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cfgadm_sbd - cfgadm commands for system board administration
cfgadm -l [-a] [-o parsable] ap_id...
cfgadm -c function [-f] [-y | -n]
[-o unassign | nopoweroff] [-v] ap_id...
cfgadm -t [-v] ap_id...
cfgadm -x [-f] [-v] function ap_id...
The cfgadm_sbd plugin provides dynamic reconfiguration functionality for connecting, configuring, unconfiguring, and disconnecting class sbd system boards. It also enables you to connect or disconnect a system board from a running system without having to reboot the system.
The cfgadm command resides in /usr/sbin. See cfgadm(1M). The cfgadm_sbd plugin resides /usr/platform/sun4u/lib/cfgadm.
Each board slot appears as a single attachment point in the device tree. Each component appears as a dynamic attachment point. You can view the type, state, and condition of each component, and the states and condition of each board slot by using the -a option.
The cfgadm options perform differently depending on the platform. Additionally, the form of the attachment points is different depending on the platform. See the Platform Notes section for more information.
The following are the names and descriptions of the component conditions:
failed
ok
unknown
The following is the name and description of the receptacle state for components:
connected
The following are the names and descriptions of the occupant states for components:
configured
unconfigured
The following are the names and descriptions of the board conditions.
failed
ok
unknown
unusable
Inserting a board changes the receptacle state from empty to disconnected. Removing a board changes the receptacle state from disconnected to empty.
Caution: Removing a board that is in the connected state or that is powered on and in the disconnected state crashes the operating system and can result in permanent damage to the system.
The following are the names and descriptions of the receptacle states for boards:
connected
disconnected
empty
The occupant state of a disconnected board is always unconfigured. The following table contains the names and descriptions of the occupant states for boards:
configured
unconfigured
Platforms based on dynamic system domains (DSDs, referred to as domains in this document) divide the slots in the chassis into electrically isolated hardware partitions (that is, DSDs). Platforms that are not based on DSDs assign all slots to the system permanently.
A slot can be empty or populated, and it can be assigned or available to any number of domains. The number of slots available to a given domain is controlled by an available component list (ACL) that is maintained on the system controller. The ACL is not the access control list provided by the Solaris operating environment.
A slot is visible to a domain only if the slot is in the domain's ACL and if it is not assigned to another domain. An unassigned slot is visible to all domains that have the slot in their ACL. After a slot has been assigned to a domain, the slot is no longer visible to any other domain.
A slot that is visible to a domain, but not assigned, must first be assigned to the domain before any other state changing commands are applied. The assign can be done explicitly using -x assign or implicitly as part of a connect. A slot must be unassigned from a domain before it can be used by another domain. The unassign is always explicit, either directly using -x unassign or as an option to disconnect using -o unassign.
Functions that change the state of a board slot or a component on the board can be issued concurrently against any attachment point. Only one state changing operation is permitted at a given time. A Y in the Busy field in the state changing information indicates an operation is in progress.
The following list contains the functions that change the state:
Commands that change the availability of a board can be issued concurrently against any attachment point. Only one availability change operation is permitted at a given time. These functions also change the information string in the cfgadm -l output. A Y in the Busy field indicates that an operation is in progress.
The following list contains the functions that change the availability:
Functions that change the condition of a board slot or a component on the board can be issued concurrently against any attachment point. Only one condition change operation is permitted at a given time. These functions also change the information string in the cfgadm -l output. A Y in the Busy field indicates an operation is in progress.
The following list contains the functions that change the condition:
This section contains a description of the unconfigure process, and illustrates the states of source and target boards at different stages during the process of moving permanent memory.
In the following code examples, the permanent memory on board 0 must be moved to another board in the domain. Thus, board 0 is the source, and board 1 is the target.
A status change operation cannot be initiated on a board while it is marked as busy. For brevity, the CPU information has been removed from the code examples.
