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* Multi-modifier protection (MMP)Olaf Faaland2017-07-133-5/+104
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add multihost=on|off pool property to control MMP. When enabled a new thread writes uberblocks to the last slot in each label, at a set frequency, to indicate to other hosts the pool is actively imported. These uberblocks are the last synced uberblock with an updated timestamp. Property defaults to off. During tryimport, find the "best" uberblock (newest txg and timestamp) repeatedly, checking for change in the found uberblock. Include the results of the activity test in the config returned by tryimport. These results are reported to user in "zpool import". Allow the user to control the period between MMP writes, and the duration of the activity test on import, via a new module parameter zfs_multihost_interval. The period is specified in milliseconds. The activity test duration is calculated from this value, and from the mmp_delay in the "best" uberblock found initially. Add a kstat interface to export statistics about Multiple Modifier Protection (MMP) updates. Include the last synced txg number, the timestamp, the delay since the last MMP update, the VDEV GUID, the VDEV label that received the last MMP update, and the VDEV path. Abbreviated output below. $ cat /proc/spl/kstat/zfs/mypool/multihost 31 0 0x01 10 880 105092382393521 105144180101111 txg timestamp mmp_delay vdev_guid vdev_label vdev_path 20468 261337 250274925 68396651780 3 /dev/sda 20468 261339 252023374 6267402363293 1 /dev/sdc 20468 261340 252000858 6698080955233 1 /dev/sdx 20468 261341 251980635 783892869810 2 /dev/sdy 20468 261342 253385953 8923255792467 3 /dev/sdd 20468 261344 253336622 042125143176 0 /dev/sdab 20468 261345 253310522 1200778101278 2 /dev/sde 20468 261346 253286429 0950576198362 2 /dev/sdt 20468 261347 253261545 96209817917 3 /dev/sds 20468 261349 253238188 8555725937673 3 /dev/sdb Add a new tunable zfs_multihost_history to specify the number of MMP updates to store history for. By default it is set to zero meaning that no MMP statistics are stored. When using ztest to generate activity, for automated tests of the MMP function, some test functions interfere with the test. For example, the pool is exported to run zdb and then imported again. Add a new ztest function, "-M", to alter ztest behavior to prevent this. Add new tests to verify the new functionality. Tests provided by Giuseppe Di Natale. Reviewed by: Matthew Ahrens <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Ned Bass <[email protected]> Reviewed-by: Andreas Dilger <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #745 Closes #6279
* Add port of FreeBSD 'volmode' propertyLOLi2017-07-122-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | The volmode property may be set to control the visibility of ZVOL block devices. This allow switching ZVOL between three modes: full - existing fully functional behaviour (default) dev - hide partitions on ZVOL block devices none - not exposing volumes outside ZFS Additionally the new zvol_volmode module parameter can be used to control the default behaviour. This functionality can be used, for instance, on "backup" pools to avoid cluttering /dev with unneeded zd* devices. Original-patch-by: mav <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: loli10K <[email protected]> Signed-off-by: loli10K <[email protected]> FreeBSD-commit: https://github.com/freebsd/freebsd/commit/dd28e6bb Closes #1796 Closes #3438 Closes #6233
* OpenZFS 8067 - zdb should be able to dump literal embedded block pointerMatthew Ahrens2017-07-071-2/+10
| | | | | | | | | | | | | | Authored by: Matthew Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Yuri Pankov <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8067 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/8173085 Closes #6319
* Implemented zpool scrub pause/resumeAlek P2017-07-061-6/+17
| | | | | | | | | | | | | | | | | | Currently, there is no way to pause a scrub. Pausing may be useful when the pool is busy with other I/O to preserve bandwidth. This patch adds the ability to pause and resume scrubbing. This is achieved by maintaining a persistent on-disk scrub state. While the state is 'paused' we do not scrub any more blocks. We do however perform regular scan housekeeping such as freeing async destroyed and deadlist blocks while paused. Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Thomas Caputi <[email protected]> Reviewed-by: Serapheim Dimitropoulos <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Alek Pinchuk <[email protected]> Closes #6167
