OpenSM参数更改和必需的操作
应用介绍
更改OpenSM配置文件（InfiniBand子网管理器）参数之一，需要执行重扫网络（HUP操作）或重启OpenSM程序。 与重新启动SM相比，发信号给SM并触发重扫描是一项不那么经常的操作。
重新启动OpenSM时，所有端口都需要重新加入多播组并重新发送路径记录查询。 另外，所有多播树都被重新路由，这可能会中断多播流量并导致OpenSM重新计算单播路由表
重要说明：如果文件参数从“（null）”更改为特定路径，则无需重新启动OpenSM。
仅当文件参数更改的文件名的路径更改时才需要SM重新启动。
将rch_policy_file（空）更改为rch_policy_file /opt/ufm/files/conf/opensm/chain.conf只需将HUP信号发送到OpenSM进程
将rch_policy_file /opt/ufm/files/conf/opensm/chain.conf更改为rch_policy_file /opt/ufm/files/conf/opensm/new_chain.conf需要重新启动OpenSM
如果某些配置文件的内容发生更改，则还应该将HUP信号发送到OpenSM。
要在更改参数后执行HUP，请运行以下命令
请参阅下表以查看所有OpenSM参数及其所需的更改操作。
# kill -s HUP <pidof opensm>
| Parameter | Change Action |
|---|---|
| guid | Restart |
| m_key | HUP |
| sm_key | HUP |
| sa_key | HUP |
| subnet_prefix | Restart |
| m_key_lease_period | HUP |
| m_key_protection_level | HUP |
| m_key_lookup | HUP |
| sweep_interval | HUP |
| max_wire_smps | HUP |
| max_wire_smps2 | HUP |
| max_smps_timeout | HUP |
| max_sa_reports_queued | HUP |
| max_sa_reports_on_wire | HUP |
| console | Restart |
| console_port | Restart |
| transaction_timeout | Restart |
| transaction_retries | Restart |
| max_msg_fifo_timeout | HUP |
| sm_priority | HUP |
| master_sm_priority | Restart |
| lmc | Restart |
| lmc_esp0 | Restart |
| max_op_vls | HUP |
| max_neighbor_mtu | Restart |
| force_link_speed | HUP |
| force_link_speed_ext | HUP |
| fdr10 | HUP |
| support_mepi_speeds | HUP |
| mepi_enabled_speeds | HUP |
| reassign_lids | HUP |
| ignore_other_sm | HUP |
| single_thread | Restart |
| disable_multicast | HUP |
| subnet_timeout | HUP |
| packet_life_time | HUP |
| vl_stall_count | HUP |
| leaf_vl_stall_count | HUP |
| head_of_queue_lifetime | HUP |
| leaf_head_of_queue_lifetime | HUP |
| local_phy_errors_threshold | HUP |
| overrun_errors_threshold | HUP |
| use_mfttop | HUP |
| sminfo_polling_timeout | HUP |
| polling_retry_number | HUP |
| force_heavy_sweep | HUP |
| port_prof_ignore_file | Restart |
| hop_weights_file | Restart |
| dimn_ports_file | Restart |
| port_search_ordering_file | Restart |
| port_profile_switch_nodes | HUP |
| sweep_on_trap | HUP |
| routing_engine | HUP |
| connect_roots | HUP |
| calculate_missing_routes | HUP |
| use_ucast_cache | Restart |
| log_file | Restart |
| log_max_size | HUP |
| log_flags | HUP |
| force_log_flush | HUP |
| accum_log_file | HUP |
| partition_config_file | Restart |
| no_partition_enforcement | HUP |
| part_enforce | HUP |
| allow_both_pkeys | Restart |
| sm_assigned_guid | HUP |
| qos | HUP |
| qos_policy_file | Restart |
| suppress_sl2vl_mad_status_errors | HUP |
| override_create_mcg_sl | HUP |
| dump_files_dir | Restart |
| lid_matrix_dump_file | Restart |
| lfts_file | Restart |
| root_guid_file | Restart |
| pgrp_policy_file | Restart |
| topo_policy_file | Restart |
| rch_policy_file | Restart |
| ftree_ca_order_dump_file | Restart |
| held_back_sw_file | Restart |
| cn_guid_file | Restart |
| io_guid_file | Restart |
| port_shifting | HUP |
| scatter_ports | HUP |
| updn_lid_tracking_mode | HUP |
| multicast_optimization | Restart |
| max_seq_redisc | HUP |
| rereg_on_guid_migr | Restart |
| aguid_inout_notice | HUP |
| sm_assign_guid_func | HUP |
| mc_primary_root_guid | HUP |
| mc_secondary_root_guid | HUP |
| mc_roots_file | Restart |
| max_reverse_hops | HUP |
| routing_threads_num | HUP |
| max_threads_per_core | HUP |
| ids_guid_file | Restart |
| guid_routing_order_file | Restart |
| guid_routing_order_no_scatter | HUP |
| use_scatter_for_switch_lid | HUP |
| pqft_structure | Restart |
| sa_db_file | Restart |
| sa_db_dump | HUP |
| sm_db_dump | HUP |
| torus_config | HUP |
| do_mesh_analysis | HUP |
| exit_on_fatal | HUP |
| honor_guid2lid_file | HUP |
| daemon | Restart |
| sm_inactive | HUP |
| babbling_port_policy | HUP |
| drop_subscr_on_report_fail | HUP |
| drop_event_subscriptions | HUP |
| ipoib_mcgroup_creation_validation | HUP |
| mcgroup_join_validation | HUP |
| reports | HUP |
| use_optimized_slvl | HUP |
| fsync_high_avail_files | HUP |
| default_mcg_mtu | HUP |
| default_mcg_rate | HUP |
| ar_sl_mask | HUP |
| enable_ar_by_device_cap | HUP |
| ar_transport_mask | HUP |
| enhanced_qos_policy_file | Restart |
| sharp_enabled | HUP |
| virt_enabled | Restart |
| virt_max_ports_in_process | HUP |
| osm_stats_interval | HUP |
| enable_inc_mc_routing | HUP |
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| 名称 | 大小 | 修改日期 |
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