Created
September 18, 2014 15:06
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zfs-stats (http://www.freshports.org/sysutils/zfs-stats) of knew, my main storage server
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| [dan@knew:~] $ zfs-stats -a | |
| ------------------------------------------------------------------------ | |
| ZFS Subsystem Report Thu Sep 18 15:05:39 2014 | |
| ------------------------------------------------------------------------ | |
| System Information: | |
| Kernel Version: 903000 (osreldate) | |
| Hardware Platform: amd64 | |
| Processor Architecture: amd64 | |
| ZFS Storage pool Version: 5000 | |
| ZFS Filesystem Version: 5 | |
| FreeBSD 9.3-RELEASE-p2 #0: Mon Sep 15 16:44:27 UTC 2014 root | |
| 3:05PM up 21:40, 1 user, load averages: 5.03, 4.57, 4.41 | |
| ------------------------------------------------------------------------ | |
| System Memory: | |
| 1.93% 612.02 MiB Active, 1.47% 467.86 MiB Inact | |
| 23.93% 7.42 GiB Wired, 0.11% 36.09 MiB Cache | |
| 72.52% 22.50 GiB Free, 0.04% 12.28 MiB Gap | |
| Real Installed: 32.00 GiB | |
| Real Available: 99.92% 31.97 GiB | |
| Real Managed: 97.01% 31.02 GiB | |
| Logical Total: 32.00 GiB | |
| Logical Used: 28.16% 9.01 GiB | |
| Logical Free: 71.84% 22.99 GiB | |
| Kernel Memory: 5.30 GiB | |
| Data: 99.54% 5.27 GiB | |
| Text: 0.46% 24.97 MiB | |
| Kernel Memory Map: 6.74 GiB | |
| Size: 75.78% 5.11 GiB | |
| Free: 24.22% 1.63 GiB | |
| ------------------------------------------------------------------------ | |
| ARC Summary: (HEALTHY) | |
| Memory Throttle Count: 0 | |
| ARC Misc: | |
| Deleted: 7.16m | |
| Recycle Misses: 158.01k | |
| Mutex Misses: 1.72k | |
| Evict Skips: 29.49k | |
| ARC Size: 87.52% 5.25 GiB | |
| Target Size: (Adaptive) 89.10% 5.35 GiB | |
| Min Size (Hard Limit): 12.50% 768.00 MiB | |
| Max Size (High Water): 8:1 6.00 GiB | |
| ARC Size Breakdown: | |
| Recently Used Cache Size: 92.68% 4.95 GiB | |
| Frequently Used Cache Size: 7.32% 400.48 MiB | |
| ARC Hash Breakdown: | |
| Elements Max: 461.54k | |
| Elements Current: 95.12% 439.02k | |
| Collisions: 3.17m | |
| Chain Max: 9 | |
| Chains: 113.06k | |
| ------------------------------------------------------------------------ | |
| ARC Efficiency: 107.39m | |
| Cache Hit Ratio: 95.84% 102.92m | |
| Cache Miss Ratio: 4.16% 4.46m | |
| Actual Hit Ratio: 87.82% 94.31m | |
| Data Demand Efficiency: 99.61% 68.21m | |
| Data Prefetch Efficiency: 27.72% 4.30m | |
| CACHE HITS BY CACHE LIST: | |
| Anonymously Used: 7.97% 8.20m | |
| Most Recently Used: 9.46% 9.73m | |
| Most Frequently Used: 82.17% 84.57m | |
| Most Recently Used Ghost: 0.08% 77.24k | |
| Most Frequently Used Ghost: 0.32% 332.65k | |
