Commit Graph

143 Commits

Author SHA1 Message Date
Matthew Ahrens
308a451f7f Illumos 5134 - if ZFS_DEBUG or debug= is set, libzpool should enable debug prints
5134 if ZFS_DEBUG or debug= is set, libzpool should enable debug prints
Reviewed by: Adam Leventhal <adam.leventhal@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/projects/illumos-gate/issues/5134
  https://github.com/illumos/illumos-gate/commit/7fa49ea

Porting notes:
  Added dprintf_setup() to main in zfs_main.c and zpool_main.c.

Ported by: Turbo Fredriksson <turbo@bayour.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2669
2015-04-28 10:13:40 -07:00
Isaac Huang
c5656c4cfc Memory leak in make_root_vdev()
The newroot nvlist should be freed before returning.

Signed-off-by: Isaac Huang <he.huang@intel.com>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3264
2015-04-27 09:18:02 -07:00
Brian Behlendorf
7d90f569b3 Check all vdev labels in 'zpool import'
When using 'zpool import' to scan for available pools prefer vdev names
which reference vdevs with more valid labels.  There should be two labels
at the start of the device and two labels at the end of the device.  If
labels are missing then the device has been damaged or is in some other
way incomplete.  Preferring names with fully intact labels helps weed out
bad paths and improves the likelihood of being able to import the pool.

This behavior only applies when scanning /dev/ for valid pools.  If a
cache file exists the pools described by the cache file will be used.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Closes #3145
Closes #2844
Closes #3107
2015-03-25 14:52:52 -07:00
Tim Chase
e02b533e74 Enhancements to zpool dry run mode.
In dry run mode, zpool should display more of the proposed pool
configuration for "zpool add".  This commit adds support for displaying
cache devices.

Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1106
2015-02-11 14:05:17 -08:00
Chunwei Chen
53698a453d Read spl_hostid module parameter before gethostid()
If spl_hostid is set via module parameter, it's likely different from
gethostid(). Therefore, the userspace tool should read it first before
falling back to gethostid().

Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3034
2015-02-04 16:44:53 -08:00
Brian Behlendorf
5c7afad448 Fix cstyle issue from c66989b
Commit c66989b accidentally introduced a cstyle issue which went
unnoticed.  This tiny patch corrects that oversight.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2014-12-19 12:00:14 -08:00
Jacek Fefliński
c66989baae zpool upgrade return errors to stderr instead of stdout
Signed-off-by: Jacek Feflinski <feflik@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2955
2014-12-18 17:38:18 -08:00
ilovezfs
023bbe6f01 Fix zpool create -t ENOENT bug.
In userland we need to switch over to the temporary name once the
pool has been created, otherwise the root dataset won't mount
and the error "cannot open 'the_real_name': dataset does not exist"
is printed.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2760
2014-10-23 10:00:35 -07:00
Darik Horn
d94fd5f0de Let zpool import ignore a missing hostid record.
Change the zpool program to skip its hostid mismatch check in the
same way that libzfs already does.

Invoked imports fail if the ZPOOL_CONFIG_HOSTID nvpair is missing in
the /etc/zfs/zpool.cache file, which can happen as of the /etc/hostid
deprecation in commit zfsonlinux/spl@acf0ade362.

Signed-off-by: Darik Horn <dajhorn@vanadac.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2794
2014-10-17 14:59:05 -07:00
Richard Yao
83e9986f6e Implement -t option to zpool create for temporary pool names
Creating virtual machines that have their rootfs on ZFS on hosts that
have their rootfs on ZFS causes SPA namespace collisions when the
standard name rpool is used. The solution is either to give each guest
pool a name unique to the host, which is not always desireable, or boot
a VM environment containing an ISO image to install it, which is
cumbersome.

26b42f3f9d introduced `zpool import -t
...` to simplify situations where a host must access a guest's pool when
there is a SPA namespace conflict. We build upon that to introduce
`zpool import -t tname ...`. That allows us to create a pool whose
in-core name is tname, but whose on-disk name is the normal name
specified.

This simplifies the creation of machine images that use a rootfs on ZFS.
That benefits not only real world deployments, but also ZFSOnLinux
development by decreasing the time needed to perform rootfs on ZFS
experiments.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2417
2014-09-30 10:46:59 -07:00
Richard Yao
00d2a8c92f zpool import -t should not update cachefile
zpool import's -t parameter is intended for use with -R when operating
on pools that belong to other systems. Like -R, pools imported in this
way should not update the cachefile unless explicitly requested. The
initial implementation allowed the cachefile to be updated when -R was
not used. This went uncaught during testing because -R had implicitly
disabled use of the cachefile.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2417
2014-09-30 10:46:58 -07:00
Richard Yao
2f3ec90061 Add add_prop_list_default helper
Adding to a property list only if there is no existing value is used
twice. Once by zpool create -R and again by zpool import -R. Now that
zpool create -t and zpool import -t also need it, lets refactor it into
a helper function to make the code more readable.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2417
2014-09-30 10:46:58 -07:00
George Wilson
a05dfd0028 Illumos 5147 - zpool list -v should show individual disk capacity
The 'zpool list -v' command displays lots of info but excludes the
capacity of each disk. This should be added.

