vMemory sparing reserves memory capacity for failover in the event of a DIMM failure, and the reserved capacity is subtracted from the total available memory. Memory sparing provides less redundancy than memory mirroring does. If a predetermined threshold of correctable errors is reached, the contents of the failing DIMM are copied to the spare memory, and the failing DIMM or rank is disabled. To enable memory sparing through the Setup utility, select System Settings > Memory.
vIf a problem with a DIMM is detected, light path diagnostics lights the
The following illustration shows the LEDs on the memory card.
Light path | DIMM 1 | |
DIMM 2 | ||
diagnostics | ||
button | DIMM 3 | |
| ||
| DIMM 4 |
Light path | DIMM 5 | |
DIMM 6 | ||
diagnostics | ||
| ||
button | DIMM 7 | |
power LED | DIMM 8 | |
|
Memory card/DIMM error LED
Memory card only error LED
DIMM 1 error LED DIMM 2 error LED DIMM 3 error LED DIMM 4 error LED
DIMM 5 error LED DIMM 6 error LED DIMM 7 error LED DIMM 8 error LED
Memory card/DIMM error LED: When this LED is lit, it indicates that the memory card or a DIMM has failed.
Memory card only error LED: When this LED is lit, it indicates that the memory card has failed.
DIMM 1 - 8 error LED: When one of these LEDs is lit, it indicates that a DIMM has failed.
Light path diagnostics button power LED: When this LED is lit, it indicates that the capacitor has power and error LEDs can be lit as necessary.
Light path diagnostics button: Press this button to relight the error LED that had previously been lit.