The process is started with the following command:
# cfgadm -c unconfigure -y SB0::memory &
First, the memory on board 1 in the same address range as the permanent memory on board 0 must be deleted. During this phase, the source board, the target board, and the memory attachment points are marked as busy. You can display the status with the following command:
# cfgadm -a -s cols=ap_id:type:r_state:o_state:busy SB0 SB1 Ap_Id Type Receptacle Occupant Busy SB0 CPU connected configured y SB0::memory memory connected configured y SB1 CPU connected configured y SB1::memory memory connected configured y
After the memory has been deleted on board 1, it is marked as unconfigured. The memory on board 0 remains configured, but it is still marked as busy, as in the following example.
Ap_Id Type Receptacle Occupant Busy SB0 CPU connected configured y SB0::memory memory connected configured y SB1 CPU connected configured y SB1::memory memory connected unconfigured n
The memory from board 0 is then copied to board 1. After it has been copied, the occupant state for the memory is switched. The memory on board 0 becomes unconfigured, and the memory on board 1 becomes configured. At this point in the process, only board 0 remains busy, as in the following example.
Ap_Id Type Receptacle Occupant Busy SB0 CPU connected configured y SB0::memory memory connected unconfigured n SB1 CPU connected configured n SB1::memory memory connected configured n
After the entire process has been completed, the memory on board 0 remains unconfigured, and the attachment points are not busy, as in the following example.
Ap_Id Type Receptacle Occupant Busy SB0 CPU connected configured n SB0::memory memory connected unconfigured n SB1 CPU connected configured n SB1::memory memory connected configured n
The permanent memory has been moved, and the memory on board 0 has been unconfigured. At this point, you can initiate a new state changing operation on either board.
You can specify platform-specific options that follow the options interpreted by the system board plugin. All platform-specific options must be preceded by the platform keyword. The following example contains the general format of a command with platform-specific options:
command -o sbd_options,platform=platform_options
This man page does not include the -v, -a, -s, or -h options for the cfgadm command. See cfgadm(1M) for descriptions of those options. The following options are supported by the cfgadm_sbd plugin:
-c function
unconfigure
The unconfigure function removes the CPUs from the CPU list and deletes the physical memory from the system memory pool. If any device is still in use, the cfgadm command fails and reports the failure to the user. You can retry the command as soon as the device is no longer busy. If a CPU is in use, you must ensure that it is off line before you proceed. See pbind(1M), psradm(1M) and psrinfo(1M).
The unconfigure function moves the physical memory to another system board before it deletes the memory from the board you want to unconfigure. Depending of the type of memory being moved, the command fails if it cannot find enough memory on another board or if it cannot find an appropriate physical memory range.
For permanent memory, the operating system must be suspended (that is, quiesced) while the memory is moved and the memory controllers are reprogrammed. If the operating system must be suspended, you will be prompted to proceed with the operation. You can use the -y or -n options to always answer yes or no respectively.
Moving memory can take several minutes to complete, depending on the amount of memory and the system load. You can monitor the progress of the operation by issuing a status command against the memory attachment point. You can also interrupt the memory operation by stopping the cfgadm command. The deleted memory is returned to the system memory pool.
disconnect
If the occupant state is configured, the disconnect function attempts to unconfigure the occupant. It then powers off the system board. At this point, the board can be removed from the slot.
This function leaves the board in the assigned state on platforms that support dynamic system domains.
If you specify -o nopoweroff, the disconnect function leaves the board powered on. If you specify -o unassign, the disconnect function unassigns the board from the domain.
If you unassign a board from a domain, you can assign it to another domain. However, if it is assigned to another domain, it is not available to the domain from which is was unassigned.
configure
If the receptacle state is disconnected, the configure function attempts to connect the receptacle. It then walks the tree of devices that is created by the connect function, and attaches the devices if necessary. Running this function configures all of the components on the board, except those that have already been configured.
For CPUs, the configure function adds the CPUs to the CPU list. For memory, the configure function ensures that the memory is initialized then adds the memory to the system memory pool. The CPUs and the memory are ready for use after the configure function has been completed successfully.