5147 zpool list -v should show individual disk capacity
Reviewed by: Adam Leventhal <adam.leventhal@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Matthew Ahrens <matthew.ahrens@delphix.com>
Reviewed by: Richard Elling <richard.elling@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/5147
  https://github.com/illumos/illumos-gate/commit/7a09f97

Ported by: Turbo Fredriksson <turbo@bayour.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2688
2014-09-23 10:10:42 -07:00
Dan Swartzendruber
287be44f53 Improve handling of filesystem versions
Change mount code to diagnose filesystem versions that
are not supported by the current implementation.

Change upgrade code to do likewise and refuse to upgrade
a pool if any filesystems on it are a version which is
not supported by the current implementation.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Dan Swartzendruber <dswartz@druber.com>
Closes: #2616
2014-09-03 09:17:14 -07:00
Matthew Ahrens
dea377c0d9 Illumos 4970-4974 - extreme rewind enhancements
4970 need controls on i/o issued by zpool import -XF
4971 zpool import -T should accept hex values
4972 zpool import -T implies extreme rewind, and thus a scrub
4973 spa_load_retry retries the same txg
4974 spa_load_verify() reads all data twice
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>

References:
  https://www.illumos.org/issues/4970
  https://www.illumos.org/issues/4971
  https://www.illumos.org/issues/4972
  https://www.illumos.org/issues/4973
  https://www.illumos.org/issues/4974
  https://github.com/illumos/illumos-gate/commit/e42d205

Notes:
    This set of patches adds a set of tunable parameters for the
    "extreme rewind" mode of pool import which allows control over
    the traversal performed during such an import.

Ported by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2598
2014-08-26 16:29:57 -07:00
Richard Yao
2fe5011008 Drive database update
The Intel DC S3500 and Intel DC S3700 are optimized to handle 4KB
sectors well despite of their 8KB page sizes, so we move them to a new
category for enterprise drives where they will receive ashift=12. They
are joined by the Intel 730 series, which uses the same disk controller,
as well as a San Disk enterprise drive. The drive IDs for these two were
obtained by myself with the drive_id utility. The drive ID for the 240GB
Intel 730 model was extrapolated from the drive ID for the 480GB model.

Lastly, we also add some Western Digital mobile drives.  ryuo in
\#zfsonlinux on freenode obtained "ATA     WDC WD2500BEVT-0" from
running drive_id on his own hardware. The additional drives in that
family were extrapolated from that identifer.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2601
2014-08-18 10:09:03 -07:00
George Wilson
f3a7f6610f Illumos 4976-4984 - metaslab improvements
4976 zfs should only avoid writing to a failing non-redundant top-level vdev
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>

References:
  https://www.illumos.org/issues/4976
  https://www.illumos.org/issues/4978
  https://www.illumos.org/issues/4979
  https://www.illumos.org/issues/4980
  https://www.illumos.org/issues/4981
  https://www.illumos.org/issues/4982
  https://www.illumos.org/issues/4983
  https://www.illumos.org/issues/4984
  https://github.com/illumos/illumos-gate/commit/2e4c998

Notes:
    The "zdb -M" option has been re-tasked to display the new metaslab
    fragmentation metric and the new "zdb -I" option is used to control
    the maximum number of in-flight I/Os.

    The new fragmentation metric is derived from the space map histogram
    which has been rolled up to the vdev and pool level and is presented
    to the user via "zpool list".

    Add a number of module parameters related to the new metaslab weighting
    logic.

Ported by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2595
2014-08-18 08:40:49 -07:00
Matthew Ahrens
9bd274ddd8 Illumos #4374
4374 dn_free_ranges should use range_tree_t

Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/4374
  https://github.com/illumos/illumos-gate/commit/bf16b11

Ported by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2531
2014-07-30 09:20:35 -07:00
Matthew Ahrens
fa86b5dbb6 Illumos 4171, 4172
4171 clean up spa_feature_*() interfaces
4172 implement extensible_dataset feature for use by other zpool features

Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Approved by: Garrett D'Amore <garrett@damore.org>a

References:
  https://www.illumos.org/issues/4171
  https://www.illumos.org/issues/4172
  https://github.com/illumos/illumos-gate/commit/2acef22

Ported-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2528
2014-07-25 16:40:07 -07:00
Turbo Fredriksson
79eb71dc6c Support '-H' (scripted mode) to 'zpool get'
This functionality is already available in 'zfs get'.  Providing
it for 'zpool get' is useful and good for consistency.

