Dell PowerVault MD1220 Manuale tecnico - Pagina 16
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5.6 Power Indicator Codes
Item
Indicator, Button, or
Connector
1
DC Power
2
Power supply/cooling fan
fault
3
AC Power
5.7 Solution Configurations
The PowerVault™ MD1200 and MD1220 enclosures can be cabled in either a unified-mode
configuration or in a split-mode configuration.
• In a unified-mode configuration the enclosure is connected to one host, for example, a server with a
controller card. The enclosure can be one of up to four enclosures daisy-chained to a single port on the
controller card in the host server. The enclosure can also be connected in a redundant path mode with
two connections to single host server. Redundant path is recommended since it provides cable
redundancy and better performance with automatic I/O load balancing. See Figure 9 and
Figure 10 for cabling diagrams of unified mode configurations.
** Available in Q3 2010
Figure 8.
Power Indicator Codes
Table 10.
Power Indicator Description
POWER INDICATOR AND FETAURE DESCRIPTION
Icon
The LED lights green when the DC output voltage is within the
limit.
If this LED is off, it indicates that the DC output voltages are not
within the limit.
The LED lights amber when the DC output voltage is not within
the limit or a fault with the fan is detected. If this LED is off, it
indicates that no fault condition is present.
The LED lights green when the AC input voltage is within the
limit.
If this LED is off, it indicates either there is no power or the AC
input voltage is not within the limit.
Description
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