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Commit Graph

16 Commits

Author SHA1 Message Date
Zdenek Kabelac
460ff472f9 cleanup: typos in test comments 2024-08-30 16:51:15 +02:00
Zdenek Kabelac
f6104adcb6 tests: updates
Pass more args with some 'aux' commands:
wipefs_a, enable_dev, disable_dev
(so it's a bit more efficient using single udev_wait call).
Use prepare_vg instead of prepare_pvs.
2023-07-15 11:05:35 +02:00
Zdenek Kabelac
2fde4b6baa tests: check for lvmdbusd running in the system
Check for running (possibly leftover) lvmdbusd running in the
system - as this daemon may interfere with this test as in this
case both be operating on same  'live' data in /run/lvm.
2023-05-06 22:43:22 +02:00
Zdenek Kabelac
7d419b374a tests: reduce shellcheck warns
Reduce warnings in tests.
2023-02-10 17:50:27 +01:00
David Teigland
264827cb98 lvresize: add new options and defaults for fs handling
The new option "--fs String" for lvresize/lvreduce/lvextend
controls the handling of file systems before/after resizing
the LV.  --resizefs is the same as --fs resize.

The new option "--fsmode String" can be used to control
mounting and unmounting of the fs during resizing.

Possible --fs values:

checksize
  Only applies to reducing size; does nothing for extend.
  Check the fs size and reduce the LV if the fs is not using
  the affected space, i.e. the fs does not need to be shrunk.
  Fail the command without reducing the fs or LV if the fs is
  using the affected space.

resize
  Resize the fs using the fs-specific resize command.
  This may include mounting, unmounting, or running fsck.
  See --fsmode to control mounting behavior, and --nofsck to
  disable fsck.

resize_fsadm
  Use the old method of calling fsadm to handle the fs
  (deprecated.) Warning: this option does not prevent lvreduce
  from destroying file systems that are unmounted (or mounted
  if prompts are skipped.)

ignore
  Resize the LV without checking for or handling a file system.
  Warning: using ignore when reducing the LV size may destroy the
  file system.

Possible --fsmode values:

manage
  Mount or unmount the fs as needed to resize the fs,
  and attempt to restore the original mount state at the end.

nochange
  Do not mount or unmount the fs. If mounting or unmounting
  is required to resize the fs, then do not resize the fs or
  the LV and fail the command.

offline
  Unmount the fs if it is mounted, and resize the fs while it
  is unmounted. If mounting is required to resize the fs,
  then do not resize the fs or the LV and fail the command.

Notes on lvreduce:

When no --fs or --resizefs option is specified:
. lvextend default behavior is fs ignore.
. lvreduce default behavior is fs checksize
  (includes activating the LV.)

With the exception of --fs resize_fsadm|ignore, lvreduce requires
the recent libblkid fields FSLASTBLOCK and FSBLOCKSIZE.
FSLASTBLOCK*FSBLOCKSIZE is the last byte used by the fs on the LV,
which determines if reducing the fs is necessary.
2022-09-13 15:15:05 -05:00
David Teigland
9857b5a3dc add --nohints option
The command will not use the hints file to locate devices for PVs.
It will still do standard hint file invalidation where appropriate.
2021-09-13 10:55:07 -05:00
David Teigland
4df6931c4c tests: adjust for check_devicesfile 2021-08-20 14:06:55 -05:00
Zdenek Kabelac
0ddbc4c5cd tests: bash quotes 2021-03-28 11:39:58 +02:00
Zdenek Kabelac
a55f4a8fe2 tests: use shell comment 2021-03-26 22:12:42 +01:00
David Teigland
f3b723cd8d pvscan: rework to improve PVs without metadata
Restructure the pvscan code, and add new temporary files
that list pvids in a VG, used for processing PVs that
have no metadata.

The new temp files, in /run/lvm/pvs_lookup/<vgname>, allow a
proper pvscan --cache to be done on PVs that have no metadata.
pvscan --cache <dev> is only supposed to read <dev>, but when
<dev> has no metadata, this had not been possible.  The
command had to fall back to scanning all devices to read all
VG metadata to get the list of all PVIDs needed to check for
a complete VG.  Now, the temp file can be used in place of
reading metadata from all PVs on the system.
2020-10-22 13:14:31 -05:00
David Teigland
dddf63ebc3 tests: fix pvck repair in hints.sh 2020-09-04 11:23:25 -05:00
David Teigland
f5a669f314 pvck: repair should clear hints
repairing a pv can cause the hint file to become incorrect
2020-09-02 14:21:17 -05:00
David Teigland
b400353c71 tests hints: update check for io count
Running a reporting command on a VG now includes one
additional read to check the mda_header for any change
to the vg between scan and lock.
2019-11-26 16:52:28 -06:00
David Teigland
99ca06ca46 tests: hints check if strace exists
avoid test failure if test system does not
have strace
2019-05-21 14:24:57 -05:00
David Teigland
5f102b3421 hints: invalidate when pvscan --cache sees a new PV
An idea from Zdenek for better ensuring valid hints by invalidating
them when pvscan --cache <device> sees a new PV, which is a case
where we know that hints should be invalidated.  This is triggered
from systemd/udev logic, and there may be some cases where it would
invalidate hints that the existing methods wouldn't detect.
2019-01-16 15:34:20 -06:00
David Teigland
6620dc9475 add device hints to reduce scanning
Save the list of PVs in /run/lvm/hints.  These hints
are used to reduce scanning in a number of commands
to only the PVs on the system, or only the PVs in a
requested VG (rather than all devices on the system.)
2019-01-15 10:23:47 -06:00