Signed-off-by: Turbo Fredriksson <turbo@bayour.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes: #2522
2014-07-25 11:58:36 -07:00
Turbo Fredriksson
628668a39f Add information about the -o option to zpool replace
Users need to be aware that when replacing devices in an existing
pool they may need to override automatically detected ashift value.
This will all depend on the exact hardware they are using.

Signed-off-by: Turbo Fredriksson <turbo@bayour.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2024
2014-06-27 08:31:07 -07:00
John Albietz
5f3c101b8f Added INTEL SSD 530 Series
INTEL SSD 530 Series... SSDSC2BW24

Signed-off-by: John Albietz <inthecloud247@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2184
2014-05-19 16:57:14 -07:00
Richard Yao
1cbae971c5 Handle ZPOOL_STATUS_HOSTID_MISMATCH in zpool status
Verbatim imports can cause hostid mismatches, but things otherwise work. `zpool
status` does not handle this and will fail when assertions are enabled:

```
zpool: ../../cmd/zpool/zpool_main.c:4418: status_callback: Assertion `reason == ZPOOL_STATUS_OK' failed.

Program received signal SIGABRT, Aborted.
```

Lets instead add a case to display an informative message such as this:

```
  pool: rpool
 state: ONLINE
status: Mismatch between pool hostid and system hostid on imported pool.
        This pool was previously imported into a system with a different hostid,
        and then was verbatim imported into this system.
action: Export this pool on all systems on which it is imported.
        Then import it to correct the mismatch.
   see: http://zfsonlinux.org/msg/ZFS-8000-EY
  scan: scrub repaired 0 in 0h8m with 0 errors on Thu Apr 17 19:43:57 2014
config:

        NAME        STATE     READ WRITE CKSUM
        rpool       ONLINE       0     0     0
          sda       ONLINE       0     0     0

errors: No known data errors
```

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2342
2014-05-19 10:16:29 -07:00
Richard Yao
c6e924fea8 Fix libblkid ZFS detection when making new pools
zfsonlinux/zfs@1db7b9be75 should have
fixed this, but this particular string was overlooked.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2288
2014-05-01 13:26:33 -07:00
Brian Behlendorf
d21705eab9 Add missing DATA_TYPE_STRING_ARRAY output
This functionality has always been missing.  But until now there
were no zevents which included an array of strings so it wasn't
missed.  However, that's now changed so to ensure this information
is output correctly by 'zpool events -v' the DATA_TYPE_STRING_ARRAY
has been implemented.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Issue #2
2014-04-02 13:10:08 -07:00
Chris Dunlap
8c7aa0cfc4 Replace zpool_events_next() "block" parm w/ "flags"
zpool_events_next() can be called in blocking mode by specifying a
non-zero value for the "block" parameter.  However, the design of
the ZFS Event Daemon (zed) requires additional functionality from
zpool_events_next().  Instead of adding additional arguments to the
function, it makes more sense to use flags that can be bitwise-or'd
together.

This commit replaces the zpool_events_next() int "block" parameter with
an unsigned bitwise "flags" parameter.  It also defines ZEVENT_NONE
to specify the default behavior.  Since non-blocking mode can be
specified with the existing ZEVENT_NONBLOCK flag, the default behavior
becomes blocking mode.  This, in effect, inverts the previous use
of the "block" parameter.  Existing callers of zpool_events_next()
have been modified to check for the ZEVENT_NONBLOCK flag.

Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2
2014-03-31 16:11:21 -07:00
Brian Behlendorf
9b101a7320 Clarify zpool_events_next() comment
Due to the very poorly chosen argument name 'cleanup_fd' it was
completely unclear that this file descriptor is used to track the
current cursor location.  When the file descriptor is created by
opening ZFS_DEV a private cursor is created in the kernel for the
returned file descriptor.  Subsequent calls to zpool_events_next()
and zpool_events_seek() then require the file descriptor as an
argument to reposition the cursor.  When the file descriptor is
closed the kernel state tracking the cursor is destroyed.

This patch contains no functional change, it just changes a
few variable names and clarifies the documentation.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Issue #2
2014-03-31 16:11:08 -07:00
Richard Yao
26b42f3f9d Implement -t option to zpool import for temporary pool names
Originally, users had to handle spa namespace collisions by either
exporting the already imported pool or by specifying a new name for the
pool with a conflicting name. In the case of root pools from virtual
guests, neither approach to collision resolution is reasonable. This is
addressed by extending the new name syntax with a -t option to specify
that the new name is temporary. When specified, this sets an internal
flag that is passed into the kernel to tell it that all label updates
should refer to the name used in the original label. Consequently, the
original pool name will be retained on export.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2189
2014-03-20 12:05:30 -07:00
Richard Yao
e2282ef57e Remove unused option -r from 'zpool import'
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2178
2014-03-12 09:09:52 -07:00
Richard Yao
4f2dcb3eee Add erratum for issue #2094
ZoL commit 1421c89 unintentionally changed the disk format in a forward-
compatible, but not backward compatible way. This was accomplished by
adding an entry to zbookmark_t, which is included in a couple of
on-disk structures. That lead to the creation of pools with incorrect
dsl_scan_phys_t objects that could only be imported by versions of ZoL
containing that commit.  Such pools cannot be imported by other versions
of ZFS or past versions of ZoL.

