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- ZFS Subsystem Report Sun Sep 15 17:29:03 2024
- Linux 6.8.0-44-generic 2.2.2-0ubuntu9
- Machine: mediamouse (x86_64) 2.2.2-0ubuntu9
- ARC status: HEALTHY
- Memory throttle count: 0
- ARC size (current): 100.0 % 15.6 GiB
- Target size (adaptive): 100.0 % 15.6 GiB
- Min size (hard limit): 6.2 % 999.4 MiB
- Max size (high water): 16:1 15.6 GiB
- Anonymous data size: 0.0 % 0 Bytes
- Anonymous metadata size: 0.0 % 0 Bytes
- MFU data target: 45.4 % 7.0 GiB
- MFU data size: 46.7 % 7.2 GiB
- MFU ghost data size: 4.1 GiB
- MFU metadata target: 2.4 % 376.3 MiB
- MFU metadata size: 1.8 % 285.6 MiB
- MFU ghost metadata size: 0 Bytes
- MRU data target: 49.9 % 7.7 GiB
- MRU data size: 51.3 % 7.9 GiB
- MRU ghost data size: 3.8 GiB
- MRU metadata target: 2.4 % 376.3 MiB
- MRU metadata size: 0.2 % 31.5 MiB
- MRU ghost metadata size: 0 Bytes
- Uncached data size: 0.0 % 0 Bytes
- Uncached metadata size: 0.0 % 0 Bytes
- Bonus size: 0.2 % 26.4 MiB
- Dnode cache target: 10.0 % 1.6 GiB
- Dnode cache size: 3.8 % 61.5 MiB
- Dbuf size: 0.2 % 24.6 MiB
- Header size: 0.1 % 9.8 MiB
- L2 header size: 0.1 % 9.8 MiB
- ABD chunk waste size: < 0.1 % 380.5 KiB
- ARC hash breakdown:
- Elements max: 151.2k
- Elements current: 97.9 % 148.1k
- Collisions: 57.8k
- Chain max: 3
- Chains: 2.5k
- ARC misc:
- Deleted: 1.1M
- Mutex misses: 168
- Eviction skips: 163
- Eviction skips due to L2 writes: 0
- L2 cached evictions: 541.2 GiB
- L2 eligible evictions: 643.5 GiB
- L2 eligible MFU evictions: 19.3 % 124.0 GiB
- L2 eligible MRU evictions: 80.7 % 519.5 GiB
- L2 ineligible evictions: 11.0 GiB
- ARC total accesses: 75.3M
- Total hits: 98.7 % 74.3M
- Total I/O hits: < 0.1 % 32.5k
- Total misses: 1.2 % 939.1k
- ARC demand data accesses: 48.9 % 36.8M
- Demand data hits: 99.7 % 36.7M
- Demand data I/O hits: < 0.1 % 18.3k
- Demand data misses: 0.3 % 106.4k
- ARC demand metadata accesses: 49.7 % 37.4M
- Demand metadata hits: 100.0 % 37.4M
- Demand metadata I/O hits: < 0.1 % 3.3k
- Demand metadata misses: < 0.1 % 11.0k
- ARC prefetch data accesses: 1.2 % 922.3k
- Prefetch data hits: 11.5 % 106.1k
- Prefetch data I/O hits: 0.1 % 727
- Prefetch data misses: 88.4 % 815.4k
- ARC prefetch metadata accesses: 0.2 % 143.1k
- Prefetch metadata hits: 88.5 % 126.6k
- Prefetch metadata I/O hits: 7.1 % 10.2k
- Prefetch metadata misses: 4.4 % 6.3k
- ARC predictive prefetches: 100.0 % 1.1M
- Demand hits after predictive: 94.5 % 1.0M
- Demand I/O hits after predictive: 1.8 % 19.4k
- Never demanded after predictive: 3.6 % 38.9k
- ARC prescient prefetches: < 0.1 % 96
- Demand hits after prescient: 88.5 % 85
- Demand I/O hits after prescient: 11.5 % 11
- Never demanded after prescient: 0.0 % 0
- ARC states hits of all accesses:
- Most frequently used (MFU): 74.5 % 56.1M
- Most recently used (MRU): 24.2 % 18.2M
- Most frequently used (MFU) ghost: 0.1 % 38.0k
- Most recently used (MRU) ghost: 0.1 % 39.2k
- Uncached: 0.0 % 0
- DMU predictive prefetcher calls: 1.9M
- Stream hits: 91.5 % 1.7M
- Stream misses: 8.5 % 160.8k
- Streams limit reached: 55.0 % 88.3k
