internal volume
A logical volume whose data resides on drives that are physically located
within the storage system. See also external volume.
J
JNL
journal
journal volume
A volume that records and stores a log of all events that take place in
another volume. In the event of a system crash, the journal volume logs
are used to restore lost data and maintain data integrity.
In Universal Replicator, differential data is held in journal volumes on until
it is copied to the S-VOL.
JRE
Java Runtime Environment
K
key management server
A server that manages encryption keys. Encryption keys can be backed
up to, and restored from, a key management server that complies with
the Key Management Interoperability Protocol (KMIP).
keypair
Two mathematically-related cryptographic keys: a private key and its
associated public key.
L
LBA
logical block address
LCP
local control port; link control processor
LD
local directory; logical device
394 Glossary
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
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