------------------------------------------------------------------------ ZFS Subsystem Report Fri Mar 8 08:52:50 2013 ------------------------------------------------------------------------ System Information: Kernel Version: 901000 (osreldate) Hardware Platform: amd64 Processor Architecture: amd64 ZFS Storage pool Version: 28 ZFS Filesystem Version: 5 FreeBSD 9.1-RELEASE #0: Tue Jan 29 15:02:50 EST 2013 root 8:52dp up 1:04, 3 users, load averages: 0,04 0,11 0,21 ------------------------------------------------------------------------ System Memory: 4.65% 367.67 MiB Active, 1.23% 97.21 MiB Inact 16.78% 1.30 GiB Wired, 0.01% 688.00 KiB Cache 77.31% 5.97 GiB Free, 0.03% 2.03 MiB Gap Real Installed: 8.00 GiB Real Available: 99.69% 7.98 GiB Real Managed: 96.87% 7.73 GiB Logical Total: 8.00 GiB Logical Used: 24.15% 1.93 GiB Logical Free: 75.85% 6.07 GiB Kernel Memory: 898.47 MiB Data: 97.02% 871.69 MiB Text: 2.98% 26.79 MiB Kernel Memory Map: 7.68 GiB Size: 9.40% 738.61 MiB Free: 90.60% 6.96 GiB ------------------------------------------------------------------------ ARC Summary: (HEALTHY) Memory Throttle Count: 0 ARC Misc: Deleted: 7 Recycle Misses: 0 Mutex Misses: 0 Evict Skips: 0 ARC Size: 11.27% 775.92 MiB Target Size: (Adaptive) 100.00% 6.73 GiB Min Size (Hard Limit): 12.50% 860.87 MiB Max Size (High Water): 8:1 6.73 GiB ARC Size Breakdown: Recently Used Cache Size: 49.98% 3.36 GiB Frequently Used Cache Size: 50.02% 3.36 GiB ARC Hash Breakdown: Elements Max: 30.44k Elements Current: 99.99% 30.43k Collisions: 5.71k Chain Max: 4 Chains: 3.12k ------------------------------------------------------------------------ ARC Efficiency: 3.58m Cache Hit Ratio: 99.47% 3.56m Cache Miss Ratio: 0.53% 19.05k Actual Hit Ratio: 99.47% 3.56m Data Demand Efficiency: 99.78% 3.29m Data Prefetch Efficiency: 0.00% 41 CACHE HITS BY CACHE LIST: Most Recently Used: 3.50% 124.49k Most Frequently Used: 96.50% 3.44m Most Recently Used Ghost: 0.00% 8 Most Frequently Used Ghost: 0.00% 104 CACHE HITS BY DATA TYPE: Demand Data: 92.18% 3.28m Prefetch Data: 0.00% 0 Demand Metadata: 7.81% 278.25k Prefetch Metadata: 0.00% 60 CACHE MISSES BY DATA TYPE: Demand Data: 37.99% 7.24k Prefetch Data: 0.22% 41 Demand Metadata: 60.99% 11.62k Prefetch Metadata: 0.80% 153 ------------------------------------------------------------------------ L2ARC is disabled ------------------------------------------------------------------------ ------------------------------------------------------------------------ VDEV cache is disabled ------------------------------------------------------------------------ ZFS Tunables (sysctl): kern.maxusers 384 vm.kmem_size 8 295 280 640 vm.kmem_size_scale 1 vm.kmem_size_min 0 vm.kmem_size_max 329 853 485 875 vfs.zfs.l2c_only_size 0 vfs.zfs.mfu_ghost_data_lsize 32083968 vfs.zfs.mfu_ghost_metadata_lsize 9216 vfs.zfs.mfu_ghost_size 32093184 vfs.zfs.mfu_data_lsize 333764096 vfs.zfs.mfu_metadata_lsize 7120384 vfs.zfs.mfu_size 341402624 vfs.zfs.mru_ghost_data_lsize 135180800 vfs.zfs.mru_ghost_metadata_lsize 493056 vfs.zfs.mru_ghost_size 135673856 vfs.zfs.mru_data_lsize 242825728 vfs.zfs.mru_metadata_lsize 4150784 vfs.zfs.mru_size 369221632 vfs.zfs.anon_data_lsize 0 vfs.zfs.anon_metadata_lsize 0 vfs.zfs.anon_size 72192 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 1805384704 vfs.zfs.arc_meta_used 236972232 vfs.zfs.arc_min 902 692 352 vfs.zfs.arc_max 7 221 538 816 vfs.zfs.dedup.prefetch 1 vfs.zfs.mdcomp_disable 0 vfs.zfs.write_limit_override 0 vfs.zfs.write_limit_inflated 25690656768 vfs.zfs.write_limit_max 1070444032 vfs.zfs.write_limit_min 33554432 vfs.zfs.write_limit_shift 3 vfs.zfs.no_write_throttle 0 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 1 vfs.zfs.mg_alloc_failures 12 vfs.zfs.check_hostid 1 vfs.zfs.recover 0 vfs.zfs.txg.synctime_ms 1000 vfs.zfs.txg.timeout 5 vfs.zfs.vdev.cache.bshift 16 vfs.zfs.vdev.cache.size 0 vfs.zfs.vdev.cache.max 16 384 vfs.zfs.vdev.write_gap_limit 4096 vfs.zfs.vdev.read_gap_limit 32768 vfs.zfs.vdev.aggregation_limit 131072 vfs.zfs.vdev.ramp_rate 2 vfs.zfs.vdev.time_shift 6 vfs.zfs.vdev.min_pending 4 vfs.zfs.vdev.max_pending 10 vfs.zfs.vdev.bio_flush_disable 0 vfs.zfs.cache_flush_disable 0 vfs.zfs.zil_replay_disable 0 vfs.zfs.zio.use_uma 0 vfs.zfs.snapshot_list_prefetch 0 vfs.zfs.version.zpl 5 vfs.zfs.version.spa 28 vfs.zfs.version.acl 1 vfs.zfs.debug 0 vfs.zfs.super_owner 0 ------------------------------------------------------------------------