The additional field has been removed by the previous commit.  However,
affected pools must be imported and scrubbed using a version of ZoL with
this commit applied.  This will return the pools to a state in which they
may be imported by other implementations.

The 'zpool import' or 'zpool status' command can be used to determine if
a pool is impacted.  A message similar to one of the following means your
pool must be scrubbed to restore compatibility.

$ zpool import
   pool: zol-0.6.2-173
     id: 1165955789558693437
  state: ONLINE
 status: Errata #1 detected.
 action: The pool can be imported using its name or numeric identifier,
         however there is a compatibility issue which should be corrected
         by running 'zpool scrub'
    see: http://zfsonlinux.org/msg/ZFS-8000-ER
 config:
 ...

$ zpool status
  pool: zol-0.6.2-173
 state: ONLINE
  scan: pool compatibility issue detected.
   see: https://github.com/zfsonlinux/zfs/issues/2094
action: To correct the issue run 'zpool scrub'.
config:
...

If there was an async destroy in progress 'zpool import' will prevent
the pool from being imported.  Further advice on how to proceed will be
provided by the error message as follows.

$ zpool import
   pool: zol-0.6.2-173
     id: 1165955789558693437
  state: ONLINE
 status: Errata #2 detected.
 action: The pool can not be imported with this version of ZFS due to an
         active asynchronous destroy.  Revert to an earlier version and
         allow the destroy to complete before updating.
         see: http://zfsonlinux.org/msg/ZFS-8000-ER
 config:
 ...

Pools affected by the damaged dsl_scan_phys_t can be detected prior to
an upgrade by running the following command as root:

zdb -dddd poolname 1 | grep -P '^\t\tscan = ' | sed -e 's;scan = ;;' | wc -w

Note that `poolname` must be replaced with the name of the pool you wish
to check. A value of 25 indicates the dsl_scan_phys_t has been damaged.
A value of 24 indicates that the dsl_scan_phys_t is normal. A value of 0
indicates that there has never been a scrub run on the pool.

The regression caused by the change to zbookmark_t never made it into a
tagged release, Gentoo backports, Ubuntu, Debian, Fedora, or EPEL
stable respositorys.  Only those using the HEAD version directly from
Github after the 0.6.2 but before the 0.6.3 tag are affected.

This patch does have one limitation that should be mentioned.  It will not
detect errata #2 on a pool unless errata #1 is also present.  It expected
this will not be a significant problem because pools impacted by errata #2
have a high probably of being impacted by errata #1.

End users can ensure they do no hit this unlikely case by waiting for all
asynchronous destroy operations to complete before updating ZoL.  The
presence of any background destroys on any imported pools can be checked
by running `zpool get freeing` as root.  This will display a non-zero
value for any pool with an active asynchronous destroy.

Lastly, it is expected that no user data has been lost as a result of
this erratum.

Original-patch-by: Tim Chase <tim@chase2k.com>
Reworked-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2094
2014-02-21 12:10:40 -08:00
Brian Behlendorf
ffe9d38275 Add generic errata infrastructure
From time to time it may be necessary to inform the pool administrator
about an errata which impacts their pool.  These errata will by shown
to the administrator through the 'zpool status' and 'zpool import'
output as appropriate.  The errata must clearly describe the issue
detected, how the pool is impacted, and what action should be taken
to resolve the situation.  Additional information for each errata will
be provided at http://zfsonlinux.org/msg/ZFS-8000-ER.

To accomplish the above this patch adds the required infrastructure to
allow the kernel modules to notify the utilities that an errata has
been detected.  This is done through the ZPOOL_CONFIG_ERRATA uint64_t
which has been added to the pool configuration nvlist.

To add a new errata the following changes must be made:

* A new errata identifier must be assigned by adding a new enum value
  to the zpool_errata_t type.  New enums must be added to the end to
  preserve the existing ordering.

* Code must be added to detect the issue.  This does not strictly
  need to be done at pool import time but doing so will make the
  errata visible in 'zpool import' as well as 'zpool status'.  Once
  detected the spa->spa_errata member should be set to the new enum.

* If possible code should be added to clear the spa->spa_errata member
  once the errata has been resolved.

* The show_import() and status_callback() functions must be updated
  to include an informational message describing the errata.  This
  should include an action message describing what an administrator
  should do to address the errata.

