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* LVM2 doc/example.conf.in lib/config/defaults.h ...
@ 2011-11-04 22:44 zkabelac
0 siblings, 0 replies; 2+ messages in thread
From: zkabelac @ 2011-11-04 22:44 UTC (permalink / raw)
To: lvm-devel, lvm2-cvs
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: zkabelac@sourceware.org 2011-11-04 22:44:22
Modified files:
doc : example.conf.in
lib/config : defaults.h
lib/metadata : lv_manip.c
Log message:
Thin add thin_pool_metadata_require_separate_pvs
Allow to set different policy for pool from mirrors.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/doc/example.conf.in.diff?cvsroot=lvm2&r1=1.34&r2=1.35
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/config/defaults.h.diff?cvsroot=lvm2&r1=1.86&r2=1.87
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/metadata/lv_manip.c.diff?cvsroot=lvm2&r1=1.321&r2=1.322
--- LVM2/doc/example.conf.in 2011/10/11 09:13:39 1.34
+++ LVM2/doc/example.conf.in 2011/11/04 22:44:21 1.35
@@ -213,6 +213,11 @@
# until version 2.02.85.
#
# mirror_logs_require_separate_pvs = 0
+#
+# Set to 1 to guarantee that thin pool metadata will always
+# be placed on different PVs from the pool data.
+#
+# thin_pool_metadata_require_separate_pvs = 0
#}
# This section that allows you to configure the nature of the
--- LVM2/lib/config/defaults.h 2011/11/04 22:43:10 1.86
+++ LVM2/lib/config/defaults.h 2011/11/04 22:44:21 1.87
@@ -60,6 +60,7 @@
#define DEFAULT_DMEVENTD_MONITOR 1
#define DEFAULT_BACKGROUND_POLLING 1
+#define DEFAULT_THIN_POOL_METADATA_REQUIRE_SEPARATE_PVS 0
#define DEFAULT_THIN_POOL_MAX_METADATA_SIZE (16 * 1024 * 1024) /* KB */
#define DEFAULT_THIN_POOL_MIN_METADATA_SIZE 2048 /* KB */
--- LVM2/lib/metadata/lv_manip.c 2011/11/04 22:43:10 1.321
+++ LVM2/lib/metadata/lv_manip.c 2011/11/04 22:44:22 1.322
@@ -788,6 +788,8 @@
ah->region_size = region_size;
ah->alloc = alloc;
ah->area_multiple = _calc_area_multiple(segtype, area_count, stripes);
+ ah->mirror_logs_separate = find_config_tree_bool(cmd, "allocation/mirror_logs_require_separate_pvs",
+ DEFAULT_MIRROR_LOGS_REQUIRE_SEPARATE_PVS);
if (segtype_is_raid(segtype)) {
if (metadata_area_count) {
@@ -813,6 +815,9 @@
/* thin_pool uses region_size to pass metadata size in extents */
ah->log_len = ah->region_size;
ah->region_size = 0;
+ ah->mirror_logs_separate =
+ find_config_tree_bool(cmd, "allocation/thin_pool_metadata_require_separate_pvs",
+ DEFAULT_THIN_POOL_METADATA_REQUIRE_SEPARATE_PVS);
} else {
ah->log_area_count = metadata_area_count;
ah->log_len = !metadata_area_count ? 0 :
@@ -829,8 +834,6 @@
ah->maximise_cling = find_config_tree_bool(cmd, "allocation/maximise_cling", DEFAULT_MAXIMISE_CLING);
- ah->mirror_logs_separate = find_config_tree_bool(cmd, "allocation/mirror_logs_require_separate_pvs", DEFAULT_MIRROR_LOGS_REQUIRE_SEPARATE_PVS);
-
return ah;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* LVM2 doc/example.conf.in lib/config/defaults.h ...
@ 2011-12-21 13:10 zkabelac
0 siblings, 0 replies; 2+ messages in thread
From: zkabelac @ 2011-12-21 13:10 UTC (permalink / raw)
To: lvm-devel, lvm2-cvs
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: zkabelac@sourceware.org 2011-12-21 13:10:53
Modified files:
doc : example.conf.in
lib/config : defaults.h
tools : lvresize.c
Log message:
Thin automatic policy based extension
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/doc/example.conf.in.diff?cvsroot=lvm2&r1=1.39&r2=1.40
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/config/defaults.h.diff?cvsroot=lvm2&r1=1.91&r2=1.92
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/tools/lvresize.c.diff?cvsroot=lvm2&r1=1.144&r2=1.145
--- LVM2/doc/example.conf.in 2011/12/21 13:08:13 1.39
+++ LVM2/doc/example.conf.in 2011/12/21 13:10:52 1.40
@@ -603,6 +603,25 @@
snapshot_autoextend_threshold = 100
snapshot_autoextend_percent = 20
+ # 'thin_pool_autoextend_threshold' and 'thin_pool_autoextend_percent' define
+ # how to handle automatic pool extension. The former defines when the
+ # pool should be extended: when its space usage exceeds this many
+ # percent. The latter defines how much extra space should be allocated for
+ # the pool, in percent of its current size.