| CACHE HITS BY DATA TYPE: | |
| Demand Data: 66.01% 67.94m | |
| Prefetch Data: 1.16% 1.19m | |
| Demand Metadata: 25.12% 25.85m | |
| Prefetch Metadata: 7.71% 7.93m | |
| CACHE MISSES BY DATA TYPE: | |
| Demand Data: 5.98% 266.81k | |
| Prefetch Data: 69.69% 3.11m | |
| Demand Metadata: 5.75% 256.65k | |
| Prefetch Metadata: 18.58% 829.72k | |
| ------------------------------------------------------------------------ | |
| L2ARC is disabled | |
| ------------------------------------------------------------------------ | |
| File-Level Prefetch: (HEALTHY) | |
| DMU Efficiency: 350.59m | |
| Hit Ratio: 88.60% 310.63m | |
| Miss Ratio: 11.40% 39.96m | |
| Colinear: 39.96m | |
| Hit Ratio: 0.04% 15.60k | |
| Miss Ratio: 99.96% 39.94m | |
| Stride: 303.51m | |
| Hit Ratio: 99.98% 303.47m | |
| Miss Ratio: 0.02% 45.53k | |
| DMU Misc: | |
| Reclaim: 39.94m | |
| Successes: 0.98% 390.61k | |
| Failures: 99.02% 39.55m | |
| Streams: 7.12m | |
| +Resets: 0.06% 4.43k | |
| -Resets: 99.94% 7.12m | |
| Bogus: 0 | |
| ------------------------------------------------------------------------ | |
| VDEV cache is disabled | |
| ------------------------------------------------------------------------ | |
| ZFS Tunables (sysctl): | |
| kern.maxusers 2382 | |
| vm.kmem_size 7516192768 | |
| vm.kmem_size_scale 1 | |
| vm.kmem_size_min 0 | |
| vm.kmem_size_max 329853485875 | |
| vfs.zfs.l2c_only_size 0 | |
| vfs.zfs.mfu_ghost_data_lsize 0 | |
| vfs.zfs.mfu_ghost_metadata_lsize 4256713216 | |
| vfs.zfs.mfu_ghost_size 4256713216 | |
| vfs.zfs.mfu_data_lsize 304692224 | |
| vfs.zfs.mfu_metadata_lsize 745283072 | |
| vfs.zfs.mfu_size 1115456000 | |
| vfs.zfs.mru_ghost_data_lsize 474313216 | |
| vfs.zfs.mru_ghost_metadata_lsize 1008868352 | |
| vfs.zfs.mru_ghost_size 1483181568 | |
| vfs.zfs.mru_data_lsize 3723192320 | |
| vfs.zfs.mru_metadata_lsize 464297984 | |
| vfs.zfs.mru_size 4218882048 | |
| vfs.zfs.anon_data_lsize 0 | |
| vfs.zfs.anon_metadata_lsize 0 | |
| vfs.zfs.anon_size 13666304 | |
| vfs.zfs.l2arc_norw 1 | |
| vfs.zfs.l2arc_feed_again 1 | |
| vfs.zfs.l2arc_noprefetch 1 | |
| vfs.zfs.l2arc_feed_min_ms 200 | |
| vfs.zfs.l2arc_feed_secs 1 | |
| vfs.zfs.l2arc_headroom 2 | |
| vfs.zfs.l2arc_write_boost 8388608 | |
| vfs.zfs.l2arc_write_max 8388608 | |
| vfs.zfs.arc_meta_limit 1610612736 | |
| vfs.zfs.arc_meta_used 1610699936 | |
| vfs.zfs.arc_min 805306368 | |
| vfs.zfs.arc_max 6442450944 | |
| vfs.zfs.dedup.prefetch 1 | |
| vfs.zfs.mdcomp_disable 0 | |
| vfs.zfs.nopwrite_enabled 1 | |
| vfs.zfs.zfetch.array_rd_sz 1048576 | |
| vfs.zfs.zfetch.block_cap 256 | |
| vfs.zfs.zfetch.min_sec_reap 2 | |
| vfs.zfs.zfetch.max_streams 8 | |
| vfs.zfs.prefetch_disable 0 | |