* The documentation at http://zfsonlinux.org/msg/ZFS-8000-ER must be
  updated to describe the errata.  This space can be used to provide
  as much additional information as needed to fully describe the errata.
  A link to this documentation will be automatically generated in the
  output of 'zpool import' and 'zpool status'.

Original-idea-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Richard Yao <ryao@gentoo.or
Issue #2094
2014-02-21 12:10:40 -08:00
Brian Behlendorf
731782ec31 Use expected zpool_status_t type
Both the zpool_import_status() and zpool_get_status() functions
return the zpool_status_t enum.  This explicit type should be used
rather than the more generic int type.

This patch makes no functional change and should only be considered
code cleanup.  It happens to have been done in the context of #2094
because that's when I noticed this issue.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Richard Yao <ryao@gentoo.or
Issue #2094
2014-02-21 12:10:40 -08:00
Richard Yao
cbe8e6198c Properly link zpool command to libblkid
31fc19399e incorrectly removed $(LIBBLKID)
from cmd/zpool/Makefile.am. This meant that the toolchain was not given
-lblkid, which resulted in the following build failure on Ubuntu 13.10:

/usr/bin/ld: zpool_vdev.o: undefined reference to symbol
'blkid_put_cache@@BLKID_1.0'
/lib/x86_64-linux-gnu/libblkid.so.1: error adding symbols: DSO missing
from command line
collect2: error: ld returned 1 exit status

That commit reworked various Makefile.am to follow best practices, so we
reintroduce $(LIBBLKID) in a manner consistent with that, rather than
explicitly reverting the change.

Reproduction of this issue was done on a Gentoo Linux system by
executing the following commands:

zfs create -o mountpoint=/mnt/ubuntu-13.10 rpool/ROOT/ubuntu-13.10
debootstrap --variant=buildd --arch amd64 saucy /mnt/ubuntu-13.10 http://archive.ubuntu.com/ubuntu/
mount -o bind /dev /mnt/ubuntu-13.10/dev/
mount -o bind /proc/ /mnt/ubuntu-13.10/proc/
mount -o bind /sys/ /mnt/ubuntu-13.10/sys/
cp /etc/resolv.conf /mnt/ubuntu-13.10/etc/
(cd /mnt/ubuntu-13.10/root/ && git clone git://github.com/zfsonlinux/zfs.git)
chroot /mnt/ubuntu-13.10/
apt-get install git autoconf libtool zlib1g-dev uuid-dev libblkid-dev
\#apt-get install alien fakeroot vim
cd /root/zfs
./autogen.sh
./configure --with-config=user --prefix=/usr
make

That will create a Ubuntu 13.10 chroot, fetch the sources and build
test. At this point, cmd/zpool/Makefile.am was modified and the
following commands were run to verify that the build issue was resolved:

git clean -xdf
./autogen.sh
./configure --with-config=user --prefix=/usr
make

Although it is not shown here, the absence of libblkid-dev enables ZFS
to build successfully without the patch. This could explain how this
escaped detection until recently. A test without libblkid-dev was done
to verify that the patch did not cause a regression in the absence of
libblkid:

apt-get remove libblkid-dev
git clean -xdf
./autogen.sh
./configure --with-config=user --prefix=/usr
make

Additionally, the commands themselves were tested against my live system
from within the chroot to ensure basic functionality. My live system had
corresponding kernel modules already installed and basic commands such
as `zpool list` and `zfs list` worked without incident. Lastly, this
patch was also build tested on Gentoo Linux, where it caused no
problems.

At time of writing, these steps can be used to reproduce these results
on any modern Linux system that has debootstrap installed. On Gentoo,
installing debootstrap can be done with `emerge dev-util/debootstrap`.
The current ZFSOnLinux HEAD revision as of writing is
fd23720ae1.  Once this is fixed in HEAD,
either that revision or another before this fix and after
31fc19399e will be needed to reproduce
this issue.

Lastly, it remains to be seen why the toolchains on the systems
performing regression tests did not catch this. This is not a
ZFS-specific issue, but it is something that we will want to explore in
the future.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2038
2014-01-14 10:27:17 -08:00
Michael Kjorling
d1d7e2689d cstyle: Resolve C style issues
The vast majority of these changes are in Linux specific code.
They are the result of not having an automated style checker to
validate the code when it was originally written.  Others were
caused when the common code was slightly adjusted for Linux.

This patch contains no functional changes.  It only refreshes
the code to conform to style guide.

