Example conditions to monitor
This section provides examples of conditions you can monitor. It is intended as an introduction and not as a comprehensive reference. These conditions have slightly different names, states, and values, depending on the tool you choose. For example, an SNMP MIB might have a different name than a
To properly monitor these conditions, you should become familiar with the tool you choose to implement and read the documentation for that tool.
The possible states and values of these conditions are:
•GREEN: Normal
•YELLOW: Caution/Alert
•RED: Error/Warning
You can implement your own ranges of acceptable states/values, especially if you use a
Device status
All of the monitoring tools return information on the status of the IO Accelerator devices, including the following states:
•GREEN: Attached
•YELLOW: Detached, Busy (including: Detaching, Attaching, Scanning, Formatting, and Updating)
•RED: Minimal Mode, Power loss Protect Disabled
If the device is in Minimal Mode, the monitoring tool can display the reason for the Minimal Mode status.
Required actions
If the device is in Minimal Mode, the action depends on the reason. For example, if the reason is outdated firmware, then you must update the firmware.
Temperature
IO Accelerator devices require adequate cooling. To prevent thermal damage, the IO Accelerator VSL starts throttling write performance after the
These temperatures depend on the device. Newer IO Accelerator devices have higher thermal tolerances. Consult the IO Accelerator hardware installation guide to determine the thermal tolerances of all devices you will monitor. This list uses the thermal tolerances for newer devices (93°C throttling, 100°C shutdown).
•GREEN: <93°C
•YELLOW:
•RED: 100°C
You can shift the conditions by a few degrees so the YELLOW condition exists before throttling occurs. For example:
•GREEN: <90°C
•YELLOW:
•RED: 97°C
Monitoring and managing devices 19