- Prefetches issued 915.5k
- L2ARC status: HEALTHY
- Low memory aborts: 0
- Free on write: 564
- R/W clashes: 0
- Bad checksums: 0
- Read errors: 0
- Write errors: 0
- L2ARC size (adaptive): 115.0 GiB
- Compressed: 95.4 % 109.7 GiB
- Header size: < 0.1 % 9.8 MiB
- MFU allocated size: 29.8 % 32.6 GiB
- MRU allocated size: 70.0 % 76.8 GiB
- Prefetch allocated size: 0.2 % 247.6 MiB
- Data (buffer content) allocated size: 99.9 % 109.6 GiB
- Metadata (buffer content) allocated size: 0.1 % 91.7 MiB
- L2ARC breakdown: 939.1k
- Hit ratio: 28.6 % 268.6k
- Miss ratio: 71.4 % 670.4k
- L2ARC I/O:
- Reads: 233.5 GiB 268.6k
- Writes: 367.0 GiB 44.5k
- L2ARC evicts:
- L1 cached: 26.2k
- While reading: 0
- Solaris Porting Layer (SPL):
- spl_hostid 0
- spl_hostid_path /etc/hostid
- spl_kmem_alloc_max 1048576
- 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 16384
- 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
- spl_taskq_thread_timeout_ms 10000
- 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
- dbuf_mutex_cache_shift 0
- ddt_zap_default_bs 15
- ddt_zap_default_ibs 15
- dmu_object_alloc_chunk_shift 7
- dmu_prefetch_max 134217728
- icp_aes_impl cycle [fastest] generic x86_64 aesni
- icp_gcm_avx_chunk_size 32736
- icp_gcm_impl cycle [fastest] avx generic pclmulqdq
- ignore_hole_birth 1
- l2arc_exclude_special 0
- 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 1048576
- 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_force_ganging_pct 3
- metaslab_fragmentation_factor_enabled 1
- metaslab_lba_weighting_enabled 1
- metaslab_preload_enabled 1
- metaslab_preload_limit 10
- metaslab_preload_pct 50
- 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
- spa_upgrade_errlog_limit 0
- vdev_file_logical_ashift 9
- vdev_file_physical_ashift 9
- vdev_removal_max_span 32768
- vdev_validate_skip 0
- zap_iterate_prefetch 1
- zap_micro_max_size 131072
- zfetch_max_distance 67108864
- zfetch_max_idistance 67108864
- zfetch_max_sec_reap 2
- zfetch_max_streams 8
- zfetch_min_distance 4194304
- zfetch_min_sec_reap 1
- zfs_abd_scatter_enabled 1
- zfs_abd_scatter_max_order 9
- 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_balance 500
- zfs_arc_min 0
- zfs_arc_min_prefetch_ms 0
- zfs_arc_min_prescient_prefetch_ms 0
- zfs_arc_pc_percent 0
- zfs_arc_prune_task_threads 1
- 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_bclone_enabled 0
- zfs_blake3_impl cycle [fastest] generic sse2 sse41 avx2
- zfs_brt_prefetch 1
- zfs_btree_verify_intensity 0
- 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_obsolete_pct 25
- 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_default_bs 9
- zfs_default_ibs 17
- zfs_delay_min_dirty_percent 60
- zfs_delay_scale 500000
- zfs_delete_blocks 20480
- zfs_dirty_data_max 3353324748
- 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 1
- zfs_embedded_slog_min_ms 64
- zfs_expire_snapshot 300
- zfs_fallocate_reserve_percent 110
- zfs_flags 0
- zfs_fletcher_4_impl [fastest] scalar superscalar superscalar4 sse2 ssse3 avx2
- 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_dataset_nesting 50
