Lenovo TD100 Bedienungsanleitung PDF herunterladen (Seite 117)

v The server supports memory mirroring (mirroring mode) and online-spare

memory.

– Memory mirroring replicates and stores data on DIMMs within two branches

simultaneously. You must enable memory mirroring through the

Configuration/Setup Utility program. To enable memory mirroring in the

Configuration/Setup Utility program, select Devices and I/O Ports →

Advanced Chipset Control → Memory Branch Mode. Use the arrow keys to

change the Memory Branch Mode setting to Mirror; then, save your changes.

For more information on the Configuration/Setup Utility program, see the User

Guide. When you use memory mirroring, consider the following information:

- For ThinkServer TD100 models, the maximum available memory is reduced

to 16 GB, instead of the 32 GB available in non-mirroring mode.

- For ThinkServer TD100x models, the maximum available memory is

reduced to 24 GB, instead of the 48 GB available in non-mirroring mode.

- The minimum memory configuration is four identical DIMMs. You must

install identical pairs of fully buffered, dual-inline memory modules (DIMMs)

in all four DIMM connectors (same size, type, speed, and technology).

These DIMMs must span across both branches and all four channels. For

example, when you install the first four DIMMs, you must install two DIMMs

in branch 0 (one in channel 0 and one in channel 1) and two DIMMs in

branch 1 (one in channel 2 and one in channel 3). See Table 15 for the

DIMM installation sequence.

- When you upgrade the server to eight or 12 DIMMs, the DIMMs that are

next to each other (for example, DIMM connector 1 and DIMM connector 4)

within the channels of a branch must be identical in size, type, speed, and

technology. However, the DIMMs in the connectors above or below each

other within the channels of a branch do not have to be identical to each

other (for example, the DIMMs in DIMM connector 1 and DIMM connector

2).

- Both branches operate in dual-channel mode.

The following table shows the DIMM configuration upgrade sequence for

operating in mirroring mode.

Table 15. DIMM upgrade configuration sequence in mirroring mode

Number of DIMMs DIMM connectors

4 1,4,7,10

8 1, 4, 7, 10, 2, 5, 8, 11

12 (ThinkServer TD100x Machine Types

4203, 4204, 4205, and 4206)

1, 4, 7, 10, 2, 5, 8, 11, 3, 6, 9, 12

Note: For ThinkServer TD100 models (Machine Types 6398, 6399, 6419, 6429, 4203, and

4206), DIMM connectors 3, 6, 9, and 12 are not functional. Do not install DIMMs in these

connectors.

– Online-spare memory disables a failed rank pair of DIMMs from the system

configuration and activates an online-spare rank pair of DIMMs to replace the

failed rank pair of DIMMs. For an online-spare pair of DIMMs to be activated,

you must enable this feature and have installed an additional rank pair of

DIMMs of the same speed, type, size (or larger), and technology as the failed

pair of DIMMs. You must enable the feature through the Configuration/Setup

Utility program. To enable online-spare memory in the Configuration/Setup

Utility program, select Devices and I/O Ports → Advanced Chipset Control →

Memory Branch Mode. Use the arrow keys to change the setting for Branch

0 Rank Sparing or Branch 1 Rank Sparing to Enabled; then, save your

Chapter 4. Removing and replacing server components 99

1 2 ... 112 113 114 115 116 117 118 119 120 121 122 ... 253 254

Lenovo TD100 Bedienungsanleitung Seite 117

Kommentare zu diesen Handbüchern