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Keep the flag whether given thin pool argument has been given on command
line or it's been 'estimated'
Call of update_pool_params() must not change cmdline given args and
needs to know this info.
Since there is a need to move this update function into /lib, we cannot
use arg_count().
FIXME: we need some generic mechanism here.
For example, the old call and reference:
find_config_tree_str(cmd, "devices/dir", DEFAULT_DEV_DIR)
...now becomes:
find_config_tree_str(cmd, devices_dir_CFG)
So we're referring to the named configuration ID instead
of passing the configuration path and the default value
is taken from central config definition in config_settings.h
automatically.
If '--mirrors/-m' and '--stripes/-i' are used together when creating
a logical volume, mirrors-over-stripes is currently chosen. The user
can override this by using the '--type raid10' option on creation.
However, we want a place where we can set the default behavior to
'raid10' explicitly - similar to the "mirror" and "raid1" tunable,
mirror_segtype_default.
A follow-on patch should use this new setting to change the default
from "mirror" to "raid10", as this is the preferred segment type.
We have been using 'mirror_region_size' in lvm.conf as the default region
size for RAID logical volumes as well as mirror logical volumes. Since,
"raid" is more inclusive and representative than "mirror", I have changed
the name of this setting. We must still check for the old setting and warn
the user if we are overriding it with the new setting if both happen to be
present.
Similar to the way the 'mirror', 'raid1' and 'raid10' segment types set
the number of mirrors to 2 ('-m 1') if the argument is not specified,
here we set the number of stripes to 2 if not given on the command line
when creating a RAID10 LV.
Target tells us its version, and we may allow different set of options
to be supported with different version of driver.
Idea is to provide individual feature flags and later be
able to query for them.
Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.
When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]
Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
This patch adds support for RAID10. It is not the default at this
stage. The user needs to specify '--type raid10' if they would like
RAID10 instead of stacked mirror over stripe.
Remove the limit for major and minor number arguments used while specifying
persistent numbers via -My --major <major> --minor <minor> option which
was set to 255 before. Follow the kernel limit instead which is 12 bits
for major and 20 bits for minor number (kernel >= 2.6 and LVM formats
that does not have FMT_RESTRICTED_LVIDS - so still keep the old limit
of 255 for lvm1 format).
One can use "lvcreate --aay" to have the newly created volume
activated or not activated based on the activation/auto_activation_volume_list
this way.
Note: -Z/--zero is not compatible with -aay, zeroing is not used in this case!
When using lvcreate -aay, a default warning message is also issued that zeroing
is not done.
We're refererring to 'activation' all over the code and we're talking
about 'LVs being activated' all the time so let's use 'activation/activate'
everywhere for clarity and consistency (still providing the old
'available' keyword as a synonym for backward compatibility with
existing environments).
Fix regression in man page. The chunk size is in kilobyte units on command line
input though in the source code we work with sector size unit
so make it clear in the man page.
Update chunksize for thin pool in man page - it's max value is 1024M == 1G.
Fix warning range message to show proper max value.
If the lvcreate may decide some automagical values for a user,
try to keep the pool metadata size into 128MB range for optimal
perfomance (as suggested by Joe).
So if the pool metadata size and chunk_size were not specified,
try to select such values they would fit into 128MB size.
Move the code for poolmetadatasize operation into one place.
Report override for minimum and maximum size.
Drop _read_thin_params function its error reporting is handled elsewhere.
If no size was give the later added minimal size check efectively
disable this code. Also the argument for size now must be kept
in sector_size, so adding division by SECTOR_SIZE (moved into
a const expression)
Read lvm.conf setting for monitoring for each command. So we should not
activate monitoring if the default compilation is set to monitor during
lvconvert commnads.
Patch also removes check for clustered VG and allows to disable monitoring
for clustered VG with the assumption, the problem with monitoring and dmeventd
flag passing for INGNORE is already fixed.
We want to keep this logic -
when LV is extend - extend the LV by at least given amount,
when LV is reduced - reduce the LV by at most given amount.
So for this the rounding needs to be used.
Current logic which seems to satisfy give rule is to round up all
extent values for LV resize upward except for values with '-' sign
that are round downward.
This patch also fixes the problem when lvextend --use-polices tried
to extend LV the by i.e. 20% - but the resulting 20% were smaller
the extent size thus before this patch no extension happened.
Since we finaly recognize thin creation only after
_determine_snapshot_type() - move _read_activation_params()
after it - so we can support lvcreate -an thin snapshot.
If you specify the segment type (e.g. --type mirror) and the mirrors argument
as zero, it would result in a mirrored LV with only one image. While the device
may be valid in theory, it should not be allowed in practice. It also makes it
difficult on the conversion tools, since they react badly to single-image
mirrors.