* Convert man zfs.8 to mdoc (OpenZFS sync)Brian Behlendorf2017-06-291-3800/+3923
| | | | | | | | | | * Fixed some typos * Additional description for some commands arguments * Text reworked to be in sync with OpenZFS * Added Linux as .Os type Reviewed-by: George Melikov <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #6282
* Convert man zpool.8 to mdoc (OpenZFS sync)George Melikov2017-06-281-2653/+2242
| | | | | | | | | | | | | | | * Fixed some typos * Additional description for some commands arguments * `listsnapshots` remained * Text reworked to be in sync with OpenZFS * Added Linux as .Os type * Updated `zpool events` section. * Updated `zpool iostat|status -c` sections * Added zed(8) reference to SEE ALSO Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: George Melikov <[email protected]> Closes #6245
* Inject zinject(8) a percentage amount of dev errsDon Brady2017-06-161-3/+3
| | | | | | | | | | | In the original form of device error injection, it was an all or nothing situation. To help simulate intermittent error conditions, you can now specify a real number percentage value. This is also very useful for our ZFS fault diagnosis testing and for injecting intermittent errors during load testing. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Don Brady <[email protected]> Closes #6227
* Fix manual description of zfs_arc_dnode_limitchrisrd2017-06-141-1/+1
| | | | | | | | | In arc_evict_state() we start pruning when arc_dnode_size > arc_dnode_limit, i.e. arc_dnode_limit is a ceiling rather than a floor. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chris Dunlop <[email protected]> Closes #6228
* OpenZFS 7578 - Fix/improve some aspects of ZIL writingGiuseppe Di Natale2017-06-091-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - After some ZIL changes 6 years ago zil_slog_limit got partially broken due to zl_itx_list_sz not updated when async itx'es upgraded to sync. Actually because of other changes about that time zl_itx_list_sz is not really required to implement the functionality, so this patch removes some unneeded broken code and variables. - Original idea of zil_slog_limit was to reduce chance of SLOG abuse by single heavy logger, that increased latency for other (more latency critical) loggers, by pushing heavy log out into the main pool instead of SLOG. Beside huge latency increase for heavy writers, this implementation caused double write of all data, since the log records were explicitly prepared for SLOG. Since we now have I/O scheduler, I've found it can be much more efficient to reduce priority of heavy logger SLOG writes from ZIO_PRIORITY_SYNC_WRITE to ZIO_PRIORITY_ASYNC_WRITE, while still leave them on SLOG. - Existing ZIL implementation had problem with space efficiency when it has to write large chunks of data into log blocks of limited size. In some cases efficiency stopped to almost as low as 50%. In case of ZIL stored on spinning rust, that also reduced log write speed in half, since head had to uselessly fly over allocated but not written areas. This change improves the situation by offloading problematic operations from z*_log_write() to zil_lwb_commit(), which knows real situation of log blocks allocation and can split large requests into pieces much more efficiently. Also as side effect it removes one of two data copy operations done by ZIL code WR_COPIED case. - While there, untangle and unify code of z*_log_write() functions. Also zfs_log_write() alike to zvol_log_write() can now handle writes crossing block boundary, that may also improve efficiency if ZPL is made to do that. Sponsored by: iXsystems, Inc. Authored by: Alexander Motin <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: Andriy Gapon <[email protected]> Reviewed by: Steven Hartland <[email protected]> Reviewed by: Brad Lewis <[email protected]> Reviewed by: Richard Elling <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Richard Yao <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7578 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/aeb13ac Closes #6191
