Compaq Infortrend manual Monitoring and Safety Mechanisms, Dynamic Switch Write-Policy, 9-25

9.3Monitoring and Safety Mechanisms

Dynamic Switch Write-Policy

Select “View and edit Configuration parameters” on the main menu and press [ENTER]. Choose “Caching Parameters,” then press [ENTER] again. The Caching Parameters menu displays.

To reduce the chance of data loss, Write-back caching can be disabled by the controller upon the following conditions:

1.Controller failure

2.BBU low or Failed

3.UPS AC Power Loss

4.Power supply Failure

5.Fan Failure

6.Temperature Exceeds Threshold

Note the thresholds on temperature refer to those set for RAID controller board temperature.

View Peripheral Device Status

Select “View and edit Peripheral Devices” on the main menu and press [ENTER]. Choose “View Peripheral Device Status,” then press [ENTER] again. The device list displays.

Below is a list of peripheral devices (enclosure modules) monitored by the RAID controller unit. Monitoring of device status depends on enclosure implementation and is accessed through different interfaces, e.g., SAF-TE, S.E.S., or I2C bus.

1.	Device Type
2.	Enclosure Descriptor
9-25	Infortrend