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For each section 8 man page, a .8_gen file is created from one of:
.8_main - Old-style man page - content used directly
.8_des and .8_end - Description and end section of a generated page
.8_pregen - Pre-generated page used if the generator fails
Other man sections are not generated and use the suffix .5_main or .7_main.
Developers should use 'make generate' to regenerate the .8_pregen files.
Require that the path argument to dmfilemapd be an absolute path
and document this in tool output, libdevmapper.h and dmfilemapd.8.
The check is also enforced by dm_stats_start_filemapd() to avoid
forking a new process with an invalid path argument.
Add a warning about maximum supported numbers of stripes
with striped LVs realtive to RAID conversions.
Add examples for a more elaborate, multi-step conversion
from linear to striped (and vice versa).
Shrink lvs examples output.
Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
Add examples for reshaping number of stripes
and converting from raid6 to striped to raid10.
Remove trailing spaces.
Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
Clean up and correct the details around --extents and --size.
lvcreate/lvresize/lvreduce/lvextend all now display the
extents option in usages.
The Size and Number value variables for --size and --extents
are now displayed without the [+|-] prefix for lvcreate.
For this syntax:
lvconvert --thinpool LV1 --poolmetadata LV2
lvconvert --cachepool LV1 --poolmetadata LV2
Restore the metadata swapping behavior in addition to
the pool creation behavior. When LV1 is already a pool,
the metadata LV will be swapped with LV2.
When LV1 is not a pool, it will be converted to a
pool using the specified LV for metadata.
This syntax is no longer advertised because of the
ambiguous behavior. The primary syntaxes for pool
creation and metadata swapping will be the advertised
methods.
Kernel 4.10 (dm-crypt v1.15.0) and later supports loading device
tables with crypt segment having key in kernel keyring retention
service.
dmsetup hid key section of tables output. With this patch dmsetup
no longer hides key section if it detects kernel key description
instead of hex byte representation of key itself.
Unconditionally guard there is at least 1/4 of metadata volume
free (<16Mib) or 4MiB - whichever value is smaller.
In case there is not enough free space do not let operation proceed and
recommend thin-pool metadata resize (in case user has not
enabled autoresize, manual 'lvextend --poolmetadatasize' is needed).
Enforce mirror/raid0/1/10/4/5/6 type specific maximum images when
creating LVs or converting them from mirror <-> raid1.
Document those maxima in the lvcreate/lvconvert man pages.
- resolves rhbz1366060
Currently, the output is separated in 3 parts and each part can go into
a separate and user-defined file descriptor:
- common output (stdout by default, customizable by LVM_OUT_FD environment variable)
- error output (stderr by default, customizable by LVM_ERR_FD environment variable)
- report output (stdout by default, customizable by LVM_REPORT_FD environment variable)
For example, each type of output goes to different output file:
[0] fedora/~ # export LVM_REPORT_FD=3
[0] fedora/~ # lvs fedora vg/abc 1>out 2>err 3>report
[0] fedora/~ # cat out
[0] fedora/~ # cat err
Volume group "vg" not found
Cannot process volume group vg
[0] fedora/~ # cat report
LV VG Attr LSize Layout Role CTime
root fedora -wi-ao---- 19.00g linear public Wed May 27 2015 08:09:21
swap fedora -wi-ao---- 500.00m linear public Wed May 27 2015 08:09:21
Another example in LVM shell where the report goes to "report" file:
[0] fedora/~ # export LVM_REPORT_FD=3
[0] fedora/~ # lvm 3>report
(in lvm shell)
lvm> vgs
(content of "report" file)
[1] fedora/~ # cat report
VG #PV #LV #SN Attr VSize VFree
fedora 1 2 0 wz--n- 19.49g 0
(in lvm shell)
lvm> lvs
(content of "report" file)
[1] fedora/~ # cat report
VG #PV #LV #SN Attr VSize VFree
fedora 1 2 0 wz--n- 19.49g 0
LV VG Attr LSize Layout Role CTime
root fedora -wi-ao---- 19.00g linear public Wed May 27 2015 08:09:21
swap fedora -wi-ao---- 500.00m linear public Wed May 27 2015 08:09:21
Although the use of the first region_id in a group to store the
DMS_GROUP=... aux_data tag is an internal implementation detail,
it has a user visible consequence in that deleting this region will
cause the group to disappear: add an explanation of this to the
'group' command and 'Regions, areas, and groups' section.
The MD raid6 personality being used to drive lvm raid6 LVs does
read-modify-write updates to any stripes and thus relies on correct
P and Q Syndromes being written during initial synchronization or
it may fail reconstructing proper user data in case of SubLVs failing.
We may not allow the '--nosync' option on
creation of raid6 LVs for that reason.
Update/fix 'man lvcreate' in that regard.
add lvcreate-raid-nosync.sh test script.
- Resolves rhbz1358532
'lvchange --resync LV' or 'lvchange --syncaction repair LV' request the
RAID layout specific parity blocks in raid4/5/6 to be recreated or the
mirrored blocks to be copied again from the master leg/copy for raid1/10,
thus not allowing a rebuild of a particular PV.
Introduce repeatable option '--[raid]rebuild PV' to allow to request
rebuilds of specific PVs in a RaidLV which are known to contain corrupt
data (e.g. rebuild a raid1 master leg).
Add test lvchange-rebuild-raid.sh to test/shell doing rebuild
variations on raid1/10 and 5; add aux function check_status_chars
to support the new test.
- Resolves rhbz1064592
with respect to the changed, configurable default behaviour
introduced with commit 7eb7909193.
E.g. raid default of 2 stripes rather than number of PVs in the VG
or on the command line minus one.
The syntax for converting an LV to a thin LV
included an unnecessary --thin option. I was
probably still confused about these options
when writing this.
Synopsis are very useful for quick orientation and also
we provide then for all remaining command.
Also list ALL supported options in a single ordered list,
user should not seek for them.
blkdeactivate -m disablequeueing causes "multipathd disablequeueing maps"
call inside blkdeactivate script before deactivating devices. This
avoids a situation where blkdeactivate may wait for paths to appear if
multipath is set to queueing and there's a stack of other devices and/or
mount points on top of such multipath device.
See also https://bugzilla.redhat.com/show_bug.cgi?id=1344381.
When logging to epoch files we would like to prevent creating too large
log files otherwise a spining command could fulfill available space
very easily and quickly.
Limit for to 100000 per command.
Make it clear that the "aux data" presented in reports is the user
data stored in the field (and does not include any library-internal
state such as group descriptors) by renaming the field to user_data
and changing the heading to "UserData".
