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lib: new vdo segment configurable options
Configurable for vdo segment with their default values. Also specify their ranges with minimal and maximal values.
This commit is contained in:
Zdenek Kabelac
parent
4a90b0c4c9
commit
0d9a4c6989
@ -488,6 +488,149 @@ allocation {
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# Default physical extent size in KiB to use for new VGs.
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# This configuration option has an automatic default value.
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# physical_extent_size = 4096
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# Configuration option allocation/vdo_use_compression.
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# Enables or disables compression when creating a VDO volume.
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# Compression may be disabled if necessary to maximize performance
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# or to speed processing of data that is unlikely to compress.
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# This configuration option has an automatic default value.
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# vdo_use_compression = 1
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# Configuration option allocation/vdo_use_deduplication.
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# Enables or disables deduplication when creating a VDO volume.
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# Deduplication may be disabled in instances where data is not expected
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# to have good deduplication rates but compression is still desired.
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# This configuration option has an automatic default value.
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# vdo_use_deduplication = 1
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# Configuration option allocation/vdo_emulate_512_sectors.
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# Specifies that the VDO volume is to emulate a 512 byte block device.
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# This configuration option has an automatic default value.
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# vdo_emulate_512_sectors = 0
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# Configuration option allocation/vdo_block_map_cache_size_mb.
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# Specifies the amount of memory in MiB allocated for caching block map
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# pages for VDO volume. The value must be a multiple of 4096 and must be
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# at least 128MiB and less than 16TiB. The cache must be at least 16MiB
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# per logical thread. Note that there is a memory overhead of 15%.
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# This configuration option has an automatic default value.
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# vdo_block_map_cache_size_mb = 128
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# Configuration option allocation/vdo_block_map_period.
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# Tunes the quantity of block map updates that can accumulate
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# before cache pages are flushed to disk. The value must be
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# at least 1 and less then 16380.
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# A lower value means shorter recovery time but lower performance.
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# This configuration option has an automatic default value.
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# vdo_block_map_period = 16380
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# Configuration option allocation/vdo_check_point_frequency.
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# The default check point frequency for VDO volume.
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# This configuration option has an automatic default value.
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# vdo_check_point_frequency = 0
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# Configuration option allocation/vdo_use_sparse_index.
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# Enables sparse indexing for VDO volume.
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# This configuration option has an automatic default value.
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# vdo_use_sparse_index = 0
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# Configuration option allocation/vdo_index_memory_size_mb.
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# Specifies the amount of index memory in MiB for VDO volume.
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# The value must be at least 256MiB and at most 1TiB.
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# This configuration option has an automatic default value.
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# vdo_index_memory_size_mb = 256
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# Configuration option allocation/vdo_use_read_cache.
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# Enables or disables the read cache within the VDO volume.
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# The cache should be enabled if write workloads are expected
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# to have high levels of deduplication, or for read intensive
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# workloads of highly compressible data.
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# This configuration option has an automatic default value.
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# vdo_use_read_cache = 0
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# Configuration option allocation/vdo_read_cache_size_mb.
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# Specifies the extra VDO volume read cache size in MiB.
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# This space is in addition to a system-defined minimum.
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# The value must be less then 16TiB and 1.12 MiB of memory
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# will be used per MiB of read cache specified, per bio thread.
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# This configuration option has an automatic default value.
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# vdo_read_cache_size_mb = 0
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# Configuration option allocation/vdo_slab_size_mb.
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# Specifies the size in MiB of the increment by which a VDO is grown.
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# Using a smaller size constrains the total maximum physical size
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# that can be accommodated. Must be a power of two between 128MiB and 32GiB.
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# This configuration option has an automatic default value.
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# vdo_slab_size_mb = 2048
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# Configuration option allocation/vdo_ack_threads.
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# Specifies the number of threads to use for acknowledging
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# completion of requested VDO I/O operations.
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# The value must be at in range [0..100].
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# This configuration option has an automatic default value.
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# vdo_ack_threads = 1
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# Configuration option allocation/vdo_bio_threads.