Everyone submitting patches for inclusion upstream should now
run 'make checkstyle' and resolve any warning prior to opening
a pull request.  The automated builders have been updated to
fail a build if when 'make checkstyle' detects an issue.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1821
2013-12-18 16:46:35 -08:00
Richard Yao
c8c8d1e7e5 Drive database update
Added:

Adata S396 (obtained from drive_id)
Apple MacBookAir3,1 SSD (obtained from drive_id)
Apple MacBookPro10,1 SSD (obtained from drive_id)
Intel 510 (obtained from drive_id)
Intel 710 (obtained from drive_id)
Intel DC S3500 (obtained from drive_id)
Netapp LUN (obtained from illumos user's sd.conf)
OCZ Agility 3 (obtained from drive_id)
OCZ Vertex (obtained from drive_id)
Samsung PM800 (obtained from drive_id)
Sandisk U100 (obtained from drive_id)
Sun Comstar (obtained from illumos user's sd.conf)

Notes:

1. The entries for the Intel DC S3500 were extrapolated from the 800GB
model's entry, which is "ATA     INTEL SSDSC2BB80".

2. The entires for the Intel 710 were extrapolated from the 120GG
model's entry, which is "ATA     INTEL SSDSA2BZ12".

3. The entires for the Intel 510 were extrapolated from the 250GB
model's entry, which is "ATA     INTEL SSDSC2MH25".

4. The entires for the Apple MacBookPro10,1 SSD were extrapolated from
the 512GB model's entry, which is "ATA     APPLE SSD SM512E". Google
searches suggest that this is a rebadged Samsung 830.

5. The entires for the Apple MacBookAir3,1 SSD were extrapolated from
the 128GB model's entry, which is "ATA     APPLE SSD TS128C". Google
searches suggest that this is a rebadged Kingston SSDNow V+ 100 (based
on Toshiba).

6. Sun Comstar is an iSCSI Target, so we cannot tell what the correct
sector size is through this method. We list it only for reference
purposes, but it is commented out. Similarly, it is not clear what the
right thing to do for Netapp is, so we comment it out.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1907
2013-12-02 14:07:26 -08:00
Maximilian Mehnert
539defc873 Add missing libzfs_core to Makefiles
On some platforms symbols provided by libzfs_core and used by
libzfs were not available to the linker.  To avoid this issue
libzfs_core has been added to the list of required libraries
when building utilities which depend on libzfs.  This should
have been handled properly by libtool and it's still not
entirely clear why it wasn't on all platforms.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1841
2013-11-20 15:44:15 -08:00
Will Andrews
7bc7f25040 Illumos #3745, #3811
3745 zpool create should treat -O mountpoint and -m the same
3811 zpool create -o altroot=/xyz -O mountpoint=/mnt ignores
     the mountpoint option
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Christopher Siden <christopher.siden@delphix.com>

References:
  https://www.illumos.org/issues/3745
  https://www.illumos.org/issues/3811
  illumos/illumos-gate@8b71377531

Ported-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1775
2013-11-04 10:55:25 -08:00
Ralf Ertzinger
d65e738109 Add -p switch to "zpool get"
This works the same as the -p switch to "zfs get", displaying full
resolution values for appropriate attributes.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1813
2013-10-28 15:40:12 -07:00
Brian Behlendorf
11cb9d773f Increase default udev wait time
When creating a new pool, or adding/replacing a disk in an existing
pool, partition tables will be automatically created on the devices.
Under normal circumstances it will take less than a second for udev
to create the expected device files under /dev/.  However, it has
been observed that if the system is doing heavy IO concurrently udev
may take far longer.  If you also throw in some cheap dodgy hardware
it may take even longer.

To prevent zpool commands from failing due to this the default wait
time for udev is being increased to 30 seconds.  This will have no
impact on normal usage, the increase timeout should only be noticed
if your udev rules are incorrectly configured.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1646
2013-10-22 10:25:51 -07:00
Tim Chase
2e2ddc30b4 Dedup-related documentation additions for zpool and zdb.
Document the "-D" and "-T" options and the optional interval
and count or "zpool status".

Also for zpool's man page, use a consistent order for the
various "-T" options to match the program's help output.

Document the effect of additional "-D" options for zdb.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1786
2013-10-22 10:08:51 -07:00
Richard Yao
31fc19399e Generate libraries with correct DT_NEEDED entries
Libraries that depend on other libraries should list them in ELF's
DT_NEEDED field so that programs linking to them do not need to specify
those libraries unless they depend on them as well. This is not the case
in the current code and the consequence is that anything that needs a
library must know its dependencies. This is fragile and caused GRUB2's
configure script to break when a dependency was added on libblkid in
libzfs.