- 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 16777216
- zfs_metaslab_find_max_tries 100
- zfs_metaslab_fragmentation_threshold 70
- zfs_metaslab_max_size_cache_sec 3600
- zfs_metaslab_mem_limit 25
- zfs_metaslab_segment_weight_enabled 1
- zfs_metaslab_switch_threshold 2
- zfs_metaslab_try_hard_before_gang 0
- 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 30
- zfs_prefetch_disable 0
- zfs_read_history 0
- zfs_read_history_hits 0
- zfs_rebuild_max_segment 1048576
- zfs_rebuild_scrub_enabled 1
- zfs_rebuild_vdev_limit 67108864
- zfs_reconstruct_indirect_combinations_max 4096
- zfs_recover 0
- zfs_recv_best_effort_corrective 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_blkstats 0
- 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_report_txgs 0
- zfs_scan_strict_mem_lim 0
- zfs_scan_suspend_progress 0
- zfs_scan_vdev_limit 16777216
- zfs_scrub_error_blocks_per_txg 4096
- 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_sha256_impl cycle [fastest] generic x64 ssse3 avx avx2 shani
- zfs_sha512_impl cycle [fastest] generic x64 avx avx2
- zfs_slow_io_events_per_second 20
- zfs_snapshot_history_enabled 1
- 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_traverse_indirect_prefetch_limit 32
- 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 131072
- zfs_unflushed_log_block_min 1000
- zfs_unflushed_log_block_pct 400
- zfs_unflushed_log_txg_max 1000
- 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_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_def_queue_depth 32
- zfs_vdev_default_ms_count 200
- zfs_vdev_default_ms_shift 29
- zfs_vdev_failfast_mask 1
- zfs_vdev_initializing_max_active 1
- zfs_vdev_initializing_min_active 1
- zfs_vdev_max_active 1000
- zfs_vdev_max_auto_ashift 14
- zfs_vdev_max_ms_shift 34
- 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_open_timeout_ms 1000
- zfs_vdev_queue_depth_pct 1000
- zfs_vdev_raidz_impl cycle [fastest] original scalar sse2 ssse3 avx2
- 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_wrlog_data_max 6706649496
- zfs_xattr_compat 0
- zfs_zevent_len_max 512
- 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
- zfs_zil_saxattr 1
- zil_maxblocksize 131072
- zil_maxcopied 7680
- zil_min_commit_timeout 5000
- zil_nocacheflush 0
- zil_replay_disable 0
- zil_slog_bulk 67108864
- 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 80
- zio_taskq_batch_tpq 0
- zio_taskq_read fixed,1,8 null scale null
- zio_taskq_write batch fixed,1,5 scale fixed,1,5
- zstd_abort_size 131072
- zstd_earlyabort_pass 1
- zvol_blk_mq_blocks_per_thread 8
- zvol_blk_mq_queue_depth 128
- zvol_enforce_quotas 1
- zvol_inhibit_dev 0
- zvol_major 230
- zvol_max_discard_blocks 16384
- zvol_open_timeout_ms 1000
- zvol_prefetch_bytes 131072
- zvol_request_sync 0
- zvol_threads 0
- zvol_use_blk_mq 0
- zvol_volmode 1
- ZIL committed transactions: 0
- Commit requests: 0
- Flushes to stable storage: 0
- Transactions to SLOG storage pool: 0 Bytes 0
- Transactions to non-SLOG storage pool: 0 Bytes 0
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