diff options
| author | Don Brady <[email protected]> | 2018-09-05 19:33:36 -0600 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-09-05 18:33:36 -0700 |
| commit | cc99f275a28c43fe450a66a7544f73c4935f7361 (patch) | |
| tree | f867e1d2cbb550a047c0f87986831252c41a2fd9 /module/zfs/vdev_label.c | |
| parent | cfa37548ebc880580782b245f2d233ed540e7a01 (diff) | |
Pool allocation classes
Allocation Classes add the ability to have allocation classes in a
pool that are dedicated to serving specific block categories, such
as DDT data, metadata, and small file blocks. A pool can opt-in to
this feature by adding a 'special' or 'dedup' top-level VDEV.
Reviewed by: Pavel Zakharov <[email protected]>
Reviewed-by: Richard Laager <[email protected]>
Reviewed-by: Alek Pinchuk <[email protected]>
Reviewed-by: Håkan Johansson <[email protected]>
Reviewed-by: Andreas Dilger <[email protected]>
Reviewed-by: DHE <[email protected]>
Reviewed-by: Richard Elling <[email protected]>
Reviewed-by: Gregor Kopka <[email protected]>
Reviewed-by: Kash Pande <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Matthew Ahrens <[email protected]>
Signed-off-by: Don Brady <[email protected]>
Closes #5182
Diffstat (limited to 'module/zfs/vdev_label.c')
| -rw-r--r-- | module/zfs/vdev_label.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/module/zfs/vdev_label.c b/module/zfs/vdev_label.c index 29d7d651b..439ab7438 100644 --- a/module/zfs/vdev_label.c +++ b/module/zfs/vdev_label.c @@ -22,6 +22,8 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012, 2018 by Delphix. All rights reserved. + * Copyright (c) 2012, 2016 by Delphix. All rights reserved. + * Copyright (c) 2017, Intel Corporation. */ /* @@ -463,6 +465,28 @@ vdev_config_generate(spa_t *spa, vdev_t *vd, boolean_t getstats, fnvlist_add_uint64(nv, ZPOOL_CONFIG_REMOVING, vd->vdev_removing); } + + /* zpool command expects alloc class data */ + if (getstats && vd->vdev_alloc_bias != VDEV_BIAS_NONE) { + const char *bias = NULL; + + switch (vd->vdev_alloc_bias) { + case VDEV_BIAS_LOG: + bias = VDEV_ALLOC_BIAS_LOG; + break; + case VDEV_BIAS_SPECIAL: + bias = VDEV_ALLOC_BIAS_SPECIAL; + break; + case VDEV_BIAS_DEDUP: + bias = VDEV_ALLOC_BIAS_DEDUP; + break; + default: + ASSERT3U(vd->vdev_alloc_bias, ==, + VDEV_BIAS_NONE); + } + fnvlist_add_string(nv, ZPOOL_CONFIG_ALLOCATION_BIAS, + bias); + } } if (vd->vdev_dtl_sm != NULL) { |