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b2255edcc0
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
152 lines
2.2 KiB
Makefile
152 lines
2.2 KiB
Makefile
SUBDIRS = fm fs crypto lua sysevent zstd
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COMMON_H = \
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abd.h \
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abd_impl.h \
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aggsum.h \
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arc.h \
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arc_impl.h \
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avl.h \
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avl_impl.h \
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bitops.h \
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blkptr.h \
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bplist.h \
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bpobj.h \
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bptree.h \
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btree.h \
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bqueue.h \
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dataset_kstats.h \
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dbuf.h \
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ddt.h \
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dmu.h \
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dmu_impl.h \
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dmu_objset.h \
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dmu_recv.h \
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dmu_redact.h \
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dmu_send.h \
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dmu_traverse.h \
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dmu_tx.h \
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dmu_zfetch.h \
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dnode.h \
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dsl_bookmark.h \
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dsl_dataset.h \
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dsl_deadlist.h \
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dsl_deleg.h \
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dsl_destroy.h \
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dsl_dir.h \
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dsl_crypt.h \
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dsl_pool.h \
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dsl_prop.h \
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dsl_scan.h \
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dsl_synctask.h \
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dsl_userhold.h \
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edonr.h \
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efi_partition.h \
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frame.h \
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hkdf.h \
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metaslab.h \
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metaslab_impl.h \
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mmp.h \
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mntent.h \
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mod.h \
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multilist.h \
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note.h \
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nvpair.h \
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nvpair_impl.h \
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objlist.h \
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pathname.h \
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qat.h \
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range_tree.h \
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rrwlock.h \
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sa.h \
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sa_impl.h \
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skein.h \
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spa_boot.h \
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spa_checkpoint.h \
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spa_log_spacemap.h \
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space_map.h \
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space_reftree.h \
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spa.h \
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spa_impl.h \
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spa_checksum.h \
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sysevent.h \
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txg.h \
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txg_impl.h \
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u8_textprep_data.h \
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u8_textprep.h \
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uberblock.h \
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uberblock_impl.h \
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uio_impl.h \
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unique.h \
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uuid.h \
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vdev_disk.h \
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vdev_file.h \
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vdev.h \
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vdev_draid.h \
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vdev_impl.h \
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vdev_indirect_births.h \
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vdev_indirect_mapping.h \
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vdev_initialize.h \
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vdev_raidz.h \
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vdev_raidz_impl.h \
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vdev_rebuild.h \
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vdev_removal.h \
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vdev_trim.h \
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xvattr.h \
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zap.h \
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zap_impl.h \
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zap_leaf.h \
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zcp.h \
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zcp_global.h \
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zcp_iter.h \
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zcp_prop.h \
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zcp_set.h \
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zfeature.h \
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zfs_acl.h \
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zfs_bootenv.h \
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zfs_context.h \
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zfs_debug.h \
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zfs_delay.h \
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zfs_file.h \
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zfs_fuid.h \
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zfs_project.h \
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zfs_quota.h \
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zfs_ratelimit.h \
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zfs_refcount.h \
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zfs_rlock.h \
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zfs_sa.h \
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zfs_stat.h \
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zfs_sysfs.h \
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zfs_vfsops.h \
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zfs_vnops.h \
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zfs_znode.h \
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zil.h \
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zil_impl.h \
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zio_checksum.h \
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zio_compress.h \
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zio_crypt.h \
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zio.h \
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zio_impl.h \
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zio_priority.h \
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zrlock.h \
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zthr.h
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KERNEL_H = \
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zfs_ioctl.h \
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zfs_ioctl_impl.h \
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zfs_onexit.h \
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zvol.h \
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zvol_impl.h
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if CONFIG_USER
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libzfsdir = $(includedir)/libzfs/sys
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libzfs_HEADERS = $(COMMON_H)
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endif
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if CONFIG_KERNEL
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if BUILD_LINUX
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kerneldir = @prefix@/src/zfs-$(VERSION)/include/sys
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kernel_HEADERS = $(COMMON_H) $(KERNEL_H)
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endif
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endif
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