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If the number of stripes requested is incompatible with the requested
type of raid, give an error instead of adjusting it.
If no stripes argument is supplied, continue to use an appropriate
default.
Creating a RaidLV in VGs with very small extent sizes caused
late failure in the kernel giving a not very informative error
message. Catch the attempt early and display failure message
'Unable to create RAID LV: requires minimum VG extent size 4.00 KiB'.
- resoves rhbz1179970
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
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
General RAID and RAID segment type specific checks are added
to merge.c. New static _check_raid_seg() is called on each segment
of a RaidLV (which have just one) from check_lv_segments().
New checks caught some unititialized segment members
which are addressed here as well:
- initialize seg->region_size to 0 in lvcreate.c for raid0/raid0_meta
- initialize list seg->origin_list in lv_manip.c
Commit 3928c96a37 introduced
new defaults for raid number of stripes, which may cause
backwards compatibility issues with customer scripts.
Adding configurable option 'raid_stripe_all_devices' defaulting
to '0' (i.e. off = new behaviour) to select the old behaviour
of using all PVs in the VG or those provided on the command line.
In case any scripts rely on the old behaviour, just set
'raid_strip_all_devices = 1'.
- resolves rhbz1354650
raid0/raid0_meta type LVs don't have a default number of stripes when
created without '-i/--stripes Stripes' whereas other raid types have one.
Patch sets the default for raid0/raid0_meta to 2 stripes.
The default amount of stripes for raid4/5/10 is changed to 2 and for raid6 to 3
rather than using all PVs in the VG or those provided on the command line.
This is to avoid unintended high number of stripes in case of many PVs.
To select a different amount of stripes from the default,
use 'lvcreate -i/--stripes Stripes'.
- resolves rhbz1354650
The lvm fullreport works per VG and as such, the vg, lv, pv, seg and
pvseg subreport is done for each VG. However, if the PV is not part of
any VG yet, we still want to display pv and pvseg subreports for these
"orphan" PVs - so enable this for lvm fullreport's process_each_vg call.
If there's parent processing handle, we don't need to create completely
new report group and status report - we'll just reuse the one already
initialized for the parent.
Currently, the situation where this matter is when doing internal report
to do the selection for processing commands where we have parent processing
handle for the command itself and processing handle for the selection
part (that is selection for non-reporting tools).
This is hotfix for RHBZ: https://bugzilla.redhat.com/1324537
However already the %FREE is not a good fit and we need something
better. Meanwhile make -l%PVS work at least as good as %FREE
for thin-pool.
TODO: this needs rework - it should be allocator to do all the size
decisions at one place.
ATM allocation can't handle stripping and cache pool allocation.
It's not yet even clear what should be actually result.
Until resolved, disable this option (it's been coredumping
inside allocation anyway).
Keep policy name separate from policy settings and avoid
to mangling and demangling this string from same config tree.
Ensure policy_name is always defined.
... Using uninitialized value "lockd_state" when calling "lockd_vg"
(even though lockd_vg assigns 0 to the lockd_state, but it looks at
previous state of lockd_state just before that so we need to have
that properly initialized!)
libdm/libdm-report.c:2934: uninit_use_in_call: Using uninitialized value "tm". Field "tm.tm_gmtoff" is uninitialized when calling "_get_final_time".
daemons/lvmlockd/lvmlockctl.c:273: uninit_use_in_call: Using uninitialized element of array "r_name" when calling "format_info_r_action". (just added FIXME as this looks unfinished?)
If the user provides '-m #' (# > 0) with mappings
raid4/5/6, the command silently creates
'#mirrors * #stripes + #parity' image component pairs.
Patch rejects '-m #' altogether for those mappings
in order to avoid LV creation with unexpected layout.
- resolves bz#1209445
Support error_if_no_space feature for thin pools.
Report more info about thinpool status:
(out_of_data (D), metadata_read_only (M), failed (F) also as health
attribute.)
Support compile type configurable defaults for creation
of sparse volumes.
By default now create 'thin-pools' for sparse volumes.
Use the global/sparse_segtype_default to switch back to old
snapshots if needed.
Apply the same compile logic for newly introduces mirror/raid1 options.
Unlike with thin-pool - with cache we support all args also
directly when create cache volume.
So the result of 'separate' cache-pool creation and setting its
options should give same result as specifying those args
during cache creation.
Cache-pool values are used as defaults if the params are
not specified with cache creation.
