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Commit Graph

91 Commits

Author SHA1 Message Date
Alasdair Kergon
d1d9800ef1 Refactoring. 2002-11-18 14:01:16 +00:00
Alasdair Kergon
5f05971a84 Fix LVM1 backwards compatibility issue when LV with a low LV number is deleted. 2002-05-23 11:37:51 +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
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
Heinz Mauelshagen
f7ff4d005f Zero gap after PV structure on write to disk in order to make non LVM tools happier (AED's idea and patch for LVM1) 2002-01-29 15:52:11 +00:00
Alasdair Kergon
1176eb2597 Tweak some error message levels. 2002-01-27 21:30:47 +00:00
Alasdair Kergon
ba76e378e9 Ignore all except one PV found with the same UUID. Use one which
has the md major number if there is such.
2002-01-24 13:36:33 +00:00
Alasdair Kergon
d518bc39f3 Avoid using VG metadata on PVs that are not in VGs. 2002-01-23 15:50:34 +00:00
Alasdair Kergon
add7dc2d5a o pvcreate --uuid to specify the uuid (required before using vgcfgrestore
onto a new device).  uuid specified must not already exist on the system.
o More message tidying.
o When checking for label, only read PV metadata.
o Add ataraid.  [Needs moving into config/defaults files.]
2002-01-16 18:10:08 +00:00
Alasdair Kergon
93ea39697f o Don't update vgcache when (not really) writing in test mode.
o Don't continue iterating through a possibly-deleted list.
2002-01-16 14:43:27 +00:00
Joe Thornber
c6cc24ea3f o _read_id function for import.c 2002-01-10 18:12:26 +00:00
Alasdair Kergon
839f595181 Handle orphan PVs too, so hints remain valid after vgreduce. 2001-12-13 15:08:58 +00:00
Alasdair Kergon
faa556e759 Add internal cache holding a 'hint' list of the PVs belonging to each VG.
A substantial speed-up - particularly in readline mode.
If the hints turn out to be wrong, the relevant parts get thrown away.
vgscan destroys it totally.  In both cases it then rebuilds itself as
required.
2001-12-13 00:07:29 +00:00
Alasdair Kergon
b9adad95c8 Fix a memory smash. 2001-11-27 23:12:06 +00:00
Alasdair Kergon
5238b63f1a Miscellaneous tidying 2001-11-14 13:52:38 +00:00
Joe Thornber
29aa6d5850 o Added dev_open and dev_close functions
o  Changed disk-rep to use these

o  if NDEBUG is not defined the dev_cache will check for open devices on
   teardown.

I was hoping this would speed things up.  But I'm still getting:

reti:/home/joe/sistina/LVM2/tools# time ./lvm vgchange -a n
  Volume group vg0 successfully changed

real    0m5.751s
user    0m0.060s
sys     0m0.070s

even though I have only 1 device with the vg on it passing the filters.
2001-11-14 10:01:52 +00:00
Joe Thornber
78fc479a69 o Deal with sparse lv arrays (on disk)
o  new fn. dev_zero which zero's an area of a device
2001-11-13 18:52:52 +00:00
Joe Thornber
f7cbb38dbb o check result of an allocation 2001-11-12 16:00:52 +00:00
Alasdair Kergon
7858f6fb16 o Added lvextend
o Full signed arguments to lvreduce/lvextend
o Consistent lv_number/pe map use
o Populate pv->pe_allocated
o Fixes for allocation/writing of multiple LVs
2001-11-09 22:01:04 +00:00
Alasdair Kergon
f047219b23 Link in the activation library. 2001-11-02 16:28:04 +00:00
Alasdair Kergon
0a5e4a1442 o Changes to activation interface
o Add pointer lv->vg
o Some naming tweaks to improve clarity
2001-10-31 17:59:52 +00:00
Joe Thornber
1b9fcf48b1 o LGPL list implementation 2001-10-31 12:47:01 +00:00
Alasdair Kergon
cfd658dab0 lvremove 2001-10-29 13:52:23 +00:00
Joe Thornber
c7f0b573ac o use dev_name(dev) to get the name of a device, this operation is cheap
since it just get's the first alias.
2001-10-25 14:04:18 +00:00
Alasdair Kergon
a381c45a6e vgchange 2001-10-16 16:25:28 +00:00
Joe Thornber
491ae26f6c o pe_start wasn't being set properly when exporting to disk
o added a check for lv's with null lv_name

o setup pv->lv_cur correctly

o test program for vg_write
2001-10-11 10:08:44 +00:00
Alasdair Kergon
2d9133bbbd standardise some log messages 2001-10-10 16:36:32 +00:00
Joe Thornber
7ca11f8f96 o sizeof(NAME_LEN), don't do that 2001-10-10 13:24:16 +00:00
Joe Thornber
0db56c6b55 o dev_write 2001-10-10 13:03:10 +00:00
Alasdair Kergon
90ae9fe928 Tidy metadata diagnostic messages. 2001-10-10 12:45:20 +00:00
Joe Thornber
214e32c96e o return data not 1 in read_ov 2001-10-10 12:42:03 +00:00
Joe Thornber
4d468cffcd o check for orphaned pv's when reading 2001-10-10 12:28:10 +00:00
Joe Thornber
de9acc04f6 o pv_write for orphan pv's 2001-10-10 10:05:29 +00:00
Joe Thornber
6320fd9e52 o add munging for format1 and 2 2001-10-10 09:36:29 +00:00
Joe Thornber
47bd29840d o pv_Read works 2001-10-09 08:58:52 +00:00
Joe Thornber
f5f8443131 o read_vg works (or so it claims) 2001-10-08 16:08:16 +00:00
Joe Thornber
812efa0f48 o get things compiling 2001-10-08 09:45:16 +00:00
Joe Thornber
06985de900 o replace {stack; return 0;}'s with a macro (just for this file). 2001-10-05 15:48:05 +00:00
Joe Thornber
9d3f8b7144 o low level write path 2001-10-05 15:20:40 +00:00
Joe Thornber
3840b20ac9 o vg_read for format1 2001-10-04 17:48:55 +00:00