* zpool iostat/status -c improvementsGiuseppe Di Natale2017-06-051-17/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Users can now provide their own scripts to be run with 'zpool iostat/status -c'. User scripts should be placed in ~/.zpool.d to be included in zpool's default search path. Provide a script which can be used with 'zpool iostat|status -c' that will return the type of device (hdd, sdd, file). Provide a script to get various values from smartctl when using 'zpool iostat/status -c'. Allow users to define the ZPOOL_SCRIPTS_PATH environment variable which can be used to override the default 'zpool iostat/status -c' search path. Allow the ZPOOL_SCRIPTS_ENABLED environment variable to enable or disable 'zpool status/iostat -c' functionality. Use the new smart script to provide the serial command. Install /etc/sudoers.d/zfs file which contains the sudoer rule for smartctl as a sample. Allow 'zpool iostat/status -c' tests to run in tree. Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Giuseppe Di Natale <[email protected]> Closes #6121 Closes #6153
* Implemented zpool sync commandAlek P2017-05-191-1/+21
| | | | | | | | | | | This addition will enable us to sync an open TXG to the main pool on demand. The functionality is similar to 'sync(2)' but 'zpool sync' will return when data has hit the main storage instead of potentially just the ZIL as is the case with the 'sync(2)' cmd. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Signed-off-by: Alek Pinchuk <[email protected]> Closes #6122
* Force fault a vdev with 'zpool offline -f'Tony Hutter2017-05-191-3/+11
| | | | | | | | | | | | | This patch adds a '-f' option to 'zpool offline' to fault a vdev instead of bringing it offline. Unlike the OFFLINE state, the FAULTED state will trigger the FMA code, allowing for things like autoreplace and triggering the slot fault LED. The -f faults persist across imports, unless they were set with the temporary (-t) flag. Both persistent and temporary faults can be cleared with zpool clear. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #6094
* Add property overriding (-o|-x) to 'zfs receive'LOLi2017-05-091-4/+42
| | | | | | | | | | | | | | | | | | | | This allows users to specify "-o property=value" to override and "-x property" to exclude properties when receiving a zfs send stream. Both native and user properties can be specified. This is useful when using zfs send/receive for periodic backup/replication because it lets users change properties such as canmount, mountpoint, or compression without modifying the source. References: https://www.illumos.org/issues/2745 https://www.illumos.org/issues/3753 Reviewed by: Matthew Ahrens <[email protected]> Reviewed-by: Alek Pinchuk <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #1350 Closes #5349
* Make createtxg and guid properties publicChristian Schwarz2017-05-091-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Document the existence of `createtxg` and `guid` native properties in man pages and zfs command output. One of the great features of ZFS is incremental replication of snapshots, possibly between pools on different machines. Shell scripts are commonly used to auomate this procedure. They have to find the most recent common snapshot between both sides and then perform incremental send & recv. Currently, scripts rely on the sorting order of `zfs list`, which defaults to `createtxg`, and the assumption that snapshot names on either side do not change. By making `createtxg` and `guid` part of the public ZFS interface, scripts are enabled to use a) `createtxg` to determine the logical & temporal order of snapshots (the creation property is not an equivalent substitute since multiple snapshots may be created within one second) b) `guid` to uniquely identify a snapshot, independent of its current display name This has the potential of making scripts safer and correct. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: DHE <[email protected]> Reviewed-by: Richard Laager <[email protected]> Signed-off-by: Christian Schwarz <[email protected]> Closes #6102
* Default to zvol_request_async=0Brian Behlendorf2017-05-041-1/+1
| | | | | | | | | Change the default ZVOL behavior so requests are handled asynchronously. This behavior is functionally the same as in the zfs-0.6.4 release. Reviewed-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #5902
