11
Introduction
1
The main differences between Data Domain systems are the throughput and the amount of data
storage capacity. Data Domain Gateway systems store data on external disk arrays through a Fibre
Channel connection.
Data Domain System Types
Data Domain systems have model numbers. The gateway version of a Data Domain system has the
same model number as the non-gateway version, but with the suffix g.
Data Domain Systems belong to one of the following sets. Every model in each set uses the same
motherboard and chassis. Installation, interface locations, and PCI slots are different for each set.
•
DD120
•
DD580, DD580g, DD565, DD530, DD510
•
DD560, DD560g, DD460, DD460g, DD430, DD410
Note
For information about more recent Data Domain system models, refer to the model-specific
Installation and Setup Guide
and
Hardware Overview
documents. Visit
to see the latest documentation.
For information about the Data Domain ES20 expansion shelf, see the separate document, Data
Domain
Expansion Shelf Hardware Guide
.
Table 1 on page 12 lists the capacities of the Data Domain systems. Data Domain system internal
indexes and other product components use variable amounts of storage, depending on the type of
data and the sizes of files. If you send different data sets to otherwise identical systems, one system
may, over time, have room for more or less actual backup data than another.
Note
Data Domain system commands compute and display amounts of disk space or data as
decimal multiples of certain powers of two (2
10
, 2
20
, 2
30
, and so forth). For example, 7 GiB
of disk space = 7 x 2
30
bytes = 7 x 1,073,741,824 bytes. Data Domain refers to this process
as
base 2 calculation.
Содержание DD580
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