Quantum DX100, Руководство пользователя

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Chapter 1 DX-Series System Description
Typical Configurations
Quantum DX-Series User’s Guide 15
Figure 8 RAID 5 Configuration
Drive 0 Drive 1 Drive 2 Drive 3 Drive 4
A0 A1 A2 A3
1 parity
B0 B1 B2
2 parity
B4
C0 C1 3 parity C3 C4
D0
4 parity
D2 D3 D4
0 parity
E1 E2 E3 E4
Data stripe
Data stripe A
Data stripe B
Data stripe C
Data stripe D
Data stripe E
Typical Configurations
1
The DX-Series system has many advantages over typical tape cartridge
based systems such as faster data transfer, instant availability, and
greater reliability. You can add storage arrays to the system to increase
storage capacity.
To take advantage of the DX-Series systems speed and reliability and still
have the safety of off-site storage, Quantum recommends exporting the
data from the DX-Series system to an automated tape library (see
figure 9 ). This configuration still allows fast backup and restores as well
as the saftey of off-site backups on tape cartridges. Storage management
software applications often refer to this operation as “cloning” or
“vaulting.” Check with your software supplier for information on
enabling this feature.