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This patch adds a new top-level vdev type called dRAID, which stands
for Distributed parity RAID. This pool configuration allows all dRAID
vdevs to participate when rebuilding to a distributed hot spare device.
This can substantially reduce the total time required to restore full
parity to pool with a failed device.
A dRAID pool can be created using the new top-level `draid` type.
Like `raidz`, the desired redundancy is specified after the type:
`draid[1,2,3]`. No additional information is required to create the
pool and reasonable default values will be chosen based on the number
of child vdevs in the dRAID vdev.
zpool create <pool> draid[1,2,3] <vdevs...>
Unlike raidz, additional optional dRAID configuration values can be
provided as part of the draid type as colon separated values. This
allows administrators to fully specify a layout for either performance
or capacity reasons. The supported options include:
zpool create <pool> \
draid[<parity>][:<data>d][:<children>c][:<spares>s] \
<vdevs...>
- draid[parity] - Parity level (default 1)
- draid[:<data>d] - Data devices per group (default 8)
- draid[:<children>c] - Expected number of child vdevs
- draid[:<spares>s] - Distributed hot spares (default 0)
Abbreviated example `zpool status` output for a 68 disk dRAID pool
with two distributed spares using special allocation classes.
```
pool: tank
state: ONLINE
config:
NAME STATE READ WRITE CKSUM
slag7 ONLINE 0 0 0
draid2:8d:68c:2s-0 ONLINE 0 0 0
L0 ONLINE 0 0 0
L1 ONLINE 0 0 0
...
U25 ONLINE 0 0 0
U26 ONLINE 0 0 0
spare-53 ONLINE 0 0 0
U27 ONLINE 0 0 0
draid2-0-0 ONLINE 0 0 0
U28 ONLINE 0 0 0
U29 ONLINE 0 0 0
...
U42 ONLINE 0 0 0
U43 ONLINE 0 0 0
special
mirror-1 ONLINE 0 0 0
L5 ONLINE 0 0 0
U5 ONLINE 0 0 0
mirror-2 ONLINE 0 0 0
L6 ONLINE 0 0 0
U6 ONLINE 0 0 0
spares
draid2-0-0 INUSE currently in use
draid2-0-1 AVAIL
```
When adding test coverage for the new dRAID vdev type the following
options were added to the ztest command. These options are leverages
by zloop.sh to test a wide range of dRAID configurations.
-K draid|raidz|random - kind of RAID to test
-D <value> - dRAID data drives per group
-S <value> - dRAID distributed hot spares
-R <value> - RAID parity (raidz or dRAID)
The zpool_create, zpool_import, redundancy, replacement and fault
test groups have all been updated provide test coverage for the
dRAID feature.
Co-authored-by: Isaac Huang <he.huang@intel.com>
Co-authored-by: Mark Maybee <mmaybee@cray.com>
Co-authored-by: Don Brady <don.brady@delphix.com>
Co-authored-by: Matthew Ahrens <mahrens@delphix.com>
Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mark Maybee <mmaybee@cray.com>
Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10102
95 lines
5.5 KiB
INI
95 lines
5.5 KiB
INI
# This file exports variables for each tunable used in the test suite.
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#
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# Different platforms use different names for most tunables. To avoid littering
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# the tests with conditional logic for deciding how to set each tunable, the
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# logic is instead consolidated to this one file.
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#
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# Any use of tunables in tests must use a name defined here. New entries
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# should be added to the table as needed. Please keep the table sorted
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# alphabetically for ease of maintenance.
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#
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# Platform-specific tunables should still use a NAME from this table for
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# consistency. Enter UNSUPPORTED in the column for platforms on which the
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# tunable is not implemented.
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UNAME=$(uname)
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# NAME FreeBSD tunable Linux tunable
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cat <<%%%% |
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ADMIN_SNAPSHOT UNSUPPORTED zfs_admin_snapshot
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ALLOW_REDACTED_DATASET_MOUNT allow_redacted_dataset_mount zfs_allow_redacted_dataset_mount
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ARC_MAX arc.max zfs_arc_max
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ARC_MIN arc.min zfs_arc_min
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ASYNC_BLOCK_MAX_BLOCKS async_block_max_blocks zfs_async_block_max_blocks
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CHECKSUM_EVENTS_PER_SECOND checksum_events_per_second zfs_checksum_events_per_second
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COMMIT_TIMEOUT_PCT commit_timeout_pct zfs_commit_timeout_pct
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COMPRESSED_ARC_ENABLED compressed_arc_enabled zfs_compressed_arc_enabled
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CONDENSE_INDIRECT_COMMIT_ENTRY_DELAY_MS condense.indirect_commit_entry_delay_ms zfs_condense_indirect_commit_entry_delay_ms
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CONDENSE_MIN_MAPPING_BYTES condense.min_mapping_bytes zfs_condense_min_mapping_bytes
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DBUF_CACHE_MAX_BYTES dbuf_cache.max_bytes dbuf_cache_max_bytes
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DEADMAN_CHECKTIME_MS deadman_checktime_ms zfs_deadman_checktime_ms
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DEADMAN_FAILMODE deadman_failmode zfs_deadman_failmode
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DEADMAN_SYNCTIME_MS deadman_synctime_ms zfs_deadman_synctime_ms
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DEADMAN_ZIOTIME_MS deadman_ziotime_ms zfs_deadman_ziotime_ms
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DISABLE_IVSET_GUID_CHECK disable_ivset_guid_check zfs_disable_ivset_guid_check
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INITIALIZE_CHUNK_SIZE initialize_chunk_size zfs_initialize_chunk_size
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INITIALIZE_VALUE initialize_value zfs_initialize_value
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KEEP_LOG_SPACEMAPS_AT_EXPORT keep_log_spacemaps_at_export zfs_keep_log_spacemaps_at_export
