------------------------------------------------------------------------ ZFS Subsystem Report Sun Feb 07 09:14:12 2021 Linux 5.10.0-3-powerpc64le 2.0.2-1 Machine: steve (ppc64le) 2.0.2-1 ARC status: HEALTHY Memory throttle count: 0 ARC size (current): 1.9 % 1.2 GiB Target size (adaptive): 6.2 % 4.0 GiB Min size (hard limit): 6.2 % 4.0 GiB Max size (high water): 16:1 63.6 GiB Most Frequently Used (MFU) cache size: 85.1 % 483.5 MiB Most Recently Used (MRU) cache size: 14.9 % 84.6 MiB Metadata cache size (hard limit): 75.0 % 47.7 GiB Metadata cache size (current): 1.1 % 542.0 MiB Dnode cache size (hard limit): 10.0 % 4.8 GiB Dnode cache size (current): 0.1 % 2.7 MiB ARC hash breakdown: Elements max: 18.0k Elements current: 100.0 % 18.0k Collisions: 12 Chain max: 1 Chains: 12 ARC misc: Deleted: 297 Mutex misses: 0 Eviction skips: 2 ARC total accesses (hits + misses): 189.9k Cache hit ratio: 90.3 % 171.6k Cache miss ratio: 9.7 % 18.3k Actual hit ratio (MFU + MRU hits): 90.3 % 171.6k Data demand efficiency: 36.3 % 5.0k Data prefetch efficiency: 0.0 % 109 Cache hits by cache type: Most frequently used (MFU): 85.4 % 146.5k Most recently used (MRU): 14.6 % 25.1k Most frequently used (MFU) ghost: 0.0 % 0 Most recently used (MRU) ghost: 0.0 % 0 Anonymously used: < 0.1 % 1 Cache hits by data type: Demand data: 1.1 % 1.8k Demand prefetch data: 0.0 % 0 Demand metadata: 98.9 % 169.7k Demand prefetch metadata: < 0.1 % 39 Cache misses by data type: Demand data: 17.4 % 3.2k Demand prefetch data: 0.6 % 109 Demand metadata: 11.2 % 2.1k Demand prefetch metadata: 70.7 % 13.0k DMU prefetch efficiency: 1.6k Hit ratio: 10.4 % 163 Miss ratio: 89.6 % 1.4k L2ARC not detected, skipping section Solaris Porting Layer (SPL): spl_hostid 0 spl_hostid_path /etc/hostid spl_kmem_alloc_max 4194304 spl_kmem_alloc_warn 65536 spl_kmem_cache_kmem_threads 4 spl_kmem_cache_magazine_size 0 spl_kmem_cache_max_size 32 spl_kmem_cache_obj_per_slab 8 spl_kmem_cache_reclaim 0 spl_kmem_cache_slab_limit 0 spl_max_show_tasks 512 spl_panic_halt 0 spl_schedule_hrtimeout_slack_us 0 spl_taskq_kick 0 spl_taskq_thread_bind 0 spl_taskq_thread_dynamic 1 spl_taskq_thread_priority 1 spl_taskq_thread_sequential 4 Tunables: dbuf_cache_hiwater_pct 10 dbuf_cache_lowater_pct 10 dbuf_cache_max_bytes 18446744073709551615 dbuf_cache_shift 5 dbuf_metadata_cache_max_bytes 18446744073709551615 dbuf_metadata_cache_shift 6 dmu_object_alloc_chunk_shift 7 dmu_prefetch_max 134217728 ignore_hole_birth 1 l2arc_feed_again 1 l2arc_feed_min_ms 200 l2arc_feed_secs 1 l2arc_headroom 2 l2arc_headroom_boost 200 l2arc_meta_percent 33 l2arc_mfuonly 0 l2arc_noprefetch 1 l2arc_norw 0 l2arc_rebuild_blocks_min_l2size 1073741824 l2arc_rebuild_enabled 1 l2arc_trim_ahead 0 l2arc_write_boost 8388608 l2arc_write_max 8388608 metaslab_aliquot 524288 metaslab_bias_enabled 1 metaslab_debug_load 0 metaslab_debug_unload 0 metaslab_df_max_search 16777216 metaslab_df_use_largest_segment 0 metaslab_force_ganging 16777217 metaslab_fragmentation_factor_enabled 1 metaslab_lba_weighting_enabled 1 metaslab_preload_enabled 1 metaslab_unload_delay 32 metaslab_unload_delay_ms 600000 send_holes_without_birth_time 1 spa_asize_inflation 24 spa_config_path /etc/zfs/zpool.cache spa_load_print_vdev_tree 0 spa_load_verify_data 1 spa_load_verify_metadata 1 spa_load_verify_shift 4 spa_slop_shift 5 vdev_file_logical_ashift 9 vdev_file_physical_ashift 9 vdev_removal_max_span 32768 vdev_validate_skip 0 zap_iterate_prefetch 1 zfetch_array_rd_sz 1048576 