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- closer to the recommendation of man-pages (7) if possible
- Add crossrefs
- Sort options and crossrefs
- Fix default timeout (60 secs) of -t
- Documents -I[auto]
Signed-off-by: Stéphane Aulery <saulery@free.fr>
- Closer to the recommendation of man-pages and groff_man (7) if
possible
- Sort options and crossrefs
- Relocate sub-options on the right places
Signed-off-by: Stéphane Aulery <saulery@free.fr>
lvcreate of thin pools can now use '-n lv vg' like other lv types,
or it can name the new thin pool in the free arg as 'vg/lv', which
is not allowed with other lv types.
The cache mode of a new cache pool is always explicitly
included in the vg metadata. If a cache mode is not
specified on the command line, the cache mode is taken
from lvm.conf allocation/cache_pool_cachemode, which
defaults to "writethrough".
The cache mode can be displayed with lvs -o+cachemode.
Previously, this was the recommended form for creating a thin pool:
lvconvert --thinpool VG/ThinDataLV --poolmetadata VG/ThinMetaLV
but this is confusing, because --thinpool does not actually take
an arg, and is more naturally used to specify an existing thin pool.
The new recommended form is:
lvconvert --type thin-pool --poolmetadata VG/ThinMetaLV VG/ThinDataLV
Previously, this was the recommended form for creating a cache pool:
lvconvert --cachepool VG/CacheDataLV --poolmetadata VG/CacheMetaLV
but this is confusing, because --cachepool does not actually take
an arg, and is more natually used to specify an existing cache pool.
The new recommended form is:
lvconvert --type cache-pool --poolmetadata VG/CacheMetaLV VG/CacheDataLV
This patch adds a new flag --deferred to dmsetup remove. If this flag is
specified and the device is open, it is scheduled to be deleted on
close.
struct dm_info is extended.
The existing dm_task_get_info() is converted into a wrapper around the
new version dm_task_get_info_with_deferred_remove() so existing binaries
can still use the old smaller structure.
Recompiled code will pick up the new larger structure.
From: Mikulas Patocka <mpatocka@redhat.com>
Currently, we have two modes of activation, an unnamed nominal mode
(which I will refer to as "complete") and "partial" mode. The
"complete" mode requires that a volume group be 'complete' - that
is, no missing PVs. If there are any missing PVs, no affected LVs
are allowed to activate - even RAID LVs which might be able to
tolerate a failure. The "partial" mode allows anything to be
activated (or at least attempted). If a non-redundant LV is
missing a portion of its addressable space due to a device failure,
it will be replaced with an error target. RAID LVs will either
activate or fail to activate depending on how badly their
redundancy is compromised.
This patch adds a third option, "degraded" mode. This mode can
be selected via the '--activationmode {complete|degraded|partial}'
option to lvchange/vgchange. It can also be set in lvm.conf.
The "degraded" activation mode allows RAID LVs with a sufficient
level of redundancy to activate (e.g. a RAID5 LV with one device
failure, a RAID6 with two device failures, or RAID1 with n-1
failures). RAID LVs with too many device failures are not allowed
to activate - nor are any non-redundant LVs that may have been
affected. This patch also makes the "degraded" mode the default
activation mode.
The degraded activation mode does not yet work in a cluster. A
new cluster lock flag (LCK_DEGRADED_MODE) will need to be created
to make that work. Currently, there is limited space for this
extra flag and I am looking for possible solutions. One possible
solution is to usurp LCK_CONVERT, as it is not used. When the
locking_type is 3, the degraded mode flag simply gets dropped and
the old ("complete") behavior is exhibited.
