mirror_zfs/module/zfs
Tom Caputi 80a91e7469 Defer new resilvers until the current one ends
Currently, if a resilver is triggered for any reason while an
existing one is running, zfs will immediately restart the existing
resilver from the beginning to include the new drive. This causes
problems for system administrators when a drive fails while another
is already resilvering. In this case, the optimal thing to do to
reduce risk of data loss is to wait for the current resilver to end
before immediately replacing the second failed drive, which allows
the system to operate with two incomplete drives for the minimum
amount of time.

This patch introduces the resilver_defer feature that essentially
does this for the admin without forcing them to wait and monitor
the resilver manually. The change requires an on-disk feature
since we must mark drives that are part of a deferred resilver in
the vdev config to ensure that we do not assume they are done
resilvering when an existing resilver completes.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: @mmaybee 
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #7732
2018-10-18 21:06:18 -07:00
..
abd.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
aggsum.c Fix preemptible warning in aggsum_add() 2018-06-07 15:55:11 -07:00
arc.c Fix arc_release() refcount 2018-10-09 10:10:26 -07:00
blkptr.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
bplist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
bpobj.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
bptree.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
bqueue.c Call cv_signal() with mutex held 2017-06-26 14:36:49 -07:00
cityhash.c OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
dataset_kstats.c Introduce read/write kstats per dataset 2018-08-20 09:52:37 -07:00
dbuf_stats.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
dbuf.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
ddt_zap.c Update build system and packaging 2018-05-29 16:00:33 -07:00
ddt.c Update build system and packaging 2018-05-29 16:00:33 -07:00
dmu_diff.c Fix issues found with zfs diff 2018-05-01 11:24:20 -07:00
dmu_object.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dmu_objset.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dmu_recv.c Refactor dmu_recv into its own file 2018-10-09 14:05:13 -07:00
dmu_send.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dmu_traverse.c Fix traverse_impl() kmem leak 2018-08-15 09:53:44 -07:00
dmu_tx.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
dmu_zfetch.c Update build system and packaging 2018-05-29 16:00:33 -07:00
dmu.c OpenZFS 9689 - zfs range lock code should not be zpl-specific 2018-10-11 10:19:33 -07:00
dnode_sync.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dnode.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
dsl_bookmark.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
dsl_crypt.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dsl_dataset.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dsl_deadlist.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
dsl_deleg.c Update build system and packaging 2018-05-29 16:00:33 -07:00
dsl_destroy.c Add types to featureflags in zfs 2018-10-16 11:15:04 -07:00
dsl_dir.c zfs_ioc_unload_key can drop extra spa ref 2018-08-03 14:50:51 -07:00
dsl_pool.c OpenZFS 9617 - too-frequent TXG sync causes excessive write inflation 2018-10-04 13:13:28 -07:00
dsl_prop.c Update build system and packaging 2018-05-29 16:00:33 -07:00
dsl_scan.c Defer new resilvers until the current one ends 2018-10-18 21:06:18 -07:00
dsl_synctask.c OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
dsl_userhold.c OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
edonr_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
fm.c OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations 2018-07-30 11:30:03 -07:00
gzip.c Update build system and packaging 2018-05-29 16:00:33 -07:00
hkdf.c Encryption patch follow-up 2017-10-11 16:54:48 -04:00
lz4.c Fix LZ4_uncompress_unknownOutputSize caused panic 2017-05-19 13:45:46 -07:00
lzjb.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
Makefile.in Refactor dmu_recv into its own file 2018-10-09 14:05:13 -07:00
metaslab.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
mmp.c Update build system and packaging 2018-05-29 16:00:33 -07:00
multilist.c Update build system and packaging 2018-05-29 16:00:33 -07:00
pathname.c Update build system and packaging 2018-05-29 16:00:33 -07:00
policy.c Take user namespaces into account in policy checks 2018-03-07 15:40:42 -08:00
qat_compress.c Fix inst_num overflow in qat_crypt.c 2018-05-01 20:44:24 -07:00
qat_crypt.c Fix inst_num overflow in qat_crypt.c 2018-05-01 20:44:24 -07:00
qat.c SHA256 QAT acceleration 2018-03-15 10:53:58 -07:00
qat.h Resolve QAT issues with incompressible data 2018-03-29 17:40:34 -07:00
range_tree.c OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
refcount.c Add zfs_refcount_transfer_ownership_many() 2018-10-09 10:05:48 -07:00
rrwlock.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
sa.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
sha256.c SHA256 QAT acceleration 2018-03-15 10:53:58 -07:00
skein_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_checkpoint.c OpenZFS 9238 - ZFS Spacemap Encoding V2 2018-07-05 12:02:34 -07:00
spa_config.c OpenZFS 9591 - ms_shift can be incorrectly changed 2018-06-21 09:35:26 -07:00
spa_errlog.c Update build system and packaging 2018-05-29 16:00:33 -07:00
spa_history.c Create /proc/sys/kernel/spl/gitrev with git hash 2018-10-08 21:57:02 -07:00
spa_misc.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
spa_stats.c Fixes for procfs files backed by linked lists 2018-09-26 11:08:12 -07:00
spa.c Defer new resilvers until the current one ends 2018-10-18 21:06:18 -07:00
