Locking The Cache - Adaptec DuraStor 7220SS User Manual

Table 5-2 Alarm Thresholds
Alarm Threshold
CPU temperature
Warning—0°C–5°C
and
65°C–70°C
Shutdown—0°C, 70°C,
<0°C, and >70°C
Onboard temperature
Warning—0°C–5°C
and
45°C–50°C
Shutdown—0°C, 50°C,
<0°C, and >50°C
VCC voltage
Warning—5V -3.5%
and +6.5%
Shutdown—5V -6.5%
and +10%
12V voltage
Warning—12V -8%
and +8%
Shutdown—12V -10%
and +10%

Locking the Cache

Some host OSs disable the write-back cache of the controller,
resulting in degraded performance. You can stop this from
happening by enabling the Cache Lock. (The default setting is
Disabled.)
To enable the cache lock:
1
From the System Menu, select Configuration Menu and press
Enter.
The Configuration menu appears.
What To Do When the Alarm Sounds
Check Adaptec Disk Array
I
Administrator to confirm what the alarm
means. See Chapter 3, Monitoring System
Status.
Check the ambient temperature and
I
lower it, if needed. Ambient temperature
should be less than 45°C.
Same as above for the CPU temperature.
I
Check Adaptec Disk Array
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Administrator to confirm what the alarm
means. See Chapter 3, Monitoring System
Status.
If it is a warning alarm, let the controller
I
continue to operate.
If it is a shutdown alarm, turn off the
I
power to the controller and send it for
service.
Same as above for the VCC voltage.
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Configuring the Controller
5-17