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# Specifies the number of threads to use for submitting I/O
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# operations to the storage device of VDO volume.
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# The value must be in range [1..100]
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# Each additional thread after the first will use an additional 18MiB of RAM,
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# plus 1.12 MiB of RAM per megabyte of configured read cache size.
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# This configuration option has an automatic default value.
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# vdo_bio_threads = 1
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# Configuration option allocation/vdo_bio_rotation.
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# Specifies the number of I/O operations to enqueue for each bio-submission
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# thread before directing work to the next. The value must be in range [1..1024].
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# This configuration option has an automatic default value.
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# vdo_bio_rotation = 64
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# Configuration option allocation/vdo_cpu_threads.
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# Specifies the number of threads to use for CPU-intensive work such as
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# hashing or compression for VDO volume. The value must be in range [1..100]
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# This configuration option has an automatic default value.
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# vdo_cpu_threads = 2
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# Configuration option allocation/vdo_hash_zone_threads.
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# Specifies the number of threads across which to subdivide parts of the VDO
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# processing based on the hash value computed from the block data.
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# The value must be at in range [0..100].
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# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
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# either all zero or all non-zero.
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# This configuration option has an automatic default value.
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# vdo_hash_zone_threads = 1
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# Configuration option allocation/vdo_logical_threads.
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# Specifies the number of threads across which to subdivide parts of the VDO
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# processing based on the hash value computed from the block data.
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# A logical thread count of 9 or more will require explicitly specifying
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# a sufficiently large block map cache size, as well.
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# The value must be in range [0..100].
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# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
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# either all zero or all non-zero.
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# This configuration option has an automatic default value.
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# vdo_logical_threads = 1
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# Configuration option allocation/vdo_physical_threads.
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# Specifies the number of threads across which to subdivide parts of the VDO
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# processing based on physical block addresses.
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# Each additional thread after the first will use an additional 10MiB of RAM.
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# The value must be in range [0..16].
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# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
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# either all zero or all non-zero.
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# This configuration option has an automatic default value.
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# vdo_physical_threads = 1
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# Configuration option allocation/vdo_write_policy.
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# Specifies the write policy:
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# auto - VDO will check the storage device and determine whether it supports flushes.
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# If it does, VDO will run in async mode, otherwise it will run in sync mode.
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# sync - Writes are acknowledged only after data is stably written.
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# This policy is not supported if the underlying storage is not also synchronous.
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# async - Writes are acknowledged after data has been cached for writing to stable storage.
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# Data which has not been flushed is not guaranteed to persist in this mode.
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# This configuration option has an automatic default value.
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# vdo_write_policy = "auto"
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}
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# Configuration section log.
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@ -1006,6 +1149,17 @@ global {
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# This configuration option has an automatic default value.
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# cache_repair_options = [ "" ]
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# Configuration option global/vdo_format_executable.
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# The full path to the vdoformat command.
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# LVM uses this command to initial data volume for VDO type logical volume
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# This configuration option has an automatic default value.
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# vdo_format_executable = "@VDO_FORMAT_CMD@"
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# Configuration option global/vdo_format_options.
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# List of options passed added to standard vdoformat command.
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# This configuration option has an automatic default value.
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# vdo_format_options = [ "" ]
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# Configuration option global/fsadm_executable.
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# The full path to the fsadm command.
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# LVM uses this command to help with lvresize -r operations.
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60
device_mapper/vdo/vdo_limits.h
Normal file
60
device_mapper/vdo/vdo_limits.h
Normal file
@ -0,0 +1,60 @@
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/*
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* Copyright (C) 2018 Red Hat, Inc. All rights reserved.