This resolves that problem by using LIBADD/LDADD to specify libraries in
Makefile.am instead of LDFLAGS. This ensures that proper DT_NEEDED
entries are generated and prevents GRUB2's configure script from
breaking in the presence of a libblkid dependency. This also removes
unneeded dependencies from various files.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1751
2013-10-10 16:56:51 -07:00
Richard Yao
3549721c9e Update drive database
Add Corsair Force GS drive (obtained from drive_id)
Add Kingston HyperX 3K (obtained from drive_id)
Add OCZ Vertex 4 drive (obtained from drive_id)
Add Samsung SM843T enterprise drive (obtained from drive_id)
Add entries for additional sizes of Intel 320/330/335/520 series
Add Cruical C400 (obtained from Illumos user's sd.conf)
Add Toshiba SSD (obtained from Illumos user's sd.conf)
Add Samsung's first SLC SSD (obtained from drive_id)
Add OCZ Core Series (obtained from drive_id)
Add Intel DC S3700 (obtained from drive_id)

Notes:

1. The drive identifer obtained for the Samsung SM843T was MZ7WD480. The
rest were extrapolated. The additional entries were checked with Google
to verify that such drives exist in the wild.

2. The additional entries for Intel drives were extrapolated from
existing entries. The additional entries were checked with Google to
verify that such drives exist in the wild.

3. The "ATA     C400-MTFDDAC512M" and "ATA     TOSHIBA THNSNH51" entries
are from the sd.conf of gcbirzan on freenode. Additional entries were
extrapolated from them and checked with Google.

4. I obtained the Samsung MCCOE64G entry from an actual drive. The
Samsung MCCOE32G entry was extrapolated from it and checked with
Google.

5. I obtained the SSDSC2BA10 from a 100GB Intel DC S3700 drive and
extrapolated the entries for the additional models.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1752
2013-10-09 09:16:23 -07:00
Matthew Ahrens
6f1ffb0665 Illumos #2882, #2883, #2900
2882 implement libzfs_core
2883 changing "canmount" property to "on" should not always remount dataset
2900 "zfs snapshot" should be able to create multiple, arbitrary snapshots at once

Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Chris Siden <christopher.siden@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Bill Pijewski <wdp@joyent.com>
Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com>
Approved by: Eric Schrock <Eric.Schrock@delphix.com>

References:
  https://www.illumos.org/issues/2882
  https://www.illumos.org/issues/2883
  https://www.illumos.org/issues/2900
  illumos/illumos-gate@4445fffbbb

Ported-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1293

Porting notes:

WARNING: This patch changes the user/kernel ABI.  That means that
the zfs/zpool utilities built from master are NOT compatible with
the 0.6.2 kernel modules.  Ensure you load the matching kernel
modules from master after updating the utilities.  Otherwise the
zfs/zpool commands will be unable to interact with your pool and
you will see errors similar to the following:

  $ zpool list
  failed to read pool configuration: bad address
  no pools available

  $ zfs list
  no datasets available

Add zvol minor device creation to the new zfs_snapshot_nvl function.

Remove the logging of the "release" operation in
dsl_dataset_user_release_sync().  The logging caused a null dereference
because ds->ds_dir is zeroed in dsl_dataset_destroy_sync() and the
logging functions try to get the ds name via the dsl_dataset_name()
function. I've got no idea why this particular code would have worked
in Illumos.  This code has subsequently been completely reworked in
Illumos commit 3b2aab1 (3464 zfs synctask code needs restructuring).

Squash some "may be used uninitialized" warning/erorrs.

Fix some printf format warnings for %lld and %llu.

Apply a few spa_writeable() changes that were made to Illumos in
illumos/illumos-gate.git@cd1c8b8 as part of the 3112, 3113, 3114 and
3115 fixes.

Add a missing call to fnvlist_free(nvl) in log_internal() that was added
in Illumos to fix issue 3085 but couldn't be ported to ZoL at the time
(zfsonlinux/zfs@9e11c73) because it depended on future work.
2013-09-04 15:49:00 -07:00
Richard Yao
bff32e0972 Implement database to workaround misreported physical sector sizes
This implements vdev_bdev_database_check(). It alters the detected
sector size of any device listed in a database of drives known to lie
about their physical sector sizes.

This is based on "6931570 Add flash devices' VID/PID to disk table to
advertising 4K physical sector size" from Open Solaris and on
sg_simple4.c from sg3_utils. About two dozen lines are taken from
sg_simple4.c, which is GPLv2 licensed. However, sg_simple4.c is
analogous to a Hello World program and is safe for us to use. We
requested that Douglas Gilbert, the author of sg_simple4.c, confirm that
this is the case. A cutdown version of his response is as follows:

```
I would consider a SCSI INQUIRY example using the Linux sg
driver interface (also written by me) as the equivalent of an
"hello world" program in C.
```

The database was created with the help of the freenode and ZFSOnLinux
communities.

Some notes:

1. The following drives both were confirmed to lie via reports in IRC
and they contain capacity information in their identifiers:

INTEL SSDSA2M080
INTEL SSDSA2M160
M4-CT256M4SSD2
WDC WD15EARS-00S
WDC WD15EARS-00Z
WDC WD20EARS-00M

The identifiers for different capacity models were extrapolated and
added under the assumption that those models also lie. Google was used
to verify that the extrapolated drive identifiers existed prior to their
inclusion.