| vfs.zfs.no_scrub_prefetch 0 | |
| vfs.zfs.no_scrub_io 0 | |
| vfs.zfs.resilver_min_time_ms 3000 | |
| vfs.zfs.free_min_time_ms 1000 | |
| vfs.zfs.scan_min_time_ms 1000 | |
| vfs.zfs.scan_idle 50 | |
| vfs.zfs.scrub_delay 4 | |
| vfs.zfs.resilver_delay 2 | |
| vfs.zfs.top_maxinflight 32 | |
| vfs.zfs.write_to_degraded 0 | |
| vfs.zfs.mg_noalloc_threshold 0 | |
| vfs.zfs.condense_pct 200 | |
| vfs.zfs.metaslab.weight_factor_enable 0 | |
| vfs.zfs.metaslab.preload_enabled 1 | |
| vfs.zfs.metaslab.preload_limit 3 | |
| vfs.zfs.metaslab.unload_delay 8 | |
| vfs.zfs.metaslab.load_pct 50 | |
| vfs.zfs.metaslab.min_alloc_size 10485760 | |
| vfs.zfs.metaslab.df_free_pct 4 | |
| vfs.zfs.metaslab.df_alloc_threshold 131072 | |
| vfs.zfs.metaslab.debug_unload 0 | |
| vfs.zfs.metaslab.debug_load 0 | |
| vfs.zfs.metaslab.gang_bang 131073 | |
| vfs.zfs.check_hostid 1 | |
| vfs.zfs.spa_asize_inflation 24 | |
| vfs.zfs.deadman_enabled 1 | |
| vfs.zfs.deadman_checktime_ms 5000 | |
| vfs.zfs.deadman_synctime_ms 1000000 | |
| vfs.zfs.recover 0 | |
| vfs.zfs.txg.timeout 5 | |
| vfs.zfs.min_auto_ashift 9 | |
| vfs.zfs.max_auto_ashift 13 | |
| vfs.zfs.vdev.cache.bshift 16 | |
| vfs.zfs.vdev.cache.size 0 | |
| vfs.zfs.vdev.cache.max 16384 | |
| vfs.zfs.vdev.trim_on_init 1 | |
| vfs.zfs.vdev.write_gap_limit 4096 | |
| vfs.zfs.vdev.read_gap_limit 32768 | |
| vfs.zfs.vdev.aggregation_limit 131072 | |
| vfs.zfs.vdev.scrub_max_active 2 | |
| vfs.zfs.vdev.scrub_min_active 1 | |
| vfs.zfs.vdev.async_write_max_active 10 | |
| vfs.zfs.vdev.async_write_min_active 1 | |
| vfs.zfs.vdev.async_read_max_active 3 | |
| vfs.zfs.vdev.async_read_min_active 1 | |
| vfs.zfs.vdev.sync_write_max_active 10 | |
| vfs.zfs.vdev.sync_write_min_active 10 | |
| vfs.zfs.vdev.sync_read_max_active 10 | |
| vfs.zfs.vdev.sync_read_min_active 10 | |
| vfs.zfs.vdev.max_active 1000 | |
| vfs.zfs.vdev.bio_delete_disable 0 | |
| vfs.zfs.vdev.bio_flush_disable 0 | |
| vfs.zfs.vdev.trim_max_pending 64 | |
| vfs.zfs.vdev.trim_max_bytes 2147483648 | |
| vfs.zfs.cache_flush_disable 0 | |
| vfs.zfs.zil_replay_disable 0 | |
| vfs.zfs.sync_pass_rewrite 2 | |
| vfs.zfs.sync_pass_dont_compress 5 | |
| vfs.zfs.sync_pass_deferred_free 2 | |
| vfs.zfs.zio.use_uma 0 | |
| vfs.zfs.snapshot_list_prefetch 0 | |
| vfs.zfs.version.ioctl 3 | |
| vfs.zfs.version.zpl 5 | |
| vfs.zfs.version.spa 5000 | |
| vfs.zfs.version.acl 1 | |
| vfs.zfs.debug 0 | |
| vfs.zfs.super_owner 0 | |
| vfs.zfs.trim.enabled 1 | |
| vfs.zfs.trim.max_interval 1 | |
| vfs.zfs.trim.timeout 30 | |
| vfs.zfs.trim.txg_delay 32 | |
| ------------------------------------------------------------------------ | |
| [dan@knew:~] $ |
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