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187 Commits

Author SHA1 Message Date
Jonathan Earl Brassow
72e0743621 This patch adds the capability to split off a mirror legs.
It is pretty much the same as reducing the number of
mirror legs, but we just don't delete them afterwards.

The following command line interface is enforced:
  prompt> lvconvert --splitmirror <n> -n <name> <VG>/<LV>
where 'n' is the number of images to split off, and
where 'name' is the name of the newly split off logical volume.

If more than one leg is split off, a new mirror will be the
result.  The newly split off mirror will have a 'core' log.
Example:
[root@bp-01 LVM2]# !lvs
lvs -a -o name,copy_percent,devices
  LV            Copy%  Devices
  lv            100.00 lv_mimage_0(0),lv_mimage_1(0),lv_mimage_2(0),lv_mimage_3(0)
  [lv_mimage_0]        /dev/sdb1(0)
  [lv_mimage_1]        /dev/sdc1(0)
  [lv_mimage_2]        /dev/sdd1(0)
  [lv_mimage_3]        /dev/sde1(0)
  [lv_mlog]            /dev/sdi1(0)
[root@bp-01 LVM2]# lvconvert --splitmirrors 2 --name split vg/lv /dev/sd[ce]1
  Logical volume lv converted.
[root@bp-01 LVM2]# !lvs
lvs -a -o name,copy_percent,devices
  LV               Copy%  Devices
  lv               100.00 lv_mimage_0(0),lv_mimage_2(0)
  [lv_mimage_0]           /dev/sdb1(0)
  [lv_mimage_2]           /dev/sdd1(0)
  [lv_mlog]               /dev/sdi1(0)
  split            100.00 split_mimage_0(0),split_mimage_1(0)
  [split_mimage_0]        /dev/sde1(0)
  [split_mimage_1]        /dev/sdc1(0)

It can be seen that '--splitmirror <n>' is exactly the same
as '--mirrors -<n>' (note the minus sign), except there is the
additional notion to keep the image being detached from the
mirror instead of just throwing it away.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
2010-01-08 22:00:31 +00:00
Mike Snitzer
7a8fa6aaab Add a [--poll {y|n}] flag to vgchange and lvchange to control whether
the background polldaemon is allowed to start.  It can be used
standalone or in conjunction with --refresh or --available y.

Control over when the background polldaemon starts will be particularly
important for snapshot-merge of a root filesystem.

Dracut will be updated to activate all LVs with: --poll n

The lvm2-monitor initscript will start polling with: --poll y

NOTE: Because we currently have no way of knowing if a background
polldaemon is active for a given LV the following limitations exist and
have been deemed acceptable:
1) it is not possible to stop an active polldaemon; so the lvm2-monitor
   initscript doesn't stop running polldaemon(s)
2) redundant polldaemon instances will be started for all specified LVs
   if vgchange or lvchange are repeatedly used with '--poll y'

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2010-01-05 20:56:51 +00:00
Dave Wysochanski
7c638cc236 Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
Option --all is only partially documented currently, so document in all
commands.  Also make {pv|vg|lv}{display|s} man pages consistent with help
output.  Remove ununsed 'disk_ARG' parameter.  Leave --trustcache out of
the man page output.  Update --units argument to show all possible units.
2009-10-26 14:37:09 +00:00
Dave Wysochanski
0ddb66efba Add --pvmetadatacopies as a synonym for --metadatacopies in various commands.
Going forward, we would like to allow users to specify the total
number of metadatacopies in a VG rather than on a per-PV basis.  In
order to facilitate that, introduce --pvmetadatacopes to replace
--metadatacopies everywhere.  We still allow --metadatacopies for
pv commands, but require --pvmetadatacopies for vg commands.
Eventually we will introduce --vgmetadatacopies.  Once we do that,
we should either deprecate --metadatacopies or make it a synonym based
on the command (pvmetadatacopies for pv commands, and vgmetadatacopies
for vg commands).  The latter option would likely just require a simple
'strncpy' check against cmd->command->name to qualify the merge_synonym
call.

Update nightly tests to cover the pvmetadatacopies synonym.

Note that this patch is the result of an eariler review comment for
the implicit pvcreate patches.  Should apply cleanly on top of the
implicit pvcreate patches (I applied after patch 10/10 in that series).