* More ashift improvementsLOLi2017-05-031-20/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | This commit allow higher ashift values (up to 16) in 'zpool create' The ashift value was previously limited to 13 (8K block) in b41c990 because the limited number of uberblocks we could fit in the statically sized (128K) vdev label ring buffer could prevent the ability the safely roll back a pool to recover it. Since b02fe35 the largest uberblock size we support is 8K: this allow us to store a minimum number of 16 uberblocks in the vdev label, even with higher ashift values. Additionally change 'ashift' pool property behaviour: if set it will be used as the default hint value in subsequent vdev operations ('zpool add', 'attach' and 'replace'). A custom ashift value can still be specified from the command line, if desired. Finally, fix a bug in add-o_ashift.ksh caused by a missing variable. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #2024 Closes #4205 Closes #4740 Closes #5763
* Allow scaling of arc in proportion to pagecacheDebabrata Banerjee2017-05-021-0/+18
| | | | | | | | | | | | | | | When multiple filesystems are in use, memory pressure causes arc_cache to collapse to a minimum. Allow arc_cache to maintain proportional size even when hit rates are disproportionate. We do this only via evictable size from the kernel shrinker, thus it's only in effect under memory pressure. AKAMAI: zfs: CR 3695072 Reviewed-by: Tim Chase <[email protected]> Reviewed-by: Richard Yao <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Debabrata Banerjee <[email protected]> Closes #6035
* Reinstate zvol_taskq to fix aio on zvolChunwei Chen2017-04-261-0/+25
| | | | | | | | | | | | | | | | | | | | | | | Commit 37f9dac removed the zvol_taskq for processing zvol requests. This was removed as part of switching to make_request_fn and was motivated by a concern at the time over dispatch latency. However, this also made all bio request synchronous, and caused serious performance issues as the bio submitter would wait for every bio it submitted, effectively making the IO depth 1. This patch reinstate zvol_taskq, and to make sure overlapped I/Os are ordered properly, we take range lock in zvol_request, and pass it along with bio to the I/O functions zvol_{write,discard,read}. In order to facilitate benchmarks a zvol_request_sync module option was added to switch between sync and async request handling. For the moment, the default behavior is synchronous but this is likely to change pending additional testing. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #5824
* Update documentation for zfs_vdev_queue_depth_pctTim Chase2017-04-261-2/+10
| | | | | | | | | | | | | It was documented as being related to zfs_vdev_async_max_active when it is actually related to zfs_vdev_async_write_max_active. Also, expand the documentation to describe the allocation throttle which was introduced as part of OpenZFS 7090 in 3dfb57a. Reviewed-by: Richard Yao <[email protected]> Reviewed-by: Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tim Chase <[email protected]> Closes #6064
* OpenZFS 7252 - compressed zfs send / receiveDan Kimmel2017-04-261-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OpenZFS 7252 - compressed zfs send / receive OpenZFS 7628 - create long versions of ZFS send / receive options Authored by: Dan Kimmel <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: John Kennedy <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Reviewed by: Sebastien Roy <[email protected]> Reviewed by: David Quigley <[email protected]> Reviewed by: Thomas Caputi <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed by: David Quigley <[email protected]> Reviewed-by: loli10K <[email protected]> Ported-by: bunder2015 <[email protected]> Ported-by: Don Brady <[email protected]> Ported-by: Brian Behlendorf <[email protected]> Porting Notes: - Most of 7252 was already picked up during ABD work. This commit represents the gap from the final commit to openzfs. - Fixed split_large_blocks check in do_dump() - An alternate version of the write_compressible() function was implemented for Linux which does not depend on fio. The behavior of fio differs significantly based on the exact version. - mkholes was replaced with truncate for Linux. OpenZFS-issue: https://www.illumos.org/issues/7252 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/5602294 Closes #6067