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*
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* This file is part of the device-mapper userspace tools.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DEVICE_MAPPER_VDO_LIMITS_H
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#define DEVICE_MAPPER_VDO_LIMITS_H
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#define DM_VDO_BLOCK_SIZE UINT64_C(8) // 4KiB in sectors
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#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB (128) // 128MiB
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#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MAXIMUM_MB (16 * 1024 * 1024 - 1) // 16TiB - 1
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#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_PER_LOGICAL_THREAD (4096 * DM_VDO_BLOCK_SIZE_KB)
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#define DM_VDO_BLOCK_MAP_PERIOD_MINIMUM 1
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#define DM_VDO_BLOCK_MAP_PERIOD_MAXIMUM (16380)
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#define DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB (256) // 0.25 GiB
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#define DM_VDO_INDEX_MEMORY_SIZE_MAXIMUM_MB (1024 * 1024 * 1024) // 1TiB
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//#define DM_VDO_READ_CACHE_SIZE_MINIMUM_MB (0)
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#define DM_VDO_READ_CACHE_SIZE_MAXIMUM_MB (16 * 1024 * 1024 - 1) // 16TiB - 1
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#define DM_VDO_SLAB_SIZE_MINIMUM_MB (128) // 128MiB
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#define DM_VDO_SLAB_SIZE_MAXIMUM_MB (32 * 1024) // 32GiB
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//#define DM_VDO_LOGICAL_SIZE_MINIMUM_MB (0)
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#define DM_VDO_LOGICAL_SIZE_MAXIMUM_MB (UINT64_C(4) * 1024 * 1024 * 1024) // 4PiB
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//#define DM_VDO_ACK_THREADS_MINIMUM (0)
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#define DM_VDO_ACK_THREADS_MAXIMUM (100)
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#define DM_VDO_BIO_THREADS_MINIMUM (1)
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#define DM_VDO_BIO_THREADS_MAXIMUM (100)
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#define DM_VDO_BIO_ROTATION_MINIMUM (1)
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#define DM_VDO_BIO_ROTATION_MAXIMUM (1024)
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#define DM_VDO_CPU_THREADS_MINIMUM (1)
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#define DM_VDO_CPU_THREADS_MAXIMUM (100)
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//#define DM_VDO_HASH_ZONE_THREADS_MINIMUM (0)
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#define DM_VDO_HASH_ZONE_THREADS_MAXIMUM (100)
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//#define DM_VDO_LOGICAL_THREADS_MINIMUM (0)
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#define DM_VDO_LOGICAL_THREADS_MAXIMUM (100)
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//#define DM_VDO_PHYSICAL_THREADS_MINIMUM (0)
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#define DM_VDO_PHYSICAL_THREADS_MAXIMUM (16)
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#endif // DEVICE_MAPPER_VDO_LIMITS_H
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2013 Red Hat, Inc. All rights reserved.
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* Copyright (C) 2013-2018 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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@ -607,6 +607,112 @@ cfg_runtime(allocation_thin_pool_chunk_size_CFG, "thin_pool_chunk_size", allocat
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cfg(allocation_physical_extent_size_CFG, "physical_extent_size", allocation_CFG_SECTION, CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_EXTENT_SIZE, vsn(2, 2, 112), NULL, 0, NULL,
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"Default physical extent size in KiB to use for new VGs.\n")
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#define VDO_1ST_VSN vsn(3, 0, 0)
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cfg(allocation_vdo_use_compression_CFG, "vdo_use_compression", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_USE_COMPRESSION, VDO_1ST_VSN, NULL, 0, NULL,
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"Enables or disables compression when creating a VDO volume.\n"
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"Compression may be disabled if necessary to maximize performance\n"
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"or to speed processing of data that is unlikely to compress.\n")
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cfg(allocation_vdo_use_deduplication_CFG, "vdo_use_deduplication", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_USE_DEDUPLICATION, VDO_1ST_VSN, NULL, 0, NULL,
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"Enables or disables deduplication when creating a VDO volume.\n"
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"Deduplication may be disabled in instances where data is not expected\n"
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"to have good deduplication rates but compression is still desired.")
