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Measures reported by HBladeServerLEDTest
The Hitachi Compute Blade allows accommodating upto eight dual-socket-based blade servers in the chassis. Critical or fatal physical damages, power failures or network connectivity failures can render the blade servers unavailable/inoperable. In environments where all the eight blade servers are accommodated in the chassis, if a single blade server fails or is critically damaged, then administrators may not be able to figure out the exact blade server that is problematic at a singe glance. To avoid such identification problems, each blade server is provided with the following LEDs:
Power LED and Alarm LED - visually indicate administrators to various power state changes and alarms generated in each blade server. Attention LED - automatically turns on when the power button with LED was pressed explicitly. The attention automatically turns off when the main power is turned off. Location identify LED - helps administrators in identifying the blade server.
If the LEDs fail or if the LEDs are damaged, then, administrators may be deprived of identifying the problematic blade server at a single glance. To avoid this issue, faulty LEDs should be identified and replaced immediately. The Hitachi Blades Servers LED test helps administrators to constantly keep a constant vigil on the status of the LEDs and the color of the LEDs.
This test auto-discovers the LEDs of each blade server and reports the current status of each LED and the color of the LED on each blade server. This way, administrators can be alerted to faulty LEDs and replace them at the earliest!
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Led_Status |
Indicates the current status of this LED. |
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The values that this measure can report and the numeric values they indicate have been listed in the table below:
| State |
Numeric Value |
| Turn Off |
1 |
| Turn On |
2 |
| Unknown |
3 |
| Blink |
4 |
| Blink Fast |
5 |
| Blink Slow |
6 |
Note:
By default, this measure can report the Measure Values mentioned above while indicating the current status of this LED in the blade server. However, the graph of this measure is indicated using the numeric equivalents.
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| Led_color |
Indicates the current color emitted by this LED. |
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The values that this measure can report and the color they emit have been listed in the table below:
| Color |
Numeric Value |
| Blue |
1 |
| Green |
2 |
| Red |
3 |
| Amber |
4 |
| Unknown |
0 |
Note:
By default, this measure can report the Measure Values mentioned above while indicating the current color of this LED in the blade server. However, the graph of this measure is indicated using the numeric equivalents.
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