7303 dynamic metaslab selection Reviewed by: Alex Reece <alex@delphix.com> Reviewed by: Chris Siden <christopher.siden@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com> Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Don Brady <don.brady@intel.com> Approved by: Richard Lowe <richlowe@richlowe.net>

7090 zfs should improve allocation order and throttle allocations Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Alex Reece <alex@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Sebastien Roy <sebastien.roy@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com>

5213 panic in metaslab_init due to space_map_open returning ENXIO Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Bayard Bell <Bayard.Bell@nexenta.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed by: Steven Hartland <steven.hartland@multiplay.co.uk> Approved by: Dan McDonald <danmcd@omniti.com>

4976 zfs should only avoid writing to a failing non-redundant top-level vdev 4977 mdb error in ::spa_space from space_cb() if a metaslab's ms_sm is NULL 4978 ztest fails in get_metaslab_refcount() 4979 extend free space histogram to device and pool 4980 metaslabs should have a fragmentation metric 4981 remove fragmented ops vector from block allocator 4982 space_map object should proactively upgrade when feature is enabled 4983 need to collect metaslab information via mdb 4984 device selection should use fragmentation metric Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Adam Leventhal <adam.leventhal@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

4101 metaslab_debug should allow for fine-grained control 4102 space_maps should store more information about themselves 4103 space map object blocksize should be increased 4104 ::spa_space no longer works 4105 removing a mirrored log device results in a leaked object 4106 asynchronously load metaslab Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Sebastien Roy <seb@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

3464 zfs synctask code needs restructuring Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

1051 zfs should handle imbalanced luns Reviewed by: Eric Schrock <Eric.Schrock@delphix.com> Reviewed by: Matt Ahrens <Matt.Ahrens@delphix.com> Reviewed by: Adam Leventhal <Adam.Leventhal@delphix.com> Reviewed by: Albert Lee <trisk@nexenta.com> Reviewed by: Gordon Ross <gwr@nexenta.com> Approved by: Garrett D'Amore <garrett@nexenta.com>

6675946 'zpool status' should show the progress of resilvering for individual disk. 6683750 scrub -s have to wait until resilver completed? 6841252 Resilvering not restartable - causing an excess reboot delay 6855073 spa scrub stats (eg %done) are reset on reboot 6891824 7410 NAS head "continually resilvering" following HDD replacement 6899970 scrub/resilver percent complete reporting in zpool status can be overly optimistic 6940889 add interval (count) args to zpool list 6944623 dbuf_read_done() locking performance improvement 6946760 mutex problem in bplist_enqueue() 6391915 RFE: provide interval arg to zpool status to monitor resilvering 6946512 want zfs_send() to pass back debug info 6943992 'zpool scrub' should not restart the existing scrub silently 6878281 zpool should store the time of last scrub/resilver and other zpool status info in pool properties. 6935158 Assertion failed: used <= spa_get_dspace(dd->dd_pool->dp_spa) 6944388 dsl_dataset_snapshot_reserve_space() causes dp_write_limit=max --HG-- rename : usr/src/uts/common/fs/zfs/dsl_scrub.c => usr/src/uts/common/fs/zfs/dsl_scan.c

6826241 Sync write IOPS drops dramatically during TXG sync 6869229 zfs should switch to shiny new metaslabs more frequently

6897958 ASSERT in metaslab_class_space_update() with 8+ exabyte pool 6898598 dsl needs to be more aware of dedup space

PSARC 2009/571 ZFS Deduplication Properties 6677093 zfs should have dedup capability

6574286 removing a slog doesn't work 6856566 zpool import -F can cause panic 6863456 system panic by load_nvlist(spa, spa->spa_config_object, &nv) == 0 while running zfs test suite 6882947 dump_nvlist() should live in libnvpair

6596237 Stop looking and start ganging

6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling 6667208 zfs/zpool commands on failed pool should not hang 6430480 grabbing config lock as writer during I/O load can take excessively long

PSARC 2007/171 ZFS Separate Intent Log 6339640 Make ZIL use NVRAM when available.

6341569 zio_alloc_blk() vdev distribution performs badly 6428639 large writes to zvol synchs too much, better cut down a little 6444692 Need to flush disk write cache for dmu_sync buffers 6465634 zvol: dmu_sync() should be issued in parallel 6468731 lwb_state_t can be nuked 6470042 parallel dmu_sync() isn't being used 6471679 stash blocksize in zvol_state_t rather than reading in every zvol_log_write 6472230 ZIL vdev management is inefficient 6473775 zil_commit changes in snv_48 make it hot for O_DSYNC workloads 6478388 ZIL replay takes too long causing issues while booting 6486390 zil_commit could push more transactions 6486496 zil_replay() useful debug

6410711 intent log blocks don't get invited to pool parties

6410698 ZFS metadata needs to be more highly replicated (ditto blocks) 6410700 zdb should support reading raw blocks out of storage pool 6410709 ztest: spa config can change before pool export

6280668 pluggable block allocation policy 6399301 initial read of space maps is super slow 6407365 large-sector disk support in ZFS 6407366 ADVANCE_NOLOCK gathers MOS 6407367 three-way deadlock between db_mtx, dbuf_hash[], and ms_lock

PSARC 2002/240 ZFS 6338653 Integrate ZFS PSARC 2004/652 - DKIOCFLUSH 5096886 Write caching disks need mechanism to flush cache to physical media