VMware Smart Assurance SMARTS: During device discovery processor and memory instances get deleted on HostResrcs driver probe
Article ID: 345364
Updated On:
Products
Issue/Introduction
Here is an example, where it is observed that the Processor and Memory instances are being deleted post creation during the device discovery.
Debug enabled domain log has below entries:
[August 9, 2019 10:13:21 AM GMT+01:00 +537ms] t@1583335168 Discovery #1
ASL_MSG-*-ASLP-discovery/ic-cisco-router-crs-health.asl: discovery/ic-cisco-router-crs-health.asl: CREATE CPU: lbg-XXX
[August 9, 2019 10:13:21 AM GMT+01:00 +730ms] t@1583335168 Discovery #1
ASL_MSG-*-ASLP-discovery/ic-cisco-router-crs-health.asl: discovery/ic-cisco-router-crs-health.asl.1.3.6.1.4.1.9.9.221.1.1.1.1.3 [7000.1] = 50726F6XXX73736F72
[August 9, 2019 10:13:23 AM GMT+01:00 +492ms] t@1583335168 Discovery #1
AD_MSG-*-AD_LOG-at 'ProbeClosure t@1583335168', while discovering 'lbg-XXX', invoking HostResrcs-Probe
[August 9, 2019 10:13:23 AM GMT+01:00 +774ms] t@1583335168 Discovery #1
DSCV-W-DELETE_COMPONENT-'PSR-lbg-XXX/7' is no longer found on 'lbg-XXX'. It is removed from topology
[August 9, 2019 10:13:24 AM GMT+01:00 +466ms] t@1583335168 Discovery #1
ASL_MSG-*-ASLP-discovery/ic-hostresources-arista-mib2-other.asl: discovery/ic-hostresources-arista-mib2-other.asl: HOST_OS: lbg-XXX
[August 9, 2019 10:13:24 AM GMT+01:00 +466ms] t@1583335168 Discovery #1
ASL_MSG-*-ASLP-discovery/ic-hostresources-arista-mib2-other.asl: .1.3.6.1.2.1.1.1 [0] = <Device OS details>
[August 9, 2019 10:13:24 AM GMT+01:00 +470ms] t@1583335168 Discovery #1
DSCV-W-DELETE_COMPONENT-'MEM-lbg-XXX/7000.1 [Processor]' is no longer found on 'lbg-XXX'. It is removed from topology
Environment
Cause
Below field certification was deployed on prior Smarts installation 9.2.x:
#Cisco 4431 ISR
.1.3.6.1.4.1.9.1.1935 {
TYPE = Router
VENDOR = Cisco
MODEL = CISCO-4431-ISR
CERTIFICATION = TEMPLATE
CONT = Cisco-Router-Entity
HOSTRESRCS = Arista-MIB2
NEIGHBOR = Cisco-Cdp
HEALTH = Cisco-Router-CRS-EntSensor
VLAN = Cisco-CVI-Vlan
INSTRUMENTATION:
Card-Fault = CiscoEntityFRU
Environment = CiscoEntityFRU:DeviceID
CPU/Memory = CiscoRouter:DeviceID
Interface-Fault = MIB2
Interface-Performance = CiscoRouter
Interface-Ethernet-Performance = CiscoRouter_Ethernet
}
Post upgrade to the Smarts IP version 9.5.1 patch 1, the device official certification doesn't have the entry HOSTRESRCS = Arista-MIB2. Earlier field certification has been commented out.
A reloadoid was performed on the domain successfully with below command:
sm_tpmgr -s <Incharge Domain> --reloadoid
However it is observed that the HostResrcs driver (ic-hostresources-arista-mib2-other.asl) is still invoked during device discovery.
The above reloadoid command does not clear the GA_SelectiveDriver entries on the IP domain which is responsible to run the HostResrcs Probe.
Resolution
The HostResrcs-Probe is run via GA_SelectiveDriver::HostResrcs-Probe which selects based on certification. In order to clear the entry of HostResrcs-Probe from the GA_SelectiveDriver in IP domain post making changes to the certification, follow the below steps:
1. Verify that the selector pattern does not include the device OID (.1.3.6.1.4.1.9.1.1935 in this example) mapped with any HostResrcs driver with the below:
./dmctl -s <IP Domain Name> get GA_SelectiveDriver::HostResrcs-Probe
2. If it is present, remove the same using the below command:
./dmctl -s <IP Domain Name> invoke GA_SelectiveDriver::HostResrcs-Probe removeSelector .1.3.6.1.4.1.9.1.1935 | tee
3. Rediscover the device
Additional Information
Processor and Memory instances get deleted during device discovery
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