Quantum DXi4510, User Manual

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Chapter 1: DXi4000 System Description
Hard Drive Storage
Quantum DXi4000 User’s Guide 9
Figure 1 DXi4000 System
Hard Drive Storage
The DXi4000 system is based upon high speed disk drives instead of
tape drives (see HDDs on page 9). The usable capacity is 2.2–11.61 TB.
The drive storage area is presented as NAS shares or OST LSUs (Logical
Storage Units) (see Network Attached Storage (NAS) on page 10 or
OpenStorage (OST) on page 12).
By making use of high speed drives, the DXi4000 greatly reduces the
time required for backup/restore functions and improves confidence in
completing the backup in the time allowed.
HDDs
To optimize performance, the DXi4000 uses hard disk drives (HDDs).
The DXi4000 supports eight hard disks (
Figure 2 and Figure 3 ):
• HDDs - High capacity (500 GB, 1 TB, or 2 TB) hard disk drives are
used for data storage, the operating system, and system software.