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Commit Graph

25 Commits

Author SHA1 Message Date
Joe Thornber
097d49e73d i) There's now a seperate field in struct logical_volume that stores the
allocation policy.  This can currently take one of three values:

   typedef enum {
        ALLOC_NEXT_FREE,
        ALLOC_STRICT,
        ALLOC_CONTIGUOUS
   } alloc_policy_t;

    Notice that 'SIMPLE' has turned into the slightly more meaningful NEXT_FREE.

ii) Put code into display.[hc] for converting one of these enums to a
    text representation and back again.

ii) Updated the text format so this also has the alloc_policy field.
2002-07-11 14:21:49 +00:00
Joe Thornber
7df3006c6b o Add version number to text format. 2002-07-02 18:47:43 +00:00
Alasdair Kergon
25b733809a Merge with text format branch.
Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.
2002-04-24 18:20:51 +00:00
Alasdair Kergon
15c325f06a o Use new LCK_HOLD flag to indicate whether lock should be held on return
from lock_vol() - otherwise it now attempts to acquire the lock and then
  immediately releases it.
o Extend the id field in struct logical_volume to hold VG uuid + LV uuid
  for format1. This unique lvid can be used directly when calling lock_vol().
o Add the VG uuid to vgcache to make VG uuid lookups possible.  (Another
  step towards using them instead of VG names internally.)
2002-03-05 20:03:09 +00:00
Alasdair Kergon
b5ed53273a Generate LV uuid from lv_number when reading in LVs. 2002-02-21 15:26:44 +00:00
Joe Thornber
d7783cc8b8 o small bug in the format1 export code for snapshots.
o  tidied newlines in the snapshot section of format text.
2002-02-18 11:25:43 +00:00
Joe Thornber
294ddff8a6 o snapshot support for the text format.
The logical_volumes, and snapshots sections of the text format are now
optional.
2002-02-13 13:29:16 +00:00
Joe Thornber
e74999af51 o Add cmd_line field to struct cmd_context
o  Text format now has a description and time field at the top level.

o  archiving and backup set the description appropriately. eg,

   for an archive:

     description = "Created *before* executing 'lvextend test_vg/lvol0 -l +1'."
     creation_time = 1013166332

   for a backup:

     description = "Created *after* executing 'lvextend test_vg/lvol0 -l +1'."
     creation_time = 1013166332

This is preparing the way for a simple vgcfgundo command.
2002-02-08 11:13:47 +00:00
Alasdair Kergon
812c699c8d Basic support for persistent minor numbers;
slightly different from the current LVM1 method.

  lvcreate --persistent y  --minor 10   (to specify when created)
  lvchange --persistent n  (to turn off)
  lvchange --persistent y  --minor 11   (to change)

--persistent uses a new LV status flag stored on disk
minor number is stored on disk the same way as LVM1 does
(but major number stored is 0; any LVM1 major/minor setting gets lost)

  lvchange -ay --minor 12 (to activate using minor 12, regardless of the
                           on-disk setting, which doesn't get changed)

--minor == -m
--persistent == -M
2002-02-01 17:54:39 +00:00
Alasdair Kergon
7ae5a778d5 Basic support for (read-only) partial activation if any PVs are
missing from a VG.  (Linear targets use the device-mapper 'error' target
which returns ioerror; striped targets use '/dev/ioerror' for now - which must
already exist e.g. as a sufficiently large block device version of /dev/zero).
2002-01-30 15:33:12 +00:00
Alasdair Kergon
f53c6aa66e o Basic support for exporting (but importing not completed yet).
o When volume group does not have write flag set, prevent changes to it.
o Preparation for partial activation (not completed yet).
2002-01-29 17:23:33 +00:00
Alasdair Kergon
1176eb2597 Tweak some error message levels. 2002-01-27 21:30:47 +00:00
Joe Thornber
f868d63582 o Similar changes for lv_list. 2002-01-21 16:49:32 +00:00
Joe Thornber
cc282870dd o Changed
struct pv_list {
	struct list list;
	struct physical_volume pv;
   };

   to

   struct pv_list {
	struct list list;
	struct physical_volume *pv;
   };


o  New function in toollib 'create_pv_list', which creates a list of pv's
   from a given command line array of pv's.

o  Changed lvcreate/extend to use this (fixes lvextend [pv list] bug).
2002-01-21 16:05:23 +00:00
Joe Thornber
22d1879c60 o Set the segment counter back to 1, for a new LV. 2002-01-16 11:34:29 +00:00
Joe Thornber
5a72a50367 o vgcreate wasn't setting vg->cmd 2002-01-07 15:27:55 +00:00
Joe Thornber
f5549805b6 o tidy up renaming of archive files. 2002-01-07 14:21:33 +00:00
Alasdair Kergon
b94703a187 Put device name in quotes. 2002-01-03 17:47:48 +00:00
Alasdair Kergon
5671fce111 Fix final comma in arrays. 2002-01-03 12:43:01 +00:00
Alasdair Kergon
41b2fd5f4d o Use lvm_snprintf wherever return value is used
o Add parameters to set retention limits for backups
2001-12-31 19:09:51 +00:00
Alasdair Kergon
52f71ce77b Fixes for compilation. 2001-12-31 15:14:44 +00:00
Joe Thornber
2041d905a9 o Added a quick vgcfgbackup, needs parameters as yet. 2001-12-20 16:05:14 +00:00
Joe Thornber
9f44467d44 o sync backup changes 2001-12-20 11:52:54 +00:00
Joe Thornber
57ba050c58 o flags.c reads and writes a status bitset 2001-12-11 12:18:56 +00:00
Joe Thornber
d96dea9abf o Split import-export.c into two files. 2001-12-11 12:16:58 +00:00