NOTE: This patch will require --pvmetadatacopies for vgconvert as
--metadatacopies is no longer accepted.
2009-10-05 20:55:56 +00:00
Dave Wysochanski
a7dfe4f24d Update help messages for vgextend / vgcreate to mention PHYSICAL DEVICE OPTIONS. 2009-10-05 20:22:58 +00:00
Dave Wysochanski
2e201936e4 Add implicit pvcreate support to vgcreate and vgextend.
Adds implicit pvcreate support when calling vgcreate or vgextend with
device paths that are not yet PVs.  This changes the behavior of vgcreate
and vgextend from failing with an error message to implicitly pvcreating.
2009-10-05 20:04:08 +00:00
Peter Rajnoha
49886d0982 Add --noudevsync option for relevant LVM tools. 2009-08-04 15:53:04 +00:00
Mike Snitzer
04b2a4bdcf Add --dataalignmentoffset to pvcreate to shift start of aligned data area
Adds pe_align_offset to 'struct physical_volume'; is initialized with
set_pe_align_offset().  After pe_start is established pe_align_offset is
added to it.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2009-07-30 17:45:28 +00:00
Mike Snitzer
c1060e13a7 Allow commandline sizes to be specified in terms of bytes and sectors.
Update the man pages to document size units uniformly.
2009-07-06 19:13:26 +00:00
Alasdair Kergon
476d463348 pre-release tidy up 2009-06-30 18:39:31 +00:00
Milan Broz
c26488d348 Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO (mornfall)
Introduce lvconvert --use_policies (mornfall)
2009-06-04 12:01:15 +00:00
Alasdair Kergon
154753db8b Make --snapshot optional with lvcreate --virtualsize.
Generalise --virtualoriginsize to --virtualsize.
2009-05-27 16:30:29 +00:00
Alasdair Kergon
87f42fda5e Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
Add lvs origin_size field.
Fix linux configure --enable-debug to exclude -O2.

Still a few rough edges, but hopefully usable now:
  lvcreate -s vg1 -L 100M --virtualoriginsize 1T
2009-04-25 01:17:59 +00:00
Petr Rockai
eb23252b61 Implement, test and document (first iteration of) lvconvert --repair. 2009-04-23 16:56:21 +00:00
Milan Broz
772cac09e3 Enable use of cached metadata for pvs & pvdisplay.
Currently PV commands, which performs full device scan, repeatly
re-reads PVs and scans for all devices.

This behaviour can lead to OOM for large VG.

This patch allows using internal metadata cache for pvs & pvdisplay,
so the commands scan the PVs only once.
(We have to use VG_GLOBAL otherwise cache is invalidated on every
VG unlock in process_single PV call.)
2009-04-08 12:53:20 +00:00
Alasdair Kergon
8929ce6651 Add --dataalignment to pvcreate to specify alignment of data area. (mbroz)
This patch is not fully tested and leaves some related bugs unfixed.

Intended behaviour of the code now:

  pe_start in the lvm2 format PV label header is set only by pvcreate (or
vgconvert -M2) and then preserved in *all* operations thereafter.

  In some specialist cases, after the PV is added to a VG, the pe_start
field in the VG metadata may hold a different value and if so, it
overrides the other one for as long as the PV is in such a VG.

  Currently, the field storing the size of the data area in the PV label
header always holds 0.  As it only has meaning in the context of a
volume group, it is calculated whenever the PV is added to a VG (and can
be derived from extent_size and pe_count in the VG metadata).
2009-02-22 19:00:26 +00:00
Peter Rajnoha
da1ba4ed88 Add "--refresh" functionality to vgchange and vgmknodes. 2008-12-22 09:00:51 +00:00
Alasdair Kergon
87ec948433 . 2008-09-19 07:18:03 +00:00
Alasdair Kergon
8c5bcdabab Improve the way VGs with PVs missing are handled so manual intervention
is required in fewer circumstances.  (mornfall)
2008-09-19 06:42:00 +00:00
Alasdair Kergon
1f787aca28 Add --rows to reports. 2008-06-24 22:48:53 +00:00
Alasdair Kergon
30ef4c738a Add --unquoted to reporting tools. 2008-06-24 21:21:04 +00:00
Alasdair Kergon
dc868e56c9 Add --force to lvextend and lvresize. 2008-06-12 13:24:02 +00:00
Alasdair Kergon
ec40d92889 post-release 2008-06-06 19:28:35 +00:00
Alasdair Kergon
697e3bb2df back out unnecessary changes for this release 2008-06-06 17:36:19 +00:00
Alasdair Kergon
eddc0f3307 post-release - reinstate incomplete enhancements 2008-04-29 16:11:28 +00:00
Alasdair Kergon
04ed52f6a0 pre-release (bug fixes only - enhancements excluded) 2008-04-29 15:58:25 +00:00
Alasdair Kergon
f419a87150 Add --prefixes to reporting tools for field name prefix output format.
E.g. lvs --prefixes --noheadings --unbuffered --units m --nosuffix