For I/O devices, you must use the mount and the ifconfig commands before the devices can be used. See ifconfig(1M) and mount(1M).
connect
If the board slot is not assigned to the domain, the connect function attempts to assign the slot to the domain. Next, it powers on and tests the board, then it connects the board electronically to the system bus and probes the components.
After the connect function is completed successfully, you can use the -a option to view the status of the components on the board. The connect function leaves all of the components in the unconfigured state.
The assignment step applies only to platforms that support dynamic system domains.
-f
The -f option never overrides fundamental safety and availability constraints of the hardware and operating system.
-l
The parsable info field is composed of the following:
cpu
cpuid=#[,#...]
speed=#
ecache=#
memory
address=#
size=#
permanent=#
unconfigurable
inter-board-interleave
source=ap_id
target=ap_id
deleted=#
remaining=#
io
device=path
referenced
board
assigned
powered-on
The same items appear in the info field in a more readable format if the -o parsable option is not specified.
-o parsable
The -o parsable option can be used in conjunction with the -s option. See the cfgadm(1M) man page for more information about the -s option.
-t
Before a board can be connected, it must pass the appropriate level of testing.
Use of this option always attempts to test the board, even if it has already passed the appropriate level of testing. Testing is also performed when a -c connect state change function is issued, in which case the test step can be skipped if the board already shows an appropriate level of testing. Thus the -t option can be used to explicitly request that the board be tested.
-x function
assign
The receptacle state must be disconnected or empty. The board must also be listed in the domain available component list. See Dynamic System Domains.
unassign
The receptacle state must be disconnected or empty. The board must also be listed in the domain available component list. See Dynamic System Domains.
poweron
The receptacle state must be disconnected.
poweroff
The receptacle state must be disconnected.
The following operands are supported:
Receptacle ap_id
The exact format depends on the platform and typically corresponds to the physical labelling on the machine. See the platform specific information in the NOTES section.
Component ap_id
The above convention does not apply to memory compontents. Any DR action on a memory attachment point affects all of the memory on the system board.
The following examples show user input and system output on a Sun Fire 15K system. User input, specifically references to attachment points and system output might differ on other Sun Fire systems, such as the Sun Fire midrange systems such as the 6800. Refer to the Platform Notes for specific information about using the cfgadm_sbd plugin on non-Sun Fire high-end models.
Example 1 Listing All of the System Board
# cfgadm -a -s "select=class(sbd)" Ap_Id Type Receptacle Occupant Condition SB0 CPU connected configured ok SB0::cpu0 cpu connected configured ok SB0::memory memory connected configured ok IO1 HPCI connected configured ok IO1::pci0 io connected configured ok IO1::pci1 io connected configured ok SB2 CPU disconnected unconfigured failed SB3 CPU disconnected unconfigured unusable SB4 unknown empty unconfigured unknown
This example demonstrates the mapping of the following conditions:
Example 2 Listing All of the CPUs on the System Board
# cfgadm -a -s "select=class(sbd):type(cpu)" Ap_Id Type Receptacle Occupant Condition SB0::cpu0 cpu connected configured ok SB0::cpu1 cpu connected configured ok SB0::cpu2 cpu connected configured ok SB0::cpu3 cpu connected configured ok
Example 3 Displaying the CPU Information Field
# cfgadm -l -s noheadings,cols=info SB0::cpu0 cpuid 16, speed 400 MHz, ecache 8 Mbytes
Example 4 Displaying the CPU Information Field in Parsable Format
# cfgadm -l -s noheadings,cols=info -o parsable SB0::cpu0 cpuid=16 speed=400 ecache=8
Example 5 Displaying the Devices on an I/O Board
# cfgadm -a -s noheadings,cols=ap_id:info -o parsable IO1 IO1 powered-on assigned IO1::pci0 device=/devices/saf@0/pci@0,2000 referenced IO1::pci1 device=/devices/saf@0/pci@1,2000 referenced
Example 6 Monitoring an Unconfigure Operation
In the following example, the memory sizes are displayed in Kbytes.
