PCI-HOTPLUG-MIB

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Category: Server/Systems Management

Description: Monitors PCI hot-plug controller status, slot power state, and card insertion or removal events on server platforms.

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What Is PCI-HOTPLUG-MIB?

PCI-HOTPLUG-MIB is a hardware-management MIB for monitoring PCI hot-plug controller status on server platforms, allowing administrators to track expansion card slots that support hot insertion and removal without powering down the system. It exposes status data for each hot-plug slot, including physical slot number, PCI bus and device number, bus width (32-bit vs. 64-bit), and bus operating frequency. This MIB is squarely about monitoring hardware status -- the presence, identity, and electrical configuration of PCI cards in hot-swappable slots -- which is important for detecting unexpected card removal, insertion, or misconfiguration on a running server. It reports its own management agent's software version (sieHotPlugAgentVersionMajor/Minor), indicating dependence on a vendor hot-plug management agent rather than a single IETF standard. It is typically deployed on rack or tower servers with PCI/PCI-X hot-plug backplanes where cards must be serviced or replaced without downtime, and the PCI-HOTPLUG-MIB MIB is the reference module administrators consult for this hardware status data.

IPNetwork Monitor allows you to monitor SNMP objects defined in PCI-HOTPLUG-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

servers with PCI/PCI-X hot-plug backplanes

Monitoring Examples

An administrator could poll siePciHotPlugSlotTable entries -- siePciHotPlugSlotPhysicalSlotNumber, siePciHotPlugSlotBusNumber, and siePciHotPlugSlotDeviceNumber -- to build an inventory of installed hot-plug cards, then check siePciHotPlugSlotIs64Bit and siePciHotPlugSlotFrequency to confirm a newly inserted card is running at the expected bus width and clock speed. If siePciHotPlugNumberSlots changes unexpectedly or a slot entry disappears from the table, that would flag a card removal event needing investigation.

What Can Be Monitored

number of hot-plug slots
physical slot, bus, and device numbering
bus width (32-bit/64-bit)
bus operating frequency
hot-plug management agent version

