------------------------------------------------------------------------ ZFS Subsystem Report Tue Mar 12 13:58:50 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 1:58od up 4:49, 2 users, load averages: 0,31 0,42 0,43 ------------------------------------------------------------------------ System Memory: 14.45% 1.12 GiB Active, 9.13% 721.98 MiB Inact 33.54% 2.59 GiB Wired, 1.64% 129.67 MiB Cache 41.22% 3.18 GiB Free, 0.02% 1.83 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: 49.80% 3.98 GiB Logical Free: 50.20% 4.02 GiB Kernel Memory: 2.20 GiB Data: 98.79% 2.17 GiB Text: 1.21% 27.21 MiB Kernel Memory Map: 11.72 GiB Size: 17.35% 2.03 GiB Free: 82.65% 9.69 GiB ------------------------------------------------------------------------ ARC Summary: (HEALTHY) Memory Throttle Count: 0 ARC Misc: Deleted: 7 Recycle Misses: 0 Mutex Misses: 0 Evict Skips: 0 ARC Size: 26.23% 1.76 GiB Target Size: (Adaptive) 100.00% 6.73 GiB Min Size (Hard Limit): 14.87% 1.00 GiB Max Size (High Water): 6:1 6.73 GiB ARC Size Breakdown: Recently Used Cache Size: 49.86% 3.35 GiB Frequently Used Cache Size: 50.14% 3.37 GiB ARC Hash Breakdown: Elements Max: 56.27k Elements Current: 99.99% 56.27k Collisions: 60.27k Chain Max: 6 Chains: 9.13k ------------------------------------------------------------------------ ARC Efficiency: 1.97m Cache Hit Ratio: 98.57% 1.94m Cache Miss Ratio: 1.43% 28.05k Actual Hit Ratio: 98.57% 1.94m Data Demand Efficiency: 99.14% 1.65m Data Prefetch Efficiency: 0.00% 22 CACHE HITS BY CACHE LIST: Most Recently Used: 12.03% 233.23k Most Frequently Used: 87.96% 1.70m Most Recently Used Ghost: 0.00% 42 Most Frequently Used Ghost: 0.04% 736 CACHE HITS BY DATA TYPE: Demand Data: 84.32% 1.63m Prefetch Data: 0.00% 0 Demand Metadata: 15.67% 303.77k Prefetch Metadata: 0.00% 86 CACHE MISSES BY DATA TYPE: Demand Data: 50.57% 14.19k Prefetch Data: 0.08% 22 Demand Metadata: 48.89% 13.71k Prefetch Metadata: 0.46% 128 ------------------------------------------------------------------------ L2ARC is disabled ------------------------------------------------------------------------ ------------------------------------------------------------------------ VDEV Cache Summary: 16.59k Hit Ratio: 43.35% 7.19k Miss Ratio: 49.69% 8.24k Delegations: 6.96% 1.16k ------------------------------------------------------------------------ ZFS Tunables (sysctl): kern.maxusers 384 vm.kmem_size 12884901888 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 932378112 vfs.zfs.mfu_ghost_metadata_lsize 497664 vfs.zfs.mfu_ghost_size 932875776 vfs.zfs.mfu_data_lsize 936417280 vfs.zfs.mfu_metadata_lsize 7947264 vfs.zfs.mfu_size 944669696 vfs.zfs.mru_ghost_data_lsize 1362316800 vfs.zfs.mru_ghost_metadata_lsize 3004416 vfs.zfs.mru_ghost_size 1365321216 vfs.zfs.mru_data_lsize 669315072 vfs.zfs.mru_metadata_lsize 22260224 vfs.zfs.mru_size 839019008 vfs.zfs.anon_data_lsize 0 vfs.zfs.anon_metadata_lsize 0 vfs.zfs.anon_size 64512 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 1805271040 vfs.zfs.arc_meta_used 288351088 vfs.zfs.arc_min 1073741824 vfs.zfs.arc_max 7221084160 vfs.zfs.dedup.prefetch 1 vfs.zfs.mdcomp_disable 0 vfs.zfs.write_limit_override 0 vfs.zfs.write_limit_inflated 25689292800 vfs.zfs.write_limit_max 1070387200 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 83886080 vfs.zfs.vdev.cache.max 125829120 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 ------------------------------------------------------------------------