zfetch_max_distance 8388608 zfetch_max_idistance 67108864 zfetch_max_streams 8 zfetch_min_sec_reap 2 zfs_abd_scatter_enabled 1 zfs_abd_scatter_max_order 8 zfs_abd_scatter_min_size 1536 zfs_admin_snapshot 0 zfs_allow_redacted_dataset_mount 0 zfs_arc_average_blocksize 8192 zfs_arc_dnode_limit 0 zfs_arc_dnode_limit_percent 10 zfs_arc_dnode_reduce_percent 10 zfs_arc_evict_batch_limit 10 zfs_arc_eviction_pct 200 zfs_arc_grow_retry 0 zfs_arc_lotsfree_percent 10 zfs_arc_max 0 zfs_arc_meta_adjust_restarts 4096 zfs_arc_meta_limit 0 zfs_arc_meta_limit_percent 75 zfs_arc_meta_min 0 zfs_arc_meta_prune 10000 zfs_arc_meta_strategy 1 zfs_arc_min 0 zfs_arc_min_prefetch_ms 0 zfs_arc_min_prescient_prefetch_ms 0 zfs_arc_p_dampener_disable 1 zfs_arc_p_min_shift 0 zfs_arc_pc_percent 0 zfs_arc_shrink_shift 0 zfs_arc_shrinker_limit 10000 zfs_arc_sys_free 0 zfs_async_block_max_blocks 18446744073709551615 zfs_autoimport_disable 1 zfs_checksum_events_per_second 20 zfs_commit_timeout_pct 5 zfs_compressed_arc_enabled 1 zfs_condense_indirect_commit_entry_delay_ms 0 zfs_condense_indirect_vdevs_enable 1 zfs_condense_max_obsolete_bytes 1073741824 zfs_condense_min_mapping_bytes 131072 zfs_dbgmsg_enable 1 zfs_dbgmsg_maxsize 4194304 zfs_dbuf_state_index 0 zfs_ddt_data_is_special 1 zfs_deadman_checktime_ms 60000 zfs_deadman_enabled 1 zfs_deadman_failmode wait zfs_deadman_synctime_ms 600000 zfs_deadman_ziotime_ms 300000 zfs_dedup_prefetch 0 zfs_delay_min_dirty_percent 60 zfs_delay_scale 500000 zfs_delete_blocks 20480 zfs_dirty_data_max 4294967296 zfs_dirty_data_max_max 4294967296 zfs_dirty_data_max_max_percent 25 zfs_dirty_data_max_percent 10 zfs_dirty_data_sync_percent 20 zfs_disable_ivset_guid_check 0 zfs_dmu_offset_next_sync 0 zfs_expire_snapshot 300 zfs_fallocate_reserve_percent 110 zfs_flags 0 zfs_free_bpobj_enabled 1 zfs_free_leak_on_eio 0 zfs_free_min_time_ms 1000 zfs_history_output_max 1048576 zfs_immediate_write_sz 32768 zfs_initialize_chunk_size 1048576 zfs_initialize_value 16045690984833335022 zfs_keep_log_spacemaps_at_export 0 zfs_key_max_salt_uses 400000000 zfs_livelist_condense_new_alloc 0 zfs_livelist_condense_sync_cancel 0 zfs_livelist_condense_sync_pause 0 zfs_livelist_condense_zthr_cancel 0 zfs_livelist_condense_zthr_pause 0 zfs_livelist_max_entries 500000 zfs_livelist_min_percent_shared 75 zfs_lua_max_instrlimit 100000000 zfs_lua_max_memlimit 104857600 zfs_max_async_dedup_frees 100000 zfs_max_log_walking 5 zfs_max_logsm_summary_length 10 zfs_max_missing_tvds 0 zfs_max_nvlist_src_size 0 zfs_max_recordsize 1048576 zfs_metaslab_fragmentation_threshold 70 zfs_metaslab_max_size_cache_sec 3600 zfs_metaslab_mem_limit 75 zfs_metaslab_segment_weight_enabled 1 zfs_metaslab_switch_threshold 2 zfs_mg_fragmentation_threshold 95 zfs_mg_noalloc_threshold 0 zfs_min_metaslabs_to_flush 1 zfs_multihost_fail_intervals 10 zfs_multihost_history 0 zfs_multihost_import_intervals 20 zfs_multihost_interval 1000 zfs_multilist_num_sublists 0 zfs_no_scrub_io 0 zfs_no_scrub_prefetch 0 zfs_nocacheflush 0 zfs_nopwrite_enabled 1 zfs_object_mutex_size 64 zfs_obsolete_min_time_ms 500 zfs_override_estimate_recordsize 0 zfs_pd_bytes_max 52428800 zfs_per_txg_dirty_frees_percent 5 zfs_prefetch_disable 0 zfs_read_history 0 zfs_read_history_hits 0 zfs_rebuild_max_segment 1048576 zfs_reconstruct_indirect_combinations_max 4096 zfs_recover 0 zfs_recv_queue_ff 20 zfs_recv_queue_length 16777216 zfs_recv_write_batch_size 1048576 zfs_removal_ignore_errors 0 zfs_removal_suspend_progress 0 