Imported Objects

From RFC1155-SMI

enterprises

From RFC1212-MIB

OBJECT-TYPE

From RFC1213-MIB

DisplayString

From RFC1215-MIB

TRAP-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
sni	1.3.6.1.4.1.231
sniProductMibs	1.3.6.1.4.1.231.2
sniExtensions	1.3.6.1.4.1.231.2.10
sniServerMgmt	1.3.6.1.4.1.231.2.10.2
NTF siePciHotPlugTrapHotRemoval	1.3.6.1.4.1.231.2.10.2.0.1000			A Hot Removal action has been started.
NTF siePciHotPlugTrapHotReplace	1.3.6.1.4.1.231.2.10.2.0.1001			A Hot Replace action has been started.
NTF siePciHotPlugTrapEndHotPlugAction	1.3.6.1.4.1.231.2.10.2.0.1002			The HotPlug action for the physical slot number held in siePciHotPlugTrapPhysicalSlotNumber object is finished.
NTF sieDeviceHotPlugTrapHotRemoval	1.3.6.1.4.1.231.2.10.2.0.1020			A SCSI device has been removed.
NTF sieDeviceHotPlugTrapHotReplace	1.3.6.1.4.1.231.2.10.2.0.1021			A SCSI device has been replaced.
NTF sieDeviceHotPlugTrapHotAdd	1.3.6.1.4.1.231.2.10.2.0.1022			A SCSI device has been added.
sniInventory	1.3.6.1.4.1.231.2.10.2.1
sniCommon	1.3.6.1.4.1.231.2.10.2.2
sniBios	1.3.6.1.4.1.231.2.10.2.2.1
sniEisa	1.3.6.1.4.1.231.2.10.2.2.2
sniHd	1.3.6.1.4.1.231.2.10.2.2.3
sniBus	1.3.6.1.4.1.231.2.10.2.2.4
sniServerControl	1.3.6.1.4.1.231.2.10.2.2.5
sieHotPlug	1.3.6.1.4.1.231.2.10.2.2.6
sieHotPlugAgent	1.3.6.1.4.1.231.2.10.2.2.6.1
INT sieHotPlugAgentVersionMajor	1.3.6.1.4.1.231.2.10.2.2.6.1.1	INTEGER	read-only	Major version number of the MIB
INT sieHotPlugAgentVersionMinor	1.3.6.1.4.1.231.2.10.2.2.6.1.2	INTEGER	read-only	Minor version number of the MIB
siePciHotPlugSlot	1.3.6.1.4.1.231.2.10.2.2.6.2
INT siePciHotPlugNumberSlots	1.3.6.1.4.1.231.2.10.2.2.6.2.1	INTEGER	read-only	Number of Hot Plug slots in the system; -1 if unknown.
siePciHotPlugSlotTable	1.3.6.1.4.1.231.2.10.2.2.6.2.2		not-accessible	Table that contains the Hot Plug slot entries.
siePciHotPlugSlotEntry	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1		not-accessible	Entry of PCI HotPlug Slot .
INT siePciHotPlugSlotLogicalIdentifier	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.1	INTEGER	read-only	Logical Identifier to uniquely identify a Hot Plug slot; -1 if unknown.
INT siePciHotPlugSlotPhysicalSlotNumber	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.2	INTEGER	read-only	Physical Slot Number; -1 if unknown.
INT siePciHotPlugSlotBusNumber	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.3	INTEGER	read-only	PCI Bus Number; -1 if unknown.
INT siePciHotPlugSlotDeviceNumber	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.4	INTEGER	read-only	PCI Device Number; -1 if unknown.
INT siePciHotPlugSlotIs64Bit	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.5	INTEGER	read-only	Indicates whether the slot is a 64-bits or a 32-bits PCI slot.
INT siePciHotPlugSlotFrequency	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.6	INTEGER	read-only	Slot frequency in MHz.It indicates at what frequency the bus for this slot is currently operating, regardless of whether there is an adapter card in the slot or not, and whether the slot is on or off; -1 if unknown.
INT siePciHotPlugSlotState	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.7	INTEGER	read-only	State of the Hot Plug slot: 1 - The state of the Hot Plug slot can't be determined. 2 - The slot is power ON. 3 - The slot is power OFF.
INT siePciHotPlugSlotCardPresent	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.8	INTEGER	read-only	Adapter Card power requirements. It returns the information encoded by PRSNT[1:2]# pins, independent of whether the slot is on or off: 1 - The adapter Card power requirements can't be determined 2 - No adapter card present 3 - Adapter card present, 7.5 W maximum 4 - Adapter card present, 15 W maximum 5 - Adapter card present, 25 W maximum.
INT siePciHotPlugSlotCardLockSwitch	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.9	INTEGER	read-only	State of the Card Lock switch of the associated Hot Plug slot. The Card Lock manages the Mechanical Detect Input 0 (DETECT0# pin) : 1 - The state of the card lock switch can't be determined 2 - The adapter card is locked securely -> the power can be applied 3 - The card lock is removed The power must be powered down : - if not (case of a surprise removal) -> an emergency shutdown of the Hot Plug slot is activated -> the power will not be applied.