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cfg(allocation_vdo_emulate_512_sectors_CFG, "vdo_emulate_512_sectors", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_EMULATE_512_SECTORS, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies that the VDO volume is to emulate a 512 byte block device.\n")
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cfg(allocation_vdo_block_map_cache_size_mb_CFG, "vdo_block_map_cache_size_mb", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_BLOCK_MAP_CACHE_SIZE_MB, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the amount of memory in MiB allocated for caching block map\n"
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"pages for VDO volume. The value must be a multiple of 4096 and must be\n"
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"at least 128MiB and less than 16TiB. The cache must be at least 16MiB\n"
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"per logical thread. Note that there is a memory overhead of 15%.\n")
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cfg(allocation_vdo_block_map_period_CFG, "vdo_block_map_period", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_BLOCK_MAP_PERIOD, VDO_1ST_VSN, NULL, 0, NULL,
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"Tunes the quantity of block map updates that can accumulate\n"
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"before cache pages are flushed to disk. The value must be\n"
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"at least 1 and less then 16380.\n"
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"A lower value means shorter recovery time but lower performance.\n")
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cfg(allocation_vdo_check_point_frequency_CFG, "vdo_check_point_frequency", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_CHECK_POINT_FREQUENCY, VDO_1ST_VSN, NULL, 0, NULL,
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"The default check point frequency for VDO volume.\n")
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cfg(allocation_vdo_use_sparse_index_CFG, "vdo_use_sparse_index", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_USE_SPARSE_INDEX, VDO_1ST_VSN, NULL, 0, NULL,
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"Enables sparse indexing for VDO volume.\n")
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cfg(allocation_vdo_index_memory_size_mb_CFG, "vdo_index_memory_size_mb", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_INDEX_MEMORY_SIZE_MB, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the amount of index memory in MiB for VDO volume.\n"
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"The value must be at least 256MiB and at most 1TiB.\n")
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cfg(allocation_vdo_use_read_cache_CFG, "vdo_use_read_cache", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_USE_READ_CACHE, VDO_1ST_VSN, NULL, 0, NULL,
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"Enables or disables the read cache within the VDO volume.\n"
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"The cache should be enabled if write workloads are expected\n"
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"to have high levels of deduplication, or for read intensive\n"
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"workloads of highly compressible data.\n")
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cfg(allocation_vdo_read_cache_size_mb_CFG, "vdo_read_cache_size_mb", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_READ_CACHE_SIZE_MB, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the extra VDO volume read cache size in MiB.\n"
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"This space is in addition to a system-defined minimum.\n"
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"The value must be less then 16TiB and 1.12 MiB of memory\n"
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"will be used per MiB of read cache specified, per bio thread.\n")
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cfg(allocation_vdo_slab_size_mb_CFG, "vdo_slab_size_mb", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_SLAB_SIZE_MB, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the size in MiB of the increment by which a VDO is grown.\n"
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"Using a smaller size constrains the total maximum physical size\n"
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"that can be accommodated. Must be a power of two between 128MiB and 32GiB.\n")
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cfg(allocation_vdo_ack_threads_CFG, "vdo_ack_threads", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_ACK_THREADS, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the number of threads to use for acknowledging\n"
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"completion of requested VDO I/O operations.\n"
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"The value must be at in range [0..100].\n")
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cfg(allocation_vdo_bio_threads_CFG, "vdo_bio_threads", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_BIO_THREADS, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the number of threads to use for submitting I/O\n"
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"operations to the storage device of VDO volume.\n"
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"The value must be in range [1..100]\n"
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"Each additional thread after the first will use an additional 18MiB of RAM,\n"
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"plus 1.12 MiB of RAM per megabyte of configured read cache size.\n")
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cfg(allocation_vdo_bio_rotation_CFG, "vdo_bio_rotation", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_BIO_ROTATION, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the number of I/O operations to enqueue for each bio-submission\n"
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"thread before directing work to the next. The value must be in range [1..1024].\n")
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cfg(allocation_vdo_cpu_threads_CFG, "vdo_cpu_threads", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_CPU_THREADS, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the number of threads to use for CPU-intensive work such as\n"
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"hashing or compression for VDO volume. The value must be in range [1..100]\n")
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cfg(allocation_vdo_hash_zone_threads_CFG, "vdo_hash_zone_threads", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_HASH_ZONE_THREADS, VDO_1ST_VSN, NULL, 0, NULL,
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"Specifies the number of threads across which to subdivide parts of the VDO\n"
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"processing based on the hash value computed from the block data.\n"
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"The value must be at in range [0..100].\n"
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"vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be\n"
|
||||
"either all zero or all non-zero.")