+ #
+ # For example, if you set thin_pool_autoextend_threshold to 70 and
+ # thin_pool_autoextend_percent to 20, whenever a pool exceeds 70% usage,
+ # it will be extended by another 20%. For a 1G pool, using up 700M will
+ # trigger a resize to 1.2G. When the usage exceeds 840M, the pool will
+ # be extended to 1.44G, and so on.
+ #
+ # Setting thin_pool_autoextend_threshold to 100 disables automatic
+ # extensions. The minimum value is 50 (A setting below 50 will be treated
+ # as 50).
+
+ thin_pool_autoextend_threshold = 100
+ thin_pool_autoextend_percent = 20
+
# While activating devices, I/O to devices being (re)configured is
# suspended, and as a precaution against deadlocks, LVM2 needs to pin
# any memory it is using so it is not paged out. Groups of pages that
--- LVM2/lib/config/defaults.h 2011/12/21 13:08:13 1.91
+++ LVM2/lib/config/defaults.h 2011/12/21 13:10:52 1.92
@@ -170,5 +170,7 @@
#define DEFAULT_MIRROR_LOG_FAULT_POLICY "allocate"
#define DEFAULT_SNAPSHOT_AUTOEXTEND_THRESHOLD 100
#define DEFAULT_SNAPSHOT_AUTOEXTEND_PERCENT 20
+#define DEFAULT_THIN_POOL_AUTOEXTEND_THRESHOLD 100
+#define DEFAULT_THIN_POOL_AUTOEXTEND_PERCENT 20
#endif /* _LVM_DEFAULTS_H */
--- LVM2/tools/lvresize.c 2011/12/01 00:13:16 1.144
+++ LVM2/tools/lvresize.c 2011/12/21 13:10:53 1.145
@@ -285,23 +285,40 @@
percent_t percent;
int policy_threshold, policy_amount;
- policy_threshold =
- find_config_tree_int(cmd, "activation/snapshot_autoextend_threshold",
- DEFAULT_SNAPSHOT_AUTOEXTEND_THRESHOLD) * PERCENT_1;
- policy_amount =
- find_config_tree_int(cmd, "activation/snapshot_autoextend_percent",
- DEFAULT_SNAPSHOT_AUTOEXTEND_PERCENT);
+ if (lv_is_thin_pool(lv)) {
+ policy_threshold =
+ find_config_tree_int(cmd, "activation/thin_pool_autoextend_threshold",
+ DEFAULT_THIN_POOL_AUTOEXTEND_THRESHOLD) * PERCENT_1;
+ policy_amount =
+ find_config_tree_int(cmd, "activation/thin_pool_autoextend_percent",
+ DEFAULT_THIN_POOL_AUTOEXTEND_PERCENT);
+ } else {
+ policy_threshold =
+ find_config_tree_int(cmd, "activation/snapshot_autoextend_threshold",
+ DEFAULT_SNAPSHOT_AUTOEXTEND_THRESHOLD) * PERCENT_1;
+ policy_amount =
+ find_config_tree_int(cmd, "activation/snapshot_autoextend_percent",
+ DEFAULT_SNAPSHOT_AUTOEXTEND_PERCENT);
+ }
if (policy_threshold >= PERCENT_100)
return 1; /* nothing to do */
- if (!lv_snapshot_percent(lv, &percent))
- return_0;
-
- if (!(PERCENT_0 < percent && percent < PERCENT_100) || percent <= policy_threshold)
- return 1; /* nothing to do */
+ if (lv_is_thin_pool(lv)) {
+ if (!lv_thin_pool_percent(lv, &percent))
+ return_0;
+ if (!(PERCENT_0 < percent && percent <= PERCENT_100) ||
+ percent <= policy_threshold)
+ return 1; /* nothing to do */
+ } else {
+ if (!lv_snapshot_percent(lv, &percent))
+ return_0;
+ if (!(PERCENT_0 < percent && percent < PERCENT_100) || percent <= policy_threshold)
+ return 1; /* nothing to do */
+ }
lp->extents = policy_amount;
+
return 1;
}
@@ -399,8 +416,9 @@
lv = lvl->lv;
if (use_policy) {
- if (!lv_is_cow(lv)) {
- log_error("Can't use policy-based resize for non-snapshot volumes.");
+ if (!lv_is_cow(lv) &&
+ !lv_is_thin_pool(lv)) {
+ log_error("Policy-based resize is supported only for snapshot and thin pool volumes.");
return ECMD_FAILED;
}
_adjust_policy_params(cmd, lv, lp);
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-11-04 22:44 LVM2 doc/example.conf.in lib/config/defaults.h zkabelac
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