* Fix typo in zfs-module-parameters man pagebunder20152017-04-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix typo in zfs-module-parameters man page Reviewed-by: Richard Laager <[email protected]> Reviewed-by: Mike McQuaid <[email protected]> Reviewed-by: Paul Dagnelie <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Gvozden Neskovic <[email protected]> Reviewed-by: Neal Gompa <[email protected]> Reviewed-by: Jason Zaman <[email protected]> Reviewed-by: Ned Bass <[email protected]> Reviewed-by: Jorgen Lundman <[email protected]> Reviewed-by: Prakash Surya <[email protected]> Reviewed-by: Hajo Möller <[email protected]> Reviewed-by: Igor Kozhukhov <[email protected]> Reviewed-by: Richard Yao <[email protected]> Reviewed-by: Tim Chase <[email protected]> Reviewed-by: DHE <[email protected]> Reviewed-by: Matthew Thode <[email protected]> Reviewed-by: Thomas Caputi <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: kernelOfTruth <[email protected]> Reviewed-by: Kash Pande <[email protected]> Reviewed-by: ilovezfs <[email protected]> Reviewed-by: @jwittlincohen Reviewed-by: Jack Draak <[email protected]> Reviewed-by: @ptx0 Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: @Kokokokoka Reviewed-by: @JCount <[email protected]> Signed-off-by: bunder2015 <[email protected]> Closes #6054
* Typo in zfs-module-parameters(5)DeHackEd2017-04-241-1/+1
| | | | | Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: DHE <[email protected]> Closes #6061
* Prebaked scripts for zpool status/iostat -cTony Hutter2017-04-211-30/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates the "zpool status/iostat -c" commands to only run "pre-baked" scripts from the /etc/zfs/zpool.d directory (or wherever you install to). The scripts can only be run from -c as an unprivileged user (unless the ZPOOL_SCRIPTS_AS_ROOT environment var is set by root). This was done to encourage scripts to be written is such a way that normal users can use them, and to be cautious. If your script needs to run a privileged command, consider adding the appropriate line in /etc/sudoers. See zpool(8) for an example of how to do this. The patch also allows the scripts to output custom column names. If the script outputs a line like: name=value then "name" is used for the column name, and "value" is its value. Multiple columns can be specified by outputting multiple lines. Column names and values can have spaces. If the value is empty, a dash (-) is printed instead. After all the "name=value" lines are read (if any), zpool will take the next the next line of output (if any) and print it without a column header. After that, no more lines will be processed. This can be useful for printing errors. Lastly, this patch also disables the -c option with the latency and request size histograms, since it produced awkward output and made the code harder to maintain. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #5852
* Documentation fixes for zfs(8) and 'zfs' binaryLOLi2017-04-201-6/+6
| | | | | | | | | * bookmarks are not supported when sending all intermediary snaps (-I) * add missing compressed (-c) option to the 'zfs' help and manpage Reviewed-by: Brian Behlendorf <[email protected]> Reviewed by: Richard Laager <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #6028
* OpenZFS 6392 - zdb: introduce -V for verbatim importRichard Yao2017-04-181-9/+11
| | | | | | | | | | | | | | | | | | | | Authored by: Richard Yao <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed by: Yuri Pankov <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> Porting Notes: This was already implemented in ZFS on Linux. This patch is to resolved the deltas present in our version. OpenZFS-issue: https://www.illumos.org/issues/6392 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9bb97de Closes #6020
* Increase zfs_vdev_async_write_min_active to 2DHE2017-04-141-1/+6
| | | | | | | | | | | | | | | | | Resilver operations frequently cause only a small amount of dirty data to be written to disk at a time, resulting in the IO scheduler to only issue 1 write at a time to the resilvering disk. When it is rotational media the drive will often travel past the next sector to be written before receiving a write command from ZFS, significantly delaying the write of the next sector. Raise zfs_vdev_async_write_min_active so that drives are kept fed during resilvering. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: DHE <[email protected]> Issue #4825 Closes #5926
* SEEK_HOLE should not block on txg_wait_synced()Debabrata Banerjee2017-04-131-0/+14