|
||||
|
||||
cfg(allocation_vdo_logical_threads_CFG, "vdo_logical_threads", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_LOGICAL_THREADS, VDO_1ST_VSN, NULL, 0, NULL,
|
||||
"Specifies the number of threads across which to subdivide parts of the VDO\n"
|
||||
"processing based on the hash value computed from the block data.\n"
|
||||
"A logical thread count of 9 or more will require explicitly specifying\n"
|
||||
"a sufficiently large block map cache size, as well.\n"
|
||||
"The value must be in range [0..100].\n"
|
||||
"vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be\n"
|
||||
"either all zero or all non-zero.\n")
|
||||
|
||||
cfg(allocation_vdo_physical_threads_CFG, "vdo_physical_threads", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_INT, DEFAULT_VDO_PHYSICAL_THREADS, VDO_1ST_VSN, NULL, 0, NULL,
|
||||
"Specifies the number of threads across which to subdivide parts of the VDO\n"
|
||||
"processing based on physical block addresses.\n"
|
||||
"Each additional thread after the first will use an additional 10MiB of RAM.\n"
|
||||
"The value must be in range [0..16].\n"
|
||||
"vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be\n"
|
||||
"either all zero or all non-zero.\n")
|
||||
|
||||
cfg(allocation_vdo_write_policy_CFG, "vdo_write_policy", allocation_CFG_SECTION, CFG_PROFILABLE | CFG_PROFILABLE_METADATA | CFG_DEFAULT_COMMENTED, CFG_TYPE_STRING, DEFAULT_VDO_WRITE_POLICY, VDO_1ST_VSN, NULL, 0, NULL,
|
||||
"Specifies the write policy:\n"
|
||||
"auto - VDO will check the storage device and determine whether it supports flushes.\n"
|
||||
" If it does, VDO will run in async mode, otherwise it will run in sync mode.\n"
|
||||
"sync - Writes are acknowledged only after data is stably written.\n"
|
||||
" This policy is not supported if the underlying storage is not also synchronous.\n"
|
||||
"async - Writes are acknowledged after data has been cached for writing to stable storage.\n"
|
||||
" Data which has not been flushed is not guaranteed to persist in this mode.\n")
|
||||
|
||||
cfg(log_report_command_log_CFG, "report_command_log", log_CFG_SECTION, CFG_PROFILABLE | CFG_DEFAULT_COMMENTED | CFG_DISALLOW_INTERACTIVE, CFG_TYPE_BOOL, DEFAULT_COMMAND_LOG_REPORT, vsn(2, 2, 158), NULL, 0, NULL,
|
||||
"Enable or disable LVM log reporting.\n"
|
||||
"If enabled, LVM will collect a log of operations, messages,\n"
|
||||
@ -1019,6 +1125,13 @@ cfg_array(global_cache_check_options_CFG, "cache_check_options", global_CFG_SECT
|
||||
cfg_array(global_cache_repair_options_CFG, "cache_repair_options", global_CFG_SECTION, CFG_ALLOW_EMPTY | CFG_DEFAULT_COMMENTED, CFG_TYPE_STRING, DEFAULT_CACHE_REPAIR_OPTIONS_CONFIG, vsn(2, 2, 108), NULL, 0, NULL,
|
||||
"List of options passed to the cache_repair command.\n")
|
||||
|
||||
