diff options
| author | Xavier Hernandez <xhernandez@datalab.es> | 2014-05-15 10:35:14 +0200 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2014-07-11 10:34:24 -0700 |
| commit | 1392da3e237d8ea080573909015916e3544a6d2c (patch) | |
| tree | 89f7f37e65b5d526c18e043cc7dbb51c9e19a50e /xlators/mgmt/glusterd/src/glusterd-store.h | |
| parent | ad112305a1c7452b13c92238b40ded80361838f3 (diff) | |
cli/glusterd: Added support for dispersed volumes
Two new options have been added to the 'create' command of the cli
interface:
disperse [<count>] redundancy <count>
Both are optional. A dispersed volume is created by specifying, at
least, one of them. If 'disperse' is missing or it's present but
'<count>' does not, the number of bricks enumerated in the command
line is taken as the disperse count.
If 'redundancy' is missing, the lowest optimal value is assumed. A
configuration is considered optimal (for most workloads) when the
disperse count - redundancy count is a power of 2. If the resulting
redundancy is 1, the volume is created normally, but if it's greater
than 1, a warning is shown to the user and he/she must answer yes/no
to continue volume creation. If there isn't any optimal value for
the given number of bricks, a warning is also shown and, if the user
accepts, a redundancy of 1 is used.
If 'redundancy' is specified and the resulting volume is not optimal,
another warning is shown to the user.
A distributed-disperse volume can be created using a number of bricks
multiple of the disperse count.
Change-Id: Iab93efbe78e905cdb91f54f3741599f7ea6645e4
BUG: 1118629
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/7782
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-store.h')
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-store.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.h b/xlators/mgmt/glusterd/src/glusterd-store.h index 89cf24de789..fb7de7b1b10 100644 --- a/xlators/mgmt/glusterd/src/glusterd-store.h +++ b/xlators/mgmt/glusterd/src/glusterd-store.h @@ -44,6 +44,8 @@ typedef enum glusterd_store_ver_ac_{ #define GLUSTERD_STORE_KEY_VOL_SUB_COUNT "sub_count" #define GLUSTERD_STORE_KEY_VOL_STRIPE_CNT "stripe_count" #define GLUSTERD_STORE_KEY_VOL_REPLICA_CNT "replica_count" +#define GLUSTERD_STORE_KEY_VOL_DISPERSE_CNT "disperse_count" +#define GLUSTERD_STORE_KEY_VOL_REDUNDANCY_CNT "redundancy_count" #define GLUSTERD_STORE_KEY_VOL_BRICK "brick" #define GLUSTERD_STORE_KEY_VOL_VERSION "version" #define GLUSTERD_STORE_KEY_VOL_TRANSPORT "transport-type" |