CHAPTER 3 Component Configuration and Replacement (Add, Remove)
3.2 High availability configuration
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C122-E175-01EN
FIGURE 3.5 IOU Hot add
No.
Description
(1)
Dynamic addition of IOU (operation by operator)
FIGURE 3.6 IOU hot remove (removal of failed IOU)
No.
Description
(1)
Fault suspected
(2)
Dynamic disconnection of IOU (operator operation)
(3)
Replacement
Rules of DR
The DR is set in the UEFI.
The DR applicable conditions are as follows.
TABLE 3.2 Applicable criteria
Item
Setting / criteria
IO mode
Flexible I/O mode
PCI Address mode
PCI segment mode
SB
At least one SB
CPU
At least one CPU configuration
Each CPU must have a separate local memory
Memory (*1)
Home SB
2GB+ (Quantity of Logical CPUs X100MB) + (Memory capacity
of the total system x0.03) + Memory capacity of HugeTLB
Excluding Home SB
Nothing specific
DR Function
Enabled
TXT / TPM Function
Disabled
*1: In case of SB hot add, the SB to be added, should be a Free SB, or a Reserved SB of the target partition.
The target of the DR function and supported operating systems are shown below.