| | | | | | | | | | | | | | | Force flushing of txg's can be painfully slow when competing for disk IO, since this is a process meant to execute asynchronously. Optimize this path via allowing data/hole seeking if the file is clean, but if dirty fall back to old logic. This is a compromise to disabling the feature entirely. Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Debabrata Banerjee <[email protected]> Closes #4306 Closes #5962
* OpenZFS 6410 - teach zdb to perform object lookups by pathBrian Behlendorf2017-04-131-511/+326
| | | | | | | | | | | | | | | | | | Authored by: Yuri Pankov <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Will Andrews <[email protected]> Approved by: Dan McDonald <[email protected]> Ported-by: Brian Behlendorf <[email protected]> Porting Notes: - Replaced zdb.8 with upstream mdoc zdb.1m version. Updated to include Linux specific features: -V verbatium imports and improved label printing (-u, and -l). - Minor changes to `zdb -h` output to honor 80 character limit. OpenZFS-issue: https://www.illumos.org/issues/6410 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ed61ec1 Closes #6006
* OpenZFS 2932 - support crash dumps to raidz, etc. poolsGiuseppe Di Natale2017-04-101-0/+28
| | | | | | | | | | | | | | | Authored by: Bill Pijewski <[email protected]> Reviewed by: Jerry Jelinek <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/2932 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/810e43b Closes #5984 Closes #5216
* list -o props should be alloc,free not used,availTom Matthews2017-04-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Manpage suggests the zpool list properties include 'used' and 'available', when these are invalid property names. Use alloc and free in their place. ``` $ zpool list -o name,size,used 2>&1 |head -1 bad property list: invalid property 'used' $ zpool list -o name,size,avail 2>&1 |head -1 bad property list: invalid property 'avail' $ zpool list -o name,size,available 2>&1 |head -1 bad property list: invalid property 'available' $ zpool list -o name,size,alloc,free NAME SIZE ALLOC FREE apool 464M 203M 261M bpool 3.62T 1.97T 1.65T ``` Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: loli10K <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tom Matthews <[email protected]> Closes #5959
* Update documentation for new parameter "zfs_qat_disable"wli52017-03-271-0/+13
| | | | | | | | | | Update documentation in zfs-module-parameters.5 for new parameter "zfs_qat_disable" which was introduced by #5846. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Weigang Li <[email protected]> Closes #5914
* zfs(8) fixesDeHackEd2017-03-201-7/+8
| | | | | | | | | | | | | Documentation fixes for zfs(8) * White space issue in the userused@user property section * zfs send supports using bookmarks as the origin snapshot Reviewed by: Ned Bass <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: DHE <[email protected]> Closes #5906
* Fix nfs snapdir automountChunwei Chen2017-03-081-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | The current implementation for allowing nfs to access snapdir is very buggy. It uses a special fh for snapdirs, such that the next time nfsd does fh_to_dentry, it actually returns the root inode inside the snapshot. So nfsd never knows it cross a mountpoint. The problem is that nfsd will not hold a reference on the vfsmount of the snapshot. This cause auto unmounter to unmount the snapshot even though nfs is still holding dentries in it. To fix this, we return the inode for the snapdirs themselves. However, we also trigger automount upon fh_to_dentry, and return ESTALE so nfsd will revalidate and see the mountpoint and do crossmnt. Because nfsd will now be aware that these are different filesystems users must add crossmnt to their export options to access snapshot directories. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #3794 Closes #4716 Closes #5810 Closes #5833
* Corrected highlight for zpool man pagebunder20152017-03-071-1/+1
| | | | | | | | | SS is already highlighted and the fB/fR tags break the highlighting prematurely, removing the tags highlights the entire line. Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: bunder2015 <[email protected]> Closes #5873