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LUA_MAX_MEMLIMIT lua.max_memlimit zfs_lua_max_memlimit
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L2ARC_MFUONLY l2arc.mfuonly l2arc_mfuonly
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L2ARC_NOPREFETCH l2arc.noprefetch l2arc_noprefetch
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L2ARC_REBUILD_BLOCKS_MIN_L2SIZE l2arc.rebuild_blocks_min_l2size l2arc_rebuild_blocks_min_l2size
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L2ARC_REBUILD_ENABLED l2arc.rebuild_enabled l2arc_rebuild_enabled
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L2ARC_TRIM_AHEAD l2arc.trim_ahead l2arc_trim_ahead
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L2ARC_WRITE_BOOST l2arc.write_boost l2arc_write_boost
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L2ARC_WRITE_MAX l2arc.write_max l2arc_write_max
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LIVELIST_CONDENSE_NEW_ALLOC livelist.condense.new_alloc zfs_livelist_condense_new_alloc
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LIVELIST_CONDENSE_SYNC_CANCEL livelist.condense.sync_cancel zfs_livelist_condense_sync_cancel
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LIVELIST_CONDENSE_SYNC_PAUSE livelist.condense.sync_pause zfs_livelist_condense_sync_pause
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LIVELIST_CONDENSE_ZTHR_CANCEL livelist.condense.zthr_cancel zfs_livelist_condense_zthr_cancel
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LIVELIST_CONDENSE_ZTHR_PAUSE livelist.condense.zthr_pause zfs_livelist_condense_zthr_pause
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LIVELIST_MAX_ENTRIES livelist.max_entries zfs_livelist_max_entries
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LIVELIST_MIN_PERCENT_SHARED livelist.min_percent_shared zfs_livelist_min_percent_shared
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MAX_DATASET_NESTING max_dataset_nesting zfs_max_dataset_nesting
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MAX_MISSING_TVDS max_missing_tvds zfs_max_missing_tvds
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METASLAB_DEBUG_LOAD metaslab.debug_load metaslab_debug_load
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METASLAB_FORCE_GANGING metaslab.force_ganging metaslab_force_ganging
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MULTIHOST_FAIL_INTERVALS multihost.fail_intervals zfs_multihost_fail_intervals
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MULTIHOST_HISTORY multihost.history zfs_multihost_history
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MULTIHOST_IMPORT_INTERVALS multihost.import_intervals zfs_multihost_import_intervals
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MULTIHOST_INTERVAL multihost.interval zfs_multihost_interval
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OVERRIDE_ESTIMATE_RECORDSIZE send.override_estimate_recordsize zfs_override_estimate_recordsize
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PREFETCH_DISABLE prefetch.disable zfs_prefetch_disable
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REBUILD_SCRUB_ENABLED rebuild_scrub_enabled zfs_rebuild_scrub_enabled
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REMOVAL_SUSPEND_PROGRESS removal_suspend_progress zfs_removal_suspend_progress
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REMOVE_MAX_SEGMENT remove_max_segment zfs_remove_max_segment
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RESILVER_MIN_TIME_MS resilver_min_time_ms zfs_resilver_min_time_ms
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SCAN_LEGACY scan_legacy zfs_scan_legacy
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SCAN_SUSPEND_PROGRESS scan_suspend_progress zfs_scan_suspend_progress
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SCAN_VDEV_LIMIT scan_vdev_limit zfs_scan_vdev_limit
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SEND_HOLES_WITHOUT_BIRTH_TIME send_holes_without_birth_time send_holes_without_birth_time
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SLOW_IO_EVENTS_PER_SECOND slow_io_events_per_second zfs_slow_io_events_per_second
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SPA_ASIZE_INFLATION spa.asize_inflation spa_asize_inflation
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SPA_DISCARD_MEMORY_LIMIT spa.discard_memory_limit zfs_spa_discard_memory_limit
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SPA_LOAD_VERIFY_DATA spa.load_verify_data spa_load_verify_data
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SPA_LOAD_VERIFY_METADATA spa.load_verify_metadata spa_load_verify_metadata
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TRIM_EXTENT_BYTES_MIN trim.extent_bytes_min zfs_trim_extent_bytes_min
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TRIM_METASLAB_SKIP trim.metaslab_skip zfs_trim_metaslab_skip
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TRIM_TXG_BATCH trim.txg_batch zfs_trim_txg_batch
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TXG_HISTORY txg.history zfs_txg_history
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TXG_TIMEOUT txg.timeout zfs_txg_timeout
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UNLINK_SUSPEND_PROGRESS UNSUPPORTED zfs_unlink_suspend_progress
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VDEV_FILE_PHYSICAL_ASHIFT vdev.file.physical_ashift vdev_file_physical_ashift
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VDEV_MIN_MS_COUNT vdev.min_ms_count zfs_vdev_min_ms_count
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VDEV_VALIDATE_SKIP vdev.validate_skip vdev_validate_skip
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VOL_INHIBIT_DEV UNSUPPORTED zvol_inhibit_dev
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VOL_MODE vol.mode zvol_volmode
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VOL_RECURSIVE vol.recursive UNSUPPORTED
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ZEVENT_LEN_MAX zevent.len_max zfs_zevent_len_max
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ZEVENT_RETAIN_MAX zevent.retain_max zfs_zevent_retain_max
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ZIO_SLOW_IO_MS zio.slow_io_ms zio_slow_io_ms
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%%%%
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while read name FreeBSD Linux; do
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eval "export ${name}=\$${UNAME}"
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done
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