(Used '--prefixes' for now, but I'm looking for a better name.)
2008-04-20 00:15:08 +00:00
Dave Wysochanski
85f5392e52 Update vgsplit to take "-n LogicalVolumeName" on the commandline. 2008-04-09 13:47:13 +00:00
Alasdair Kergon
bf7dea978e Add per-command flags to control which commands use the VG metadata cache. 2008-04-02 21:23:39 +00:00
Dave Wysochanski
1ce224d13f Fix vgsplit - print error if vgcreate option given w/existing vg destination
Fix vgsplit - reject split if metadata types or clustered attributes differ
Fix vgsplit - remove physicalextentsize option
Add vgsplit test cases
2008-01-22 02:48:53 +00:00
Dave Wysochanski
6ab424acda Remove unused 'list' param from vgsplit - conflict with maxlogicalvolumes param.
Initialize lvm command getopt buffer to zero before building options string.
Bugzilla: bz251992

---
 man/vgsplit.8      |    3 +--
 tools/commands.h   |    3 +--
 tools/lvmcmdline.c |    1 +
 3 files changed, 3 insertions(+), 4 deletions(-)
2008-01-16 17:14:56 +00:00
Dave Wysochanski
b8daca8570 Allow vgcreate options as input to vgsplit when new vg is split destination. 2008-01-14 21:07:58 +00:00
Alasdair Kergon
ba0c495db7 lvconvert uses polldaemon now 2007-12-22 12:13:29 +00:00
Alasdair Kergon
b4068515e8 Enhance the management of readahead settings. 2007-11-09 16:51:54 +00:00
Dave Wysochanski
dfef7f6942 Add %PVS extents option to lvresize, lvextend, and lvcreate. 2007-09-20 21:39:08 +00:00
Dave Wysochanski
f603fe64bd Modify lvremove to prompt for removal if LV active on other cluster nodes.
Add '-f' to vgremove to force removal of VG even if LVs exist.
Update vgremove man page for '-f'.
2007-08-28 16:14:49 +00:00
Alasdair Kergon
edb3374d32 Clean up mirrorlog argument processing.
Only permit --force, --verbose and --debug arguments to be repeated.
2007-08-21 19:46:36 +00:00
Alasdair Kergon
be6845999b Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Jonathan Earl Brassow
64119287c3 - change new log_ARG variable to more explicit mirrorlog_ARG. 2007-08-09 21:25:08 +00:00
Jonathan Earl Brassow
19583d115c This patch changes the arguments that specify the mirror
log type.  Previously, we had a '--corelog' argument that
would change the default type from 'disk' to 'core'.  I
think that creates too much confusion - especially when
doing conversions on mirrors.

The new argument '--log' takes either "disk" or "core"
as a parameter.  This could be expanded in the future
for additional logging types as well.

Examples:
# Creating a 2-way mirror
$> lvcreate -m1 ... # implicitly use default disk logging
$> lvcreate -m1 --log disk ... # explicit disk logging
$> lvcreate -m1 --log core ... # specify core logging
$> lvcreate -m1 --corelog ... # old way still works

# Conversion examples
$> lvconvert --log core ... # convert to core logging
$> lvconvert --log disk ... # convert to disk logging
$> lvconvert -mX --corelog ... # old way still works
$> lvconvert -mX ... # old way of converting to disk logging still works

Changes are reflected in the man pages.
2007-08-01 21:01:06 +00:00
Alasdair Kergon
53c774b948 Add --ignoremonitoring to disable all dmeventd interaction. 2007-06-18 14:14:33 +00:00
Dave Wysochanski
d915579c6b Update pvck to read labels on disk, with flexible --labelsector
parameter.