* Dump unique configurations and Uberblocks in zdb -luOlaf Faaland2017-03-061-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For zdb -l, detect when the configuration nvlist in some label l (l>0) is the same as a configuration already dumped. If so, do not dump it. Make a similar check when dumping Uberblocks for zdb -lu. Check whether a label already dumped contains an identical Uberblock. If so, do not dump the Uberblock. When dumping a configuration or Uberblock, state which labels it is found in (0-3), for example: labels = 1 2 3 Detecting redundant uberblocks or configurations is accomplished by calculating checksums of the uberblocks and the packed nvlists containing the configuration. If there is nothing unique to be dumped for a label (ie the configuration and uberblocks have checksums matching those already dumped) print nothing for that label. With additional l's or u's, increase verbosity as follows: -l Dump each unique configuration only once. Indicate which labels it appears in. -ll In addition, dump label space usage stats. -lll Dump every configuration, unique or not. -u Dump each unique, valid, uberblock only once. Indicate which labels it appears in. -uu In addition, state which slots are invalid. -uuu Dump every uberblock, unique or not. -uuuu Dump the uberblock blockpointer (used to be -uuu) Make exit values conform to the manual page. Failing to unpack a configuration nvlist is considered an error, as well as failing to open or read from the device. Add three tests, zdb_00{3,4,5}_pos to verify the above functionality. An example of the output: ------------------------------------ LABEL 0 ------------------------------------ version: 5000 name: 'pool' state: 1 txg: 880 < ... redacted ... > features_for_read: com.delphix:hole_birth com.delphix:embedded_data labels = 0 Uberblock[0] magic = 0000000000bab10c version = 5000 txg = 0 guid_sum = 3038694082047428541 timestamp = 1487715500 UTC = Tue Feb 21 14:18:20 2017 labels = 0 1 2 3 Uberblock[4] magic = 0000000000bab10c version = 5000 txg = 772 guid_sum = 9045970794941528051 timestamp = 1487727291 UTC = Tue Feb 21 17:34:51 2017 labels = 0 < ... redacted ... > ------------------------------------ LABEL 1 ------------------------------------ version: 5000 name: 'pool' state: 1 txg: 14 < ... redacted ... > com.delphix:embedded_data labels = 1 2 3 Uberblock[4] magic = 0000000000bab10c version = 5000 txg = 4 guid_sum = 7793930272573252584 timestamp = 1487727521 UTC = Tue Feb 21 17:38:41 2017 labels = 1 2 3 < ... redacted ... > Reviewed-by: Tim Chase <[email protected]> Reviewed-by: Don Brady <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #5738
* zfs_arc_num_sublists_per_state should be common to all multilistsMatthew Ahrens2017-02-151-3/+4
| | | | | | | | | | | | | The global tunable zfs_arc_num_sublists_per_state is used by the ARC and the dbuf cache, and other users are planned. We should change this tunable to be common to all multilists. This tuning may be overridden on a per-multilist basis. Reviewed-by: Pavel Zakharov <[email protected]> Reviewed-by: Dan Kimmel <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matthew Ahrens <[email protected]> Closes #5764
* Enclosure LED fixesTony Hutter2017-02-101-12/+20
| | | | | | | | | | | | | | | | | | | - Pass $VDEV_ENC_SYSFS_PATH to 'zpool [iostat|status] -c' to include enclosure LED sysfs path. - Set LEDs correctly after import. This includes clearing any erroniously set LEDs prior to the import, and setting the LED for any UNAVAIL drives. - Include symlink for vdev_attach-led.sh in Makefile.am. - Print the VDEV path in all-syslog.sh, and fix it so the pool GUID actually prints. Reviewed-by: Don Brady <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #5716 Closes #5751
* Add missing module_param for zfs_per_txg_dirty_frees_percentDavid Quigley2017-02-071-0/+16
| | | | | | | | | | When the code was added this tunable was not exposed via module params. Also it was not documented. This patch changes the type from a uint32 to a ulong as done with other percentage tunables and also documents it in the zfs-module-parameters man page. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: David Quigley <[email protected]> Closes #5750
* OpenZFS 6866 - zdb -l non-zero status if no labelDon Brady2017-02-031-4/+10
| | | | | | | | | | | | | | | | Authored by: Yuri Pankov <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: John Kennedy <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Don Brady <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/6866 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/3e4fae5 Closes #5730 Porting Notes: - Omitted the illumos-specific `/dev/dsk` and `/dev/rdsk` path conversions since they don't apply on linux.
