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CHAPTER 3 Component Configuration and Replacement (Add, Remove)
3.2 High availability configuration
34
C122-E175-01EN
TABLE 3.3 DR supported list
Component
Function
Windows Server
VMware
ESXi 5 or later
Red Hat
Enterprise
Linux RHEL6.4
or later
SUSE
Enterprise
Linux 11
Windows
2008 R2 or later
SB
CPU (*2)
DIMM (*2)
Hot add
Not supported
Not supported
Supported
Not supported
Hot remove
(*1)
Not supported
Not supported
Not supported
Not supported
Hot replace
Not supported
Not supported
Not supported
Not supported
IOU
Hot add
Not supported
Not supported
Supported
Not supported
Hot remove
Not supported
Not supported
Supported
Not supported
Hot replace
Not supported
Not supported
Supported
Not supported
PCI_Box (*3)
Hot add
Not supported
Not supported
Supported
Not supported
Hot remove
Not supported
Not supported
Supported
Not supported
Hot replace
Not supported
Not supported
Supported
Not supported
*1: Hot remove of SB not possible.
*2: Physical replacement of CPU and DIMM as hardware is not possible. When replacing the CPU and the
DIMM, the SB is removed by the hot remove of SB. Or the partition is stopped.
*3: DR function of PCI_Box is operated with DR function of IOU.
How to check the dp command package
Execute the following command, and check whether the dp command package has been installed.
# rpm –qa | grep FJSVdp-util
Example:
# rpm -qa | grep FJSVdp-util
FJSVdp-util-RHEL6-1.0.0-1.noarch
In case it has not been installed, see 4.1 Dynamic Reconfiguration (DR).
Type of memory in DR
There are three types of memory of DR, shown below, depending on the conditions of use.
- Kernel memory
It is the memory internally used by the operating system. The kernel memory cannot be disconnected
from the system by SB hot-plug operation. It is secured from the memory of the Home SB at startup
- User memory
If is a memory in which the kernel memory is not loaded, the user memory can be hot-removed from the
system by the SB hot plug operation.
- Special memory
It is a hugetlbfs special memory. hugetlbfs cannot be disconnected from the system by SB hot plug
operation. Therefore, this memory is present only on the Home SB.
Notes / Limitations
- All the SB firmware shall be of the same version number.
- The added SB and CPU have same product name in the partition.
- Kernel memory is present only in the Home SB. Therefore, hot remove of Home SB is not supported.
- The Home SB cannot be changed to another SB while the partition is running.
- The DR function (hot add/ hot remove) is manually operated using the DR operation of the MMB
command of the command interface (CLI). There will be no automatic processing in conjunction with
proactive monitoring. DR operation is not possible in the maintenance mode.
- When using the DR function, the same type of DIMMs must be arranged in the system. Even in case of
SB hot add, the DIMM to be added must be the same type of DIMM.
- When increasing the number of CPUs in a DR operation (hot add), additional CPU licenses must be
purchased for the software that is running in the relevant partition.
- Two CPUs must be mounted on the SB intended for hot add.
- Two CPUs must be mounted on SBs in the partition where SB hot add is intended to be performed.