--
2007-04-25 20:03:16 +00:00
Dave Wysochanski
cc5a4e1d38 Add stub for pvck, a command to check physical volume consistency. 2007-03-30 21:00:26 +00:00
Alasdair Kergon
147b7d5eac Add --clustered to man pages. 2007-01-23 13:08:34 +00:00
Alasdair Kergon
2eeb2a1f54 dumpconfig accepts a list of configuration variables to display.
Change dumpconfig to use --file to redirect output to a file.
2007-01-09 23:22:31 +00:00
Alasdair Kergon
a89d601463 Add some missing bounds checks on 32 bit extent counters.
Add Petabyte and Exabyte support.
Fix lvcreate error message when 0 extents requested.
2006-11-10 18:24:11 +00:00
Alasdair Kergon
99f247f887 resync alphabetical order 2006-10-24 17:19:48 +00:00
Alasdair Kergon
e51d50a11e try forcesync -> resync 2006-10-24 17:18:25 +00:00
Alasdair Kergon
04e023be19 Add lvchange --forcesync. 2006-10-23 23:03:55 +00:00
Alasdair Kergon
b42eb4c376 Accept regionsize with lvconvert. 2006-10-07 23:04:36 +00:00
Alasdair Kergon
34fadac485 Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
e.g. lvcreate -l 100%FREE to create an LV using all available space.
     lvextend -l 50%LV to increase an LV by 50% of its existing size.
     lvcreate -l 20%VG to create an LV using 20% of the total VG size.
2006-09-26 09:35:43 +00:00
Alasdair Kergon
e95d828454 Add --maxphysicalvolumes to vgchange. 2006-08-16 14:41:42 +00:00
Alasdair Kergon
e3ad1d19d5 Add --trustcache option to reporting commands in preparation for supporting
event-driven model.  Without changes to the way the cache gets updated, the
option is currently unreliable without a global lock to prevent any lvm2
commands from running concurrently.
2006-08-01 14:56:33 +00:00
Alasdair Kergon
3e3d5d8593 Add --monitor to vgcreate and lvcreate to control dmeventd registration.
Propagate --monitor around cluster.
Filter LCK_NONBLOCK in clvmd lock_vg.
2006-05-12 19:16:48 +00:00
Alasdair Kergon
de82843391 Add --nosync to lvcreate with LV flag NOTSYNCED. 2006-05-11 20:03:40 +00:00
Alasdair Kergon
f17f6814c9 Add --corelog to lvcreate and lvconvert. 2006-05-11 18:54:04 +00:00
Alasdair Kergon
72b2cb613a Make SIZE_SHORT the default for display_size().
Fix some memory leaks in error paths found by coverity.
Use C99 struct initialisers.
Move DEFS into configure.h.
Clean-ups to remove miscellaneous compiler warnings.
2006-05-09 21:23:51 +00:00
Alasdair Kergon
f855ac3807 Add --partial to pvs. 2006-04-13 17:51:40 +00:00
Alasdair Kergon
1c8b86c7d5 Support lvconvert -s. 2006-04-05 20:43:23 +00:00
Alasdair Kergon
c9dcba6b16 Add --mirrorsonly arg to vgreduce. (Doesn't handle mirrors yet.) 2005-12-21 21:21:45 +00:00
Alasdair Kergon
e2619d9ec1 more lvconvert mirror code 2005-11-29 18:20:23 +00:00
Alasdair Kergon
3bf5f6f575 A pvresize implementation (Zak Kipling). 2005-10-31 02:37:29 +00:00
Alasdair Kergon
191abde97e lvscan -a 2005-10-17 16:41:38 +00:00
Alasdair Kergon
190f6945ee Fix lvconvert PV parameter in help string. 2005-08-04 01:50:17 +00:00
Alasdair Kergon
1a1f3d3efe Introduce lvconvert. So far only removes mirror images. 2005-06-06 17:12:08 +00:00
Alasdair Kergon
ffb0e5387b Allow mirror images to be resized. 2005-06-03 19:48:19 +00:00
Alasdair Kergon
8211a13ce0 Always insert an intermediate layer for mirrors.
Suppress hidden LVs from reports unless --all is given.
Use square brackets for hidden LVs in reports.
Centralise restrictions on LV names.
2005-06-03 14:49:51 +00:00
Alasdair Kergon
60f13f01d2 Basic support for mirrors. 2005-06-01 16:51:55 +00:00
Alasdair Kergon
c54a940540 Initial pv_segment code. 2005-04-19 20:58:25 +00:00
Alasdair Kergon
66278a80b1 vgchange --physicalextentsize (but only if it's an exact fit - may need to
use pvmove first)
2005-04-18 14:56:42 +00:00
Alasdair Kergon
0a0f13e600 Add --ignorelockingfailure to vgmknodes. 2005-04-04 14:44:49 +00:00
Alasdair Kergon
343a8c920d Add clustered attribute so vgchange can identify clustered VGs w/o locking. 2005-03-21 22:55:12 +00:00
Alasdair Kergon
200ef4db90 Add -a to pvdisplay -C. 2005-03-21 14:47:36 +00:00
Alasdair Kergon
421c2a6aed Remove unused -f from pvmove 2005-02-02 14:31:48 +00:00
Alasdair Kergon
2245e1c41f pvcreate wipes first 4 sectors unless given --zero n. 2005-01-05 17:25:25 +00:00
Alasdair Kergon
bc0d0ce072 Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now. 2004-12-21 21:40:36 +00:00
Alasdair Kergon
63bea03ed1 More man page updates. 2004-11-16 18:09:32 +00:00
Alasdair Kergon
d6cf43252e Update some man pages. 2004-11-12 15:59:09 +00:00
Alasdair Kergon
156dd4f1ec New commands 'segtypes' and 'formats'. 2004-09-14 16:42:46 +00:00
Alasdair Kergon
00b47204e0 Allow pvmove to move data within the same PV. 2004-09-14 13:59:17 +00:00
Alasdair Kergon
9bd40d31d7 Update pvmove prototype. 2004-08-18 18:49:29 +00:00
Alasdair Kergon
bcd4e5d50d Remove duplicate line in pvremove help text. 2004-08-17 22:06:06 +00:00
Alasdair Kergon
c29d24650d Display all filtered devices, not just PVs, with pvs -a. 2004-06-19 19:27:00 +00:00
Alasdair Kergon
1a9ea74d2d lvresize + fsadm support - needs testing 2004-06-15 17:23:49 +00:00
Alasdair Kergon
a0a23eff4b Rename allocation policies; add --alloc to cmdline; LV inherits from VG. 2004-05-18 22:12:53 +00:00
Alasdair Kergon
1832f310ac Add --type to lvcreate/resize.
Add virtual segment types, zero and error.