* Update deadman operation to better align with upstream OpenZFSTim Chase2017-01-311-8/+26
| | | | | | | | | | | | | | | | | | | | | | | The deadman in ZoL didn't behave quite as it did in upstream OpenZFS. In addition to the 2 purposes for which OpenZFS used the zfs_deadman_synctime_ms parameter, ZoL also used it to determine how frequently the deadman would fire once it has been triggered. This patch adds the zfs_deadman_checktime_ms parameter to control how frequently the subsequent checks are performed. The deadman is now disabled for suspended pools. As had been the case, unlike upstream OpenZFS, ZoL will not panic when a hung IO is detected. The module parameter documentation has been upated to include the new parameter and to better describe the operation of the deadmen. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Tim Chase <[email protected]> Closes #5695
* OpenZFS 7280 - Allow changing global libzpool variables in zdb and ztest ↵George Melikov2017-01-311-1/+13
| | | | | | | | | | | | | | through command line Authored by: Pavel Zakharov <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7280 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/0e60744 Closes #5676
* OpenZFS 7277 - zdb should be able to print zfs_dbgmsg'sGeorge Melikov2017-01-281-3/+14
| | | | | | | | | | | | | | | | | | Porting notes: - 'zfs_dbgmsg_print()' reintroduced to userspace. Authored by: Pavel Zakharov <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7277 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/29bdd2f Closes #5684
* OpenZFS 7386 - zfs get does not work properly with bookmarksGeorge Melikov2017-01-261-2/+2
| | | | | | | | | | | | Authored by: Marcel Telka <[email protected]> Reviewed by: Simon Klinkert <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Approved by: Matthew Ahrens <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7386 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/edb901a Closes #5666
* Minor man-page formatting fixesHåkan Johansson2017-01-243-5/+5
| | | | | | | | | | fB -> \fB in zpool.8 (Properties -> cachefile) \fN -> \fB in zfs-module-parameters.5 (zfs_dirty_data_max_max_percent) Three | -> \fR|\fI fixes for arguments of diff and inherit in zfs.8. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: loli10K <[email protected]> Signed-off-by: Haakan T Johansson <[email protected]> Closes #5645
* OpenZFS 7257 - zfs manpage user property length needs to be updatedGeorge Melikov2017-01-171-1/+1
| | | | | | | | | | | | | | | | | | Since zpool version 16, this limit is actually 8192 characters. Additionally, this limit is actually 8192 bytes, as it supports UTF-8. Authored by: Eli Rosenthal <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Yuri Pankov <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Reviewed by: Robert Mustacchi <[email protected]> Approved by: Richard Lowe <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7257 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/3bc7169 Closes #5608
* OpenZFS 7276 - zfs(1m) manpage could better describe space propertiesGeorge Melikov2017-01-131-5/+5
| | | | | | | | | | | | | Authored by: Pavel Zakharov <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7276 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d750135 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/29c6739 Closes #5549
* OpenZFS 7303 - dynamic metaslab selectionDon Brady2017-01-121-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | This change introduces a new weighting algorithm to improve metaslab selection. The new weighting algorithm relies on the SPACEMAP_HISTOGRAM feature. As a result, the metaslab weight now encodes the type of weighting algorithm used (size-based vs segment-based). Porting Notes: The metaslab allocation tracing code is conditionally removed on linux (dependent on mdb debugger). Authored by: George Wilson <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Chris Siden <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Pavel Zakharov [email protected] Reviewed by: Prakash Surya <[email protected]> Reviewed by: Don Brady <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Don Brady <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7303 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d5190931bd Closes #5404
* Fix spellingka72017-01-031-1/+1
| | | | | | | | | Reviewed-by: Brian Behlendorf <[email protected] Reviewed-by: Giuseppe Di Natale <[email protected]>> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Haakan T Johansson <[email protected]> Closes #5547 Closes #5543
* Remove extra + from zfs man pagebunder20152016-12-211-1/+1
| | | | | | Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: bunder2015 <[email protected]> Closes #5508
* Revert "Disable zio_dva_throttle_enabled by default"Brian Behlendorf2016-12-081-1/+1
| | | | | | | | | | | Enable zio_dva_throttle_enabled=1 by default. Subsequent testing has been unable to reproduce the suspected regression. Tested-by: kernelOfTruth [email protected] Reviewed-by: Olaf Faaland <[email protected]> Signed-off-by: Brian Behlendorf [email protected] Reverts #5335 Closes #5289 Closes #5457
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