2. The OCZ-VERTEX2 3.5 identifer applies to two drives that differ
solely in page size (and slightly in capacity). One uses 4096-byte pages
and the other uses 8192-byte pages. Both are set to use 8192-byte pages.
We could detect the page size by checking the capacity, but that would
unnecessarily complicate the code.

3. It is possible for updated drive firmware to correctly report the
sector size. There were reports of a few advanced format drives doing
that. One report stated that the vendor changed the identification
string while another was unclear on this. Both reports involved WDC
models.

4. Google was used to determine the size of pages in the listed flash
devices. Reports of 8192-byte pages took precedence over reports of
4096-byte pages.

5. Devices behind USB adapters can have their identification strings
altered. Identification strings obtained across USB adapters are
omitted and no attempt is made to correct for alterations made by USB
adapters when doing comparisons against the database. Two entries in the
Open Solaris database that appear to have been altered by a USB
adapter were omitted.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1652
2013-08-22 11:24:06 -07:00
Brian Behlendorf
cd72af9c68 Fix 'zpool list -H' error code
Due to an uninitialized variable it was possible for the command
'zpool list -H' to return a non-zero error when there are no pools.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1605
2013-07-23 12:39:05 -07:00
Christer Ekholm
da91c90154 Add missing -v to usage help for zpool list.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2013-07-22 13:39:01 -07:00
Dmitry Khasanov
131cc95ca7 Add FreeBSD 'zpool labelclear' command
The FreeBSD implementation of zfs adds the 'zpool labelclear'
command.  Since this functionality is helpful and straight
forward to add it is being included in ZoL.

References:
  freebsd/freebsd@119a041dc9

Ported-by: Dmitry Khasanov <pik4ez@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1126
2013-07-09 15:58:05 -07:00
Craig Loomis
50fe577d1f Explicitly flush output at end of each zevent
For "zpool events -f" flush stdout to ensure the last zevent
is always printed immediately.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1568
2013-07-08 17:01:16 -07:00
George Wilson
5853fe790d Illumos #3306, #3321
3306 zdb should be able to issue reads in parallel
3321 'zpool reopen' command should be documented in the man
     page and help

Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com>
Reviewed by: Christopher Siden <chris.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

References:
  illumos/illumos-gate@31d7e8fa33
  https://www.illumos.org/issues/3306
  https://www.illumos.org/issues/3321

The vdev_file.c implementation in this patch diverges significantly
from the upstream version.  For consistenty with the vdev_disk.c
code the upstream version leverages the Illumos bio interfaces.
This makes sense for Illumos but not for ZoL for two reasons.

1) The vdev_disk.c code in ZoL has been rewritten to use the
   Linux block device interfaces which differ significantly
   from those in Illumos.  Therefore, updating the vdev_file.c
   to use the Illumos interfaces doesn't get you consistency
   with vdev_disk.c.

2) Using the upstream patch as is would requiring implementing
   compatibility code for those Solaris block device interfaces
   in user and kernel space.  That additional complexity could
   lead to confusion and doesn't buy us anything.

For these reasons I've opted to simply move the existing vn_rdwr()
as is in to the taskq function.  This has the advantage of being
low risk and easy to understand.  Moving the vn_rdwr() function
in to its own taskq thread also neatly avoids the possibility of
a stack overflow.

Finally, because of the additional work which is being handled by
the free taskq the number of threads has been increased.  The
thread count under Illumos defaults to 100 but was decreased to 2
in commit 08d08e due to contention.  We increase it to 8 until
the contention can be address by porting Illumos #3581.

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1354
2013-05-03 16:53:52 -07:00
Brian Behlendorf
8128bd89fb Fix hot spares
The issue with hot spares in ZoL is because it opens all leaf
vdevs exclusively (O_EXCL).  On Linux, exclusive opens cause
subsequent exclusive opens to fail with EBUSY.

This could be resolved by not opening any of the devices
exclusively, which is what Illumos does, but the additional
protection offered by exclusive opens is desirable.  It cleanly
prevents you from accidentally adding an in-use non-ZFS device
to your pool.

To fix this we very slightly relaxed the usage of O_EXCL in
the following ways.

1) Functions which open the device but only read had the
   O_EXCL flag removed and were updated to use O_RDONLY.

2) A common holder was added to the vdev disk code.  This
   allow the ZFS code to internally open the device multiple
   times but non-ZFS callers may not.

3) An exception was added to make_disks() for hot spare when
   creating partition tables.  For hot spare devices which
   are already opened exclusively we skip creating the partition
   table because this must already have been done when the disk
   was originally added as a hot spare.

Additional minor changes include fixing check_in_use() to use
a partition instead of a slice suffix.  And is_spare() was moved
above make_disks() to avoid adding a forward reference.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #250
2013-03-01 13:31:02 -08:00