cfg(global_vdo_format_executable_CFG, "vdo_format_executable", global_CFG_SECTION, CFG_ALLOW_EMPTY | CFG_DEFAULT_COMMENTED, CFG_TYPE_STRING, VDO_FORMAT_CMD, VDO_1ST_VSN, "@VDO_FORMAT_CMD@", 0, NULL,
|
||||
"The full path to the vdoformat command.\n"
|
||||
"LVM uses this command to initial data volume for VDO type logical volume\n")
|
||||
|
||||
cfg_array(global_vdo_format_options_CFG, "vdo_format_options", global_CFG_SECTION, CFG_ALLOW_EMPTY | CFG_DEFAULT_COMMENTED, CFG_TYPE_STRING, DEFAULT_VDO_FORMAT_OPTIONS_CONFIG, VDO_1ST_VSN, NULL, 0, NULL,
|
||||
"List of options passed added to standard vdoformat command.\n")
|
||||
|
||||
cfg(global_fsadm_executable_CFG, "fsadm_executable", global_CFG_SECTION, CFG_DEFAULT_COMMENTED, CFG_TYPE_STRING, DEFAULT_FSADM_PATH, vsn(2, 2, 170), "@FSADM_PATH@", 0, NULL,
|
||||
"The full path to the fsadm command.\n"
|
||||
"LVM uses this command to help with lvresize -r operations.\n")
|
||||
|
||||
@ -16,6 +16,8 @@
|
||||
#ifndef _LVM_DEFAULTS_H
|
||||
#define _LVM_DEFAULTS_H
|
||||
|
||||
#include "device_mapper/vdo/vdo_limits.h"
|
||||
|
||||
#define DEFAULT_PE_ALIGN 2048
|
||||
#define DEFAULT_PE_ALIGN_OLD 128
|
||||
|
||||
@ -134,6 +136,37 @@
|
||||
#define DEFAULT_CACHE_METADATA_FORMAT CACHE_METADATA_FORMAT_UNSELECTED /* Autodetect */
|
||||
#define DEFAULT_CACHE_MODE "writethrough"
|
||||
|
||||
|
||||
/* VDO defaults */
|
||||
#define DEFAULT_VDO_USE_COMPRESSION (true)
|
||||
#define DEFAULT_VDO_USE_DEDUPLICATION (true)
|
||||
#define DEFAULT_VDO_EMULATE_512_SECTORS (false)
|
||||
#define DEFAULT_VDO_BLOCK_MAP_CACHE_SIZE_MB (DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB)
|
||||
#define DEFAULT_VDO_BLOCK_MAP_PERIOD (DM_VDO_BLOCK_MAP_PERIOD_MAXIMUM)
|
||||
#define DEFAULT_VDO_USE_SPARSE_INDEX (false)
|
||||
#define DEFAULT_VDO_CHECK_POINT_FREQUENCY (0)
|
||||
#define DEFAULT_VDO_INDEX_MEMORY_SIZE_MB (DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB)
|
||||
#define DEFAULT_VDO_USE_READ_CACHE (false)
|
||||
#define DEFAULT_VDO_READ_CACHE_SIZE_MB (0)
|
||||
#define DEFAULT_VDO_SLAB_SIZE_MB (2 * 1024) // 2GiB ... 19 slabbits
|
||||
#define DEFAULT_VDO_ACK_THREADS (1)
|
||||
#define DEFAULT_VDO_BIO_THREADS (1)
|
||||
#define DEFAULT_VDO_BIO_ROTATION (64)
|
||||
#define DEFAULT_VDO_CPU_THREADS (2)
|
||||
#define DEFAULT_VDO_HASH_ZONE_THREADS (1)
|
||||
#define DEFAULT_VDO_LOGICAL_THREADS (1)
|
||||
#define DEFAULT_VDO_PHYSICAL_THREADS (1)
|
||||
#define DEFAULT_VDO_WRITE_POLICY "auto"
|
||||
|
||||
#define DEFAULT_VDO_FORMAT_OPTIONS_CONFIG "#S" ""
|
||||
/*
|
||||
* VDO pool will reverve some sectors in the front and the back of pool device to avoid
|
||||
* seeing same device twice in the system.
|
||||
*/
|
||||
#define DEFAULT_VDO_POOL_HEADER_SIZE (1024) // 512KiB
|
||||
|
||||
|
||||
|
||||
#define DEFAULT_FSADM_PATH FSADM_PATH
|
||||
|
||||
#define DEFAULT_UMASK 0077
|
||||
|
||||
Loading…
Reference in New Issue
Block a user