IBM TS7650G PROTECTIER DEDUPLICATION GATEWAY, User Manual, Page: 15 / 248

repository unique ID (RID)
A number that uniquely identifies the repository. The RID is created from
the replication grid ID and the repository internal ID in the grid.
replication timeframe
A scheduled period of time for replication to take place for all policies.
shelf A container of VTL cartridges within a ProtecTIER repository.
virtual tape library (VTL)
The ProtecTIER virtual tape library (VTL) service emulates traditional tape
libraries. By emulating tape libraries, ProtecTIER VTL allows you to switch
to disk backup without replacing your entire backup environment. Your
existing backup application can access virtual robots to move virtual
cartridges between virtual slots and drives. The backup application
perceives that the data is being stored on cartridges while ProtecTIER
actually stores data on a deduplicated disk repository.
visibility switching
The automated process that transfers the visibility of a VTL cartridge from
its master to its replica and vice versa. The visibility switching process is
triggered by moving a cartridge to the source library Import/Export (I/E)
slot. The cartridge will then disappear from the I/E slot and appear at the
destination library's I/E slot. To move the cartridge back to the source
library, the cartridge must be ejected to the shelf from the destination
library. The cartridge will then disappear from the destination library and
reappear at the source I/E slot.
ACL – Access Control List
A list of permissions attached to an object (file, directory, etc). An ACL
specifies which users are allowed to access an object and which operations
are allowed on the object.
AD – Windows Active Directory
Windows-based software that manages user and group authentication and
authorization between multiple servers.
Authentication
The process of presenting credentials (username/password) to a service
and having that service validate you.
Authorization
The process of granting access to resources on a server that is in the
network.
CIFS – Common Internet File System
The Microsoft file sharing protocol that supports remote mounts over
TCP/IP using the SAMBA server message block (SMB) protocol.
DNS – Domain name server
Used to lookup and translate host names and IP addresses.
FSI – File System Interface
This refers to the overall ProtecTIER File System Interface implementation.
When used in this document without any qualifiers it will refer to the
initial release supporting the CIFS interface.
Kerberos
A computer network authentication protocol that allows nodes
communicating over a non-secure network to prove their identity to one
another in a secure manner. When used in this document this term will
generally refer to the authentication protocol.
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