STR siePciHotPlugSlotCardName	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.10	DisplayString	read-only	The name of the adapter card associated to the Hot Plug slot, regardless of the adapter card is in the slot or not, and whether the Hot Plug slot is on or off. If there is no associated adapter card, the default string 'no associated adapter card' is returned.
INT siePciHotPlugSlotCardFrequency	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.11	INTEGER	read-only	Adapter Card frequency capability in MHz. It indicates whether the card is capable of operating at 66 MHz,independently of whether the bus is currently operating at 33 MHz or 66 MHz and independently of whether the slot is turned off or on ; -1 if unknown .
INT siePciHotPlugSlotCardState	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.12	INTEGER	read-only	State of the adapter card associated to the Hot Plug slot : 1 - the state of adapter card can't be determined, or is none of the following: 2 - The adapter card is powered and operational 3 - The Hot Plug slot is power down and isolated from the PCI-bus -> the adapter card can safely be removed 4 - The adapter card is removed 5 - The adapter card is quiesced, but the Hot Plug slot is still power on 6 - The adapter card is powered but not operational 7 - A slot power fault has been detected while turning on the Hot Plug slot 8 - The adapter card is non Hot Pluggable 9 - There is no associated adapter card.
INT siePciHotPlugSlotPowerLED	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.13	INTEGER	read-only	State of the Power (green) LED : 1 - The state of the Power LED can't be determined 2 - ON : the power of the associated slot is switched ON and OK 3 - OFF : the power of the associated slot is switched OFF.
INT siePciHotPlugSlotAttentionLED	1.3.6.1.4.1.231.2.10.2.2.6.2.2.1.14	INTEGER	read-only	State of the Attention (yellow) LED : 1 - The state of the Attention LED can't be determined 2 - ON : The adapter card inserted into the associated slot needs attention 3 - OFF : The adapter card inserted into the associated slot is operational.
siePciHotPlugTrapInfo	1.3.6.1.4.1.231.2.10.2.2.6.3
STR siePciHotPlugTrapServerName	1.3.6.1.4.1.231.2.10.2.2.6.3.1	DisplayString	not-accessible	Name of server the trap occured
INT siePciHotPlugTrapPhysicalSlotNumber	1.3.6.1.4.1.231.2.10.2.2.6.3.2	INTEGER	not-accessible	Physical Slot Number for which a Hot Plug Trap is generated.
STR siePciHotPlugTrapResult	1.3.6.1.4.1.231.2.10.2.2.6.3.3	DisplayString	not-accessible	The result of the HotPlug action: - successfull - unsuccessfull.
STR siePciHotPlugTrapCardState	1.3.6.1.4.1.231.2.10.2.2.6.3.4	DisplayString	not-accessible	State of the adapter card associated to the Hot Plug action : - OK - Safe to remove - Removed - Quiesced - Not Ready - Power Fault.
sieDeviceHotPlugTrapInfo	1.3.6.1.4.1.231.2.10.2.2.6.4
STR sieDeviceHotPlugTrapServerName	1.3.6.1.4.1.231.2.10.2.2.6.4.1	DisplayString	not-accessible	Name of server the trap occured
STR sieDeviceHotPlugTrapDeviceName	1.3.6.1.4.1.231.2.10.2.2.6.4.2	DisplayString	not-accessible	The name of the SCSI device for which a Hot Plug Trap is generated.
STR sieDeviceHotPlugTrapAdapterName	1.3.6.1.4.1.231.2.10.2.2.6.4.3	DisplayString	not-accessible	The name of the SCSI adapter where the SCSI device, generating this trap, is connected.
INT sieDeviceHotPlugTrapPCIBusNumber	1.3.6.1.4.1.231.2.10.2.2.6.4.4	INTEGER	not-accessible	PCI Bus Number of the SCSI adapter where the SCSI device, generating this trap, is connected.
INT sieDeviceHotPlugTrapDeviceNumber	1.3.6.1.4.1.231.2.10.2.2.6.4.5	INTEGER	not-accessible	Device Number of the SCSI adapter where the SCSI device, generating this trap, is connected.
sniPcSpecific	1.3.6.1.4.1.231.2.10.2.3
sniScb	1.3.6.1.4.1.231.2.10.2.4
sniOsSpecific	1.3.6.1.4.1.231.2.10.2.5
sniNetware	1.3.6.1.4.1.231.2.10.2.5.1
sniWinNt	1.3.6.1.4.1.231.2.10.2.5.2
sniOs2	1.3.6.1.4.1.231.2.10.2.5.3
sniUnix	1.3.6.1.4.1.231.2.10.2.5.4
sniOemComponents	1.3.6.1.4.1.231.2.10.2.6
sniOemDpt	1.3.6.1.4.1.231.2.10.2.6.1
sniOemMylex	1.3.6.1.4.1.231.2.10.2.6.2
sniMlxDiskArray	1.3.6.1.4.1.231.2.10.2.6.2.1
sniSecurity	1.3.6.1.4.1.231.2.10.2.7
sniSmSecurity	1.3.6.1.4.1.231.2.10.2.7.1
sniServerView	1.3.6.1.4.1.231.2.10.2.8
sniTrapMib	1.3.6.1.4.1.231.2.10.5

RFC description

Siemens PCI Hot Plug MIB for managing hot-pluggable PCI device slots and status.

Start monitoring servers with PCI/PCI-X hot-plug backplanes with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download PCI-HOTPLUG-MIB

What Is PCI-HOTPLUG-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description