diff options
| author | George Wilson <[email protected]> | 2011-07-26 12:08:52 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-08-01 12:09:11 -0700 |
| commit | 6d974228ef05366c546bb04198dafcb38785c16d (patch) | |
| tree | 0b5133bcfd94f7165d941f1ed0e461e30adb0e64 /include/sys/metaslab_impl.h | |
| parent | bb939d10859e4f56bc793c4d5077e680a8c6c3aa (diff) | |
Illumos #1051: zfs should handle imbalanced luns
Today zfs tries to allocate blocks evenly across all devices.
This means when devices are imbalanced zfs will use lots of
CPU searching for space on devices which tend to be pretty
full. It should instead fail quickly on the full LUNs and
move onto devices which have more availability.
Reviewed by: Eric Schrock <[email protected]>
Reviewed by: Matt Ahrens <[email protected]>
Reviewed by: Adam Leventhal <[email protected]>
Reviewed by: Albert Lee <[email protected]>
Reviewed by: Gordon Ross <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
References to Illumos issue and patch:
- https://www.illumos.org/issues/510
- https://github.com/illumos/illumos-gate/commit/5ead3ed965
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #340
Diffstat (limited to 'include/sys/metaslab_impl.h')
| -rw-r--r-- | include/sys/metaslab_impl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sys/metaslab_impl.h b/include/sys/metaslab_impl.h index 07988dd51..6c670a162 100644 --- a/include/sys/metaslab_impl.h +++ b/include/sys/metaslab_impl.h @@ -21,6 +21,7 @@ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. + * Copyright (c) 2011 by Delphix. All rights reserved. */ #ifndef _SYS_METASLAB_IMPL_H @@ -52,6 +53,7 @@ struct metaslab_group { avl_tree_t mg_metaslab_tree; uint64_t mg_aliquot; uint64_t mg_bonus_area; + uint64_t mg_alloc_failures; int64_t mg_bias; int64_t mg_activation_count; metaslab_class_t *mg_class; |