Memory sparing – Acer Altos R510 User Manual

Page 101

Memory Sparing

To provide a more fault tolerant system, the Altos R510 includes
specialized hardware to support fail-over to a spare DIMM device in
the event that a primary DIMM in use exceeds a specified threshold of
runtime errors. One of the DIMMs installed per channel will not be
used, but kept in reserve. In the event of significant failures in a
particular DIMM, it and its corresponding partner in the other channel
(if applicable), will, over time, have its data copied over to the spare
DIMM(s) held in reserve, When all the data has been copied, the
reserve DIMM(s) will be put into service and the failing DIMM will be
removed from service. Only one sparing cycle is supported. If this
feature is not enabled, then all DIMMs will be visible in normal address
space.

Please refer to the “Memory Configuration” section in “BIOS Setup” to
enable the memory sparing feature.

The table below lists the suggested memory population for memory
sparing.

DIMM

Total Memory

Physical

Memory

Detected

by OS

512MB

(spare)

512MB

(spare)

2GB

1GB

(spare)

1GB

(spare)

4GB

2GB

(spare)

2GB

(spare)

8GB

4GB

512MB

(spare)

512MB

(spare)

3GB

2GB