# cfgadm -c unconfigure -y SB0::memory &
# cfgadm -l -s noheadings,cols=info -o parsable SB0::memory SB1::memory
address=0x0 size=2097152 permanent=752592 target=SB1::memory
deleted=1273680 remaining=823472
address=0x1000000 size=2097152 source=SB0::memory
Example 7 Assigning a Slot to a Domain
# cfgadm -x assign SB2
Example 8 Unassigning a Slot from a Domain
# cfgadm -x unassign SB3
See attributes(5) for a description of the following attribute:
| |||||||||
The interface stability is evolving. The output stability is unstable.
cfgadm(1M), devfsadm(1M), ifconfig(1M), mount(1M), pbind(1M), psradm(1M), psrinfo(1M), config_admin(3CFGADM), attributes(5)
This section contains information on how to monitor the progress of a memory delete operation. It also contains platform specific information.
The following shell script can be used to monitor the progress of a memory delete operation.
# cfgadm -c unconfigure -y SB0::memory &
# watch_memdel SB0
#!/bin/sh
# This is the watch_memdel script.
if [ -z "$1" ]; then
printf "usage: %s board_id\n" `basename $0`
exit 1
fi
board_id=$1
cfgadm_info='cfgadm -s noheadings,cols=info -o parsable'
eval `$cfgadm_info $board_id::memory`
if [ -z "$remaining" ]; then
echo no memory delete in progress involving $board_id
exit 0
fi
echo deleting target $target
while true
do
eval `$cfgadm_info $board_id::memory`
if [ -n "$remaining" -a "$remaining" -ne 0 ]
then
echo $deleted KBytes deleted, $remaining KBytes remaining
remaining=
else
echo memory delete is done
exit 0
fi
sleep 1
done
exit 0
The following syntax is used to refer to Platform Notes attachment points on the Sun Enterprise 10000 system:
board::component
where board refers to the system board; and component refers to the individual component. System boards can range from SB0 (zero) to SB15. A maximum of sixteen system boards are available.
The DR 3.0 model running on a Sun Enterprise 10000 domain supports a limited subset of the functionality provided by the cfgadm_sbd plugin. The only supported operation is to view the status of attachment points in the domain. This corresponds to the -l option and all of its associated options.
Attempting to perform any other operation from the domain will result in an error that states that the operation is not supported. All operations to add or remove a system board must be initiated from the System Service Processor.
The following syntax is used to refer to attachment points on the Sun Fire high-end systems:
board::component
where board refers to the system board or I/O board; and component refers to the individual component.
Depending on the system's configuration, system boards can range from SB0 (zero) through SB17, and I/O boards can range from IO0 (IO zero) through IO17. (A maximum of eighteen system and I/O boards are available).
The -t and -x options behave differently on the Sun Fire high-end system platforms. The following list describes their behavior:
-t
-x assign | unassign
The domain administrator is only allowed to assign or unassign a board if it is in the available component list for that domain. The platform administrator does not have this restriction, and can assign or unassign a board even if it is not in the available component list for a domain.
The following are the names and descriptions of the component types:
cpu
io
memory
Note: An operation on a memory component affects all of the memory components on the board.
References to attachment points are slightly different on Sun Fire midrange servers such as the 6800, 4810, 4800, and 3800 systems than on the Sun Fire high-end systems. The following syntax is used to refer to attachment points on Sun Fire systems other than the Sun Fire 15K:
N#.board::component
where N# refers to the node; board refers to the system board or I/O board; and component refers to the individual component.
Depending on the system's configuration, system boards can range from SB0 through SB5, and I/O boards can range from IB6 through IB9. (A maximum of six system and four I/O boards are available).
The following are the names and descriptions of the component types:
cpu
pci
memory
Note: An operation on a memory component affects all of the memory components on the board.
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