported to hosts and displayed on Device Manager - Storage
Navigator.
service processor (SVP)
The computer inside a RAID storage system that hosts the Device Manager - Storage
Navigator software and is used by service personnel for configuration and maintenance
of the storage system.
severity level
Applies to service information messages (SIMs) and Device Manager - Storage
Navigator error codes.
SI
Hitachi ShadowImage®
sidefile
An area of cache memory that is used to store updated data for later integration into
the copied data.
SIM
service information message
size
Generally refers to the storage capacity of a memory module or cache. Not usually used
for storage of data on disk or flash drives.
SM
shared memory
SMTP
simple mail transfer protocol
snapshot
A point-in-time virtual copy of a Thin Image primary volume (P-VOL). The snapshot is
maintained when the P-VOL is updated by storing pre-update data (snapshot data) in a
data pool.
SNMP
simple network management protocol
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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-19
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
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