A large sparse device can be constructed as a writeable snapshot of a large
zero device.
2004-05-11 16:01:58 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
71b9fadf65 lvchange --refresh 2004-03-26 21:24:03 +00:00
Alasdair Kergon
acd03445c3 Add --nolocking option for read operations if locking is failing/unavailable. 2004-03-26 12:09:33 +00:00
Alasdair Kergon
cf6dd25126 tagging 2004-03-08 17:19:15 +00:00
Alasdair Kergon
15e6db353d pv/vgchange --uuid to change (non-random) UUIDs to random values 2004-01-13 18:42:05 +00:00
Alasdair Kergon
5a8fa8c91f vgscan --mknodes 2003-11-14 14:03:48 +00:00
Alasdair Kergon
dcc31da516 dumpconfig to dump active configuration 2003-10-15 20:17:19 +00:00
Alasdair Kergon
57c74fb5af Missing ] in pvmove usage display 2003-09-15 15:01:36 +00:00
Alasdair Kergon
0b946db909 Restrict active lvchange -My with -f 2003-07-11 17:10:19 +00:00
Alasdair Kergon
3a61b05422 --abort --background 2003-05-06 12:08:58 +00:00
Alasdair Kergon
43ecb8ffe4 Add pvmove 2003-04-30 15:28:17 +00:00
Alasdair Kergon
27f364af95 Allow for specification of major number as well as minor. 2003-04-02 19:14:43 +00:00
Alasdair Kergon
a421f74371 vgreduce --removemissing to remove missing PVs & deps & make VG consistent 2003-01-17 21:04:26 +00:00
Alasdair Kergon
4c64ed4ced New column-based reporting tools: lvs, pvs & vgs. 2002-12-12 20:55:49 +00:00