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This alternative is relevant to Host SSH certificates keys and OS access segregation but does not directly resolve the current BCM high availability and management failover issue: Review authorized key and account policy, SSH server settings, firewall reachability and authentication logs. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design.

This alternative is relevant to Compute fabric interface bonding and RDMA prerequisites but does not directly resolve the current BCM high availability and management failover issue: Align supported interface or bond configuration, RDMA stack and fabric QoS with the cluster topology. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design. Adding a second management host does not prove cluster-manager continuity unless state and advertised services fail over.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design. The governing mechanism is: Adding a second management host does not prove cluster-manager continuity unless state and advertised services fail over. The proportionate action is: Configure supported BCM HA peers, synchronized services and planned failover tests with clear recovery boundaries.

This alternative is relevant to BCM node categories and role inheritance but does not directly resolve the current BCM high availability and management failover issue: Inspect category membership, inherited images, node overrides, resulting configuration and change impact. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design.

This alternative is relevant to Slurm GPU GRES enumeration and device mapping but does not directly resolve the current BCM high availability and management failover issue: Inspect slurmd discovery, gres configuration, CUDA_VISIBLE_DEVICES and simultaneous job placement. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design. The governing mechanism is: Adding a second management host does not prove cluster-manager continuity unless state and advertised services fail over. The proportionate action is: Configure supported BCM HA peers, synchronized services and planned failover tests with clear recovery boundaries. A direct check is: Check HA roles, sync status, virtual management endpoint, database replication and isolation tests. The acceptance condition is: A planned primary outage transfers management to standby without losing cluster configuration integrity.

This alternative is relevant to Base Command Manager head-node installation but does not directly resolve the current BCM high availability and management failover issue: The management node reports correct cluster state and consistently deploys an approved image to intended nodes. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design.

This alternative is relevant to Compute fabric interface bonding and RDMA prerequisites but does not directly resolve the current BCM high availability and management failover issue: Each workload reaches the intended high-speed path and RDMA transfer passes with correct device selection. Observed scenario: During planned head-node maintenance all provisioning and cluster control stop despite an advertised HA design.

This alternative is relevant to BCM node categories and role inheritance but does not directly resolve the current BCM high availability and management failover issue: Define explicit BCM node categories and managed overrides for shared hardware and service configuration. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby.

This alternative is relevant to Base Command Manager head-node installation but does not directly resolve the current BCM high availability and management failover issue: Install the supported BCM head-node services and preserve configuration data before provisioning and accepting workers. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. A configuration change updates the primary manager but fails to replicate critical management state to standby.

That option concerns Cluster user identities quota and access management, not the requirement in this case.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. A configuration change updates the primary manager but fails to replicate critical management state to standby. Adding a second management host does not prove cluster-manager continuity unless state and advertised services fail over.

That option concerns Slurm controller partition setup. The acceptance condition is: A planned primary outage transfers management to standby without losing cluster configuration integrity.

This alternative is relevant to BCM image provisioning and PXE worker boot but does not directly resolve the current BCM high availability and management failover issue: Inspect DHCP leases, PXE requests, image revisions, BCM node mappings and host boot traces. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby.

This alternative is relevant to Base Command Manager head-node installation but does not directly resolve the current BCM high availability and management failover issue: Inspect BCM service health, database backups, node discovery, management interfaces and provisioning records. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby. The governing mechanism is: Adding a second management host does not prove cluster-manager continuity unless state and advertised services fail over. The proportionate action is: Configure supported BCM HA peers, synchronized services and planned failover tests with clear recovery boundaries.

This tempting but unsafe shortcut is not a sufficient remediation for BCM high availability and management failover: Call BCM highly available solely because a second server has the same hostname printed on its asset label. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby. The governing mechanism is: Adding a second management host does not prove cluster-manager continuity unless state and advertised services fail over. The proportionate action is: Configure supported BCM HA peers, synchronized services and planned failover tests with clear recovery boundaries. A direct check is: Check HA roles, sync status, virtual management endpoint, database replication and isolation tests. The acceptance condition is: A planned primary outage transfers management to standby without losing cluster configuration integrity.

This alternative is relevant to Host SSH certificates keys and OS access segregation but does not directly resolve the current BCM high availability and management failover issue: Approved operators reach only assigned nodes and unauthorized sessions fail with traceable audit events. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby.

This alternative is relevant to Base Command Manager head-node installation but does not directly resolve the current BCM high availability and management failover issue: The management node reports correct cluster state and consistently deploys an approved image to intended nodes. Observed scenario: A configuration change updates the primary manager but fails to replicate critical management state to standby.

This alternative is relevant to BCM image provisioning and PXE worker boot but does not directly resolve the current BCM node categories and role inheritance issue: Validate DHCP/PXE services, provisioned image and node identity mapping, then test clean node reboots. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This alternative is relevant to Slurm scheduling time limits fairness and preemption but does not directly resolve the current BCM node categories and role inheritance issue: Define queue priority, reservations and preemption or checkpoint controls suited to workload importance. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This tempting but unsafe shortcut is not a sufficient remediation for BCM node categories and role inheritance: Treat managed BCM category configuration as merely a label that cannot overwrite manually modified worker settings.

That option concerns Slurm GPU GRES enumeration and device mapping. The acceptance condition is: Correct GPU workers receive the intended profile without unrelated node categories being modified.

This tempting but unsafe shortcut is not a sufficient remediation for BCM node categories and role inheritance: Treat managed BCM category configuration as merely a label that cannot overwrite manually modified worker settings. A BCM category groups settings applied to member nodes; untracked manual changes may conflict with managed desired state.

This alternative is relevant to Base Command Manager head-node installation but does not directly resolve the current BCM node categories and role inheritance issue: Cluster managers coordinate images, nodes, services and configuration; worker OS boot cannot replace control-plane readiness. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This alternative is relevant to Compute fabric interface bonding and RDMA prerequisites but does not directly resolve the current BCM node categories and role inheritance issue: Inspect interfaces, RDMA devices, routing, bond membership, link counters and representative transfer tests. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This tempting but unsafe shortcut is not a sufficient remediation for BCM node categories and role inheritance: Treat managed BCM category configuration as merely a label that cannot overwrite manually modified worker settings. GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This alternative is relevant to Slurm controller partition setup but does not directly resolve the current BCM node categories and role inheritance issue: Review slurm.conf, controller health, partition listings, node state and a submitted sample job. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This alternative is relevant to Linux operating system and kernel module support but does not directly resolve the current BCM node categories and role inheritance issue: Inspect kernel version, signed modules, driver logs, package provenance and canary compatibility tests. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.

This tempting but unsafe shortcut is not a sufficient remediation for BCM node categories and role inheritance: Treat managed BCM category configuration as merely a label that cannot overwrite manually modified worker settings. GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages. A BCM category groups settings applied to member nodes; untracked manual changes may conflict with managed desired state.

This alternative is relevant to Compute fabric interface bonding and RDMA prerequisites but does not directly resolve the current BCM node categories and role inheritance issue: Align supported interface or bond configuration, RDMA stack and fabric QoS with the cluster topology. Observed scenario: GPU workers assigned to a general-purpose category receive CPU-only image settings and missing driver packages.