Hitachi VSP G400 System Administration Guide

severity level
Applies to service information messages (SIMs) and Device Manager -
Storage Navigator error codes.
SFP
small form-factor pluggable
shared memory
Memory that exists logically in the cache. It stores common information
about the storage system and the cache management information
(directory). The storage system uses this information to control exclusions
and differential table information. Shared memory is managed in two
segments and is used when copy pairs are created.
In the event of a power failure, the shared memory is kept alive by the
cache memory batteries while the data is copied to the cache flash
memory (SSDs).
shredding
See volume shredding.
SIM
See 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 Hitachi Thin Image primary volume (P-
VOL). The snapshot is maintained when the P-VOL is updated by storing
pre-updated data (snapshot data) in a data pool.
SNMP
See Simple Network Management Protocol.
Glossary 401
System Administrator Guide for VSP Gx00 models and VSP Fx00 models

Hitachi VSP G400 Specifications

General

Brand	Hitachi
Model	VSP G400
Category	Storage
Language	English