space_map.c OpenZFS 9442 - decrease indirect block size of spacemaps 2018-07-25 14:11:35 -07:00
space_reftree.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
THIRDPARTYLICENSE.cityhash OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
THIRDPARTYLICENSE.cityhash.descrip OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
trace.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
txg.c OpenZFS 9617 - too-frequent TXG sync causes excessive write inflation 2018-10-04 13:13:28 -07:00
uberblock.c OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
unique.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
vdev_cache.c Update build system and packaging 2018-05-29 16:00:33 -07:00
vdev_disk.c vdev_disk_error() prints ASCII SOH to debug log 2018-09-21 09:42:42 -07:00
vdev_file.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_indirect_births.c Update build system and packaging 2018-05-29 16:00:33 -07:00
vdev_indirect_mapping.c OpenZFS 9847 - leaking dd_clones (DMU_OT_DSL_CLONES) objects (#7979) 2018-10-12 11:28:26 -07:00
vdev_indirect.c Improved error handling for extreme rewinds 2018-10-12 11:24:04 -07:00
vdev_label.c Defer new resilvers until the current one ends 2018-10-18 21:06:18 -07:00
vdev_mirror.c Update build system and packaging 2018-05-29 16:00:33 -07:00
vdev_missing.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_queue.c Fixes for procfs files backed by linked lists 2018-09-26 11:08:12 -07:00
vdev_raidz_math_aarch64_neon_common.h ABD raidz NEON support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_aarch64_neon.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math_aarch64_neonx2.c ABD raidz NEON support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx2.c ABD raidz avx512f support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx512bw.c ABD: Adapt avx512bw raidz assembly 2016-12-15 17:31:33 -08:00
vdev_raidz_math_avx512f.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
vdev_raidz_math_impl.h codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math_scalar.c ABD Vectorized raidz 2016-11-29 14:34:33 -08:00
vdev_raidz_math_sse2.c ABD raidz avx512f support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_ssse3.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math.c Update build system and packaging 2018-05-29 16:00:33 -07:00
vdev_raidz.c OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_removal.c Improved error handling for extreme rewinds 2018-10-12 11:24:04 -07:00
vdev_root.c OpenZFS 9075 - Improve ZFS pool import/load process and corrupted pool recovery 2018-05-08 21:35:27 -07:00
vdev.c Defer new resilvers until the current one ends 2018-10-18 21:06:18 -07:00
zap_leaf.c OpenZFS 9328 - zap code can take advantage of c99 2018-05-31 10:53:11 -07:00
zap_micro.c OpenZFS 9329 - panic in zap_leaf_lookup() due to concurrent zapification 2018-05-31 10:53:49 -07:00
zap.c OpenZFS 9328 - zap code can take advantage of c99 2018-05-31 10:53:11 -07:00
zcp_get.c Fix coverity defects: zfs channel programs 2018-02-20 11:19:42 -08:00
zcp_global.c OpenZFS 8600 - ZFS channel programs - snapshot 2018-02-08 15:29:24 -08:00
zcp_iter.c OpenZFS 9337 - zfs get all is slow due to uncached metadata 2018-07-12 10:49:27 -07:00
zcp_synctask.c OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
zcp.c OpenZFS 9424 - ztest failure: "unprotected error in call to Lua API (Invalid value type 'function' for key 'error')" 2018-07-10 21:29:23 -07:00
zfeature.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
zfs_acl.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_byteswap.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_ctldir.c Prefix all refcount functions with zfs_ 2018-10-01 10:42:05 -07:00
zfs_debug.c Fixes for procfs files backed by linked lists 2018-09-26 11:08:12 -07:00
zfs_dir.c Linux does not HAVE_DNLC 2018-10-17 10:30:08 -07:00
zfs_fm.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_fuid.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_ioctl.c Linux does not HAVE_SMB_SHARE 2018-10-17 10:31:38 -07:00
zfs_log.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_onexit.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_ratelimit.c Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
zfs_replay.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_rlock.c OpenZFS 9689 - zfs range lock code should not be zpl-specific 2018-10-11 10:19:33 -07:00
zfs_sa.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_sysfs.c Fix small sysfs leak 2018-09-26 09:50:58 -07:00
zfs_vfsops.c Fix statfs(2) for 32-bit user space 2018-09-24 17:11:25 -07:00
zfs_vnops.c Linux does not HAVE_DNLC 2018-10-17 10:30:08 -07:00
zfs_znode.c Linux does not HAVE_SMB_SHARE 2018-10-17 10:31:38 -07:00
zil.c Refcounted DSL Crypto Key Mappings 2018-10-03 09:47:11 -07:00
zio_checksum.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
zio_compress.c OpenZFS 9403 - assertion failed in arc_buf_destroy() 2018-08-29 11:33:33 -07:00
zio_crypt.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zio_inject.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zio.c OpenZFS 9677 - panic from zio_write_gang_block() 2018-10-03 09:50:06 -07:00
zle.c Fix zle_decompress out of bound access 2018-02-09 10:08:05 -08:00
zpl_ctldir.c RHEL 7.5 compat: FMODE_KABI_ITERATE 2018-05-02 15:01:24 -07:00
zpl_export.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
zpl_file.c Direct IO support 2018-08-27 10:04:21 -07:00
zpl_inode.c Linux 4.18 compat: inode timespec -> timespec64 2018-06-19 21:51:18 -07:00
zpl_super.c Fix statfs(2) for 32-bit user space 2018-09-24 17:11:25 -07:00
zpl_xattr.c Add missing checks to zpl_xattr_* functions 2018-08-02 14:03:56 -07:00
zrlock.c Update build system and packaging 2018-05-29 16:00:33 -07:00
zthr.c OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
zvol.c OpenZFS 9689 - zfs range lock code should not be zpl-specific 2018-10-11 10:19:33 -07:00