zfs_remove_max_segment 16777216 zfs_resilver_disable_defer 0 zfs_resilver_min_time_ms 3000 zfs_scan_checkpoint_intval 7200 zfs_scan_fill_weight 3 zfs_scan_ignore_errors 0 zfs_scan_issue_strategy 0 zfs_scan_legacy 0 zfs_scan_max_ext_gap 2097152 zfs_scan_mem_lim_fact 20 zfs_scan_mem_lim_soft_fact 20 zfs_scan_strict_mem_lim 0 zfs_scan_suspend_progress 0 zfs_scan_vdev_limit 4194304 zfs_scrub_min_time_ms 1000 zfs_send_corrupt_data 0 zfs_send_no_prefetch_queue_ff 20 zfs_send_no_prefetch_queue_length 1048576 zfs_send_queue_ff 20 zfs_send_queue_length 16777216 zfs_send_unmodified_spill_blocks 1 zfs_slow_io_events_per_second 20 zfs_spa_discard_memory_limit 16777216 zfs_special_class_metadata_reserve_pct 25 zfs_sync_pass_deferred_free 2 zfs_sync_pass_dont_compress 8 zfs_sync_pass_rewrite 2 zfs_sync_taskq_batch_pct 75 zfs_trim_extent_bytes_max 134217728 zfs_trim_extent_bytes_min 32768 zfs_trim_metaslab_skip 0 zfs_trim_queue_limit 10 zfs_trim_txg_batch 32 zfs_txg_history 100 zfs_txg_timeout 5 zfs_unflushed_log_block_max 262144 zfs_unflushed_log_block_min 1000 zfs_unflushed_log_block_pct 400 zfs_unflushed_max_mem_amt 1073741824 zfs_unflushed_max_mem_ppm 1000 zfs_unlink_suspend_progress 0 zfs_user_indirect_is_special 1 zfs_vdev_aggregate_trim 0 zfs_vdev_aggregation_limit 1048576 zfs_vdev_aggregation_limit_non_rotating 131072 zfs_vdev_async_read_max_active 3 zfs_vdev_async_read_min_active 1 zfs_vdev_async_write_active_max_dirty_percent 60 zfs_vdev_async_write_active_min_dirty_percent 30 zfs_vdev_async_write_max_active 10 zfs_vdev_async_write_min_active 2 zfs_vdev_cache_bshift 16 zfs_vdev_cache_max 16384 zfs_vdev_cache_size 0 zfs_vdev_default_ms_count 200 zfs_vdev_default_ms_shift 29 zfs_vdev_initializing_max_active 1 zfs_vdev_initializing_min_active 1 zfs_vdev_max_active 1000 zfs_vdev_max_auto_ashift 16 zfs_vdev_min_auto_ashift 9 zfs_vdev_min_ms_count 16 zfs_vdev_mirror_non_rotating_inc 0 zfs_vdev_mirror_non_rotating_seek_inc 1 zfs_vdev_mirror_rotating_inc 0 zfs_vdev_mirror_rotating_seek_inc 5 zfs_vdev_mirror_rotating_seek_offset 1048576 zfs_vdev_ms_count_limit 131072 zfs_vdev_nia_credit 5 zfs_vdev_nia_delay 5 zfs_vdev_queue_depth_pct 1000 zfs_vdev_raidz_impl cycle [fastest] original scalar zfs_vdev_read_gap_limit 32768 zfs_vdev_rebuild_max_active 3 zfs_vdev_rebuild_min_active 1 zfs_vdev_removal_max_active 2 zfs_vdev_removal_min_active 1 zfs_vdev_scheduler unused zfs_vdev_scrub_max_active 3 zfs_vdev_scrub_min_active 1 zfs_vdev_sync_read_max_active 10 zfs_vdev_sync_read_min_active 10 zfs_vdev_sync_write_max_active 10 zfs_vdev_sync_write_min_active 10 zfs_vdev_trim_max_active 2 zfs_vdev_trim_min_active 1 zfs_vdev_write_gap_limit 4096 zfs_vnops_read_chunk_size 1048576 zfs_zevent_cols 80 zfs_zevent_console 0 zfs_zevent_len_max 2304 zfs_zevent_retain_expire_secs 900 zfs_zevent_retain_max 2000 zfs_zil_clean_taskq_maxalloc 1048576 zfs_zil_clean_taskq_minalloc 1024 zfs_zil_clean_taskq_nthr_pct 100 zil_maxblocksize 131072 zil_nocacheflush 0 zil_replay_disable 0 zil_slog_bulk 786432 zio_deadman_log_all 0 zio_dva_throttle_enabled 1 zio_requeue_io_start_cut_in_line 1 zio_slow_io_ms 30000 zio_taskq_batch_pct 75 zvol_inhibit_dev 0 zvol_major 230 zvol_max_discard_blocks 16384 zvol_prefetch_bytes 131072 zvol_request_sync 0 zvol_threads 32 zvol_volmode 1 VDEV cache disabled, skipping section ZIL committed transactions: 0 Commit requests: 45 Flushes to stable storage: 45 Transactions to SLOG storage pool: 0 Bytes 0 Transactions to non-SLOG storage pool: 0 Bytes 0