No. Description Definition
5 Maximum memory speed
l 2133 MT/s
l 2400 MT/s
l 2666 MT/s
6 CAS latency
l P: 15
l T: 17
7 DIMM type
l R: RDIMM
l L: LRDIMM
6.2.3.5 Memory Configuration
The G560 supports the following memory protection modes to increase its availability:
l Online spare memory: provides protection against failing or degraded DIMMs. Certain
memory is reserved as spare, and automatic failover to spare memory occurs when the
system detects a DIMM that is degrading. This prevents the system from running on
DIMMs prone to uncorrectable errors, which will cause system breakdown.
l Mirrored memory: provides maximum protection against failed DIMMs. Uncorrectable
errors in one channel are corrected by the mirror channel.
l Memory patrol: corrects errors upon detection. If these errors are not corrected promptly,
uncorrectable errors may occur.
To configure memory protection modes, access the BIOS and choose Advanced > Memory
Configuration. For details, see the HUAWEI Server Grantley Platform BIOS Parameter
Reference.
Online Spare Memory Configuration
Online spare memory provides protection against degraded DIMMs by reducing the
likelihood of uncorrected memory errors. This protection is available without any operating
system support.
Online spare memory protection dedicates one rank of each memory channel for use as spare
memory. The remaining ranks are available for OS and application use. If correctable memory
errors occur at a rate higher than a specific threshold on any of the non-spare ranks, the server
automatically copies the memory contents of the degraded rank to the online spare rank.
Mirrored Memory Configuration
Mirroring provides protection against uncorrected memory errors that would otherwise result
in server downtime. Mirroring is performed at the channel level to one memory channel pair
that can be either:
l Channel 1 data being mirrored in channel 2
l Channel 3 data being mirrored in channel 4
If an uncorrectable error is detected in the active memory channel, data is retrieved from the
mirror channel. This channel becomes the new active channel, and the system disables the
channel with the failed DIMM.
FusionServer G5500 Server
User Guide
6 Optional Part Installation
Issue 02 (2017-12-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
128
To Next Page
Loading...
Need help?
General
Weight and Dimensions
