DELL MD3220 사용자 설명서
Planning: RAID Controller Modules
33
Storage Array Thermal Shutdown
The system automatically shuts down when system temperature exceeds the
safe threshold. The battery backup unit protects against data loss by
providing power to offload cache to non-volatile memory in the event of
power loss. It is not necessary to shut down any MD1200 Series expansion
enclosures attached to the storage array when thermal shutdown occurs.
Temperature threshold values determine the temperature at which shutdown
Temperature threshold values determine the temperature at which shutdown
occurs. These thresholds cannot be changed.
System Password Reset
The storage array password can be reset if it is forgotten. To reset the
password, push and hold down the password reset switch for at least 5
seconds. The password is deleted. See Figure 3-1 to locate the password reset
switch.
The RAID controller module allows you to change the password. For more
The RAID controller module allows you to change the password. For more
about setting your password, see "Setting a Password" on page 69.
NOTE:
The reset switch can be accessed by using a small object such as the tip of
a pen.
Table 3-1. Shutdown Threshold Type
Threshold Temperature Exceeding Event Description
Nominal failure threshold
Nominal failure threshold
A critical event is set
Maximum failure threshold
Shutdown of the system power supplies occurs
within three minutes
Shutdown threshold
Shutdown of the system power supplies occurs
within five seconds
book.book Page 33 Monday, June 21, 2010 11:00 AM