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cluster:151 [2016/10/31 18:45]
hmeij07 [Quota Enable and Enforce] 		cluster:151 [2016/11/03 13:45]
hmeij07 [Mirror Data]
Line 26: Line 26:
  
 ==== Mirror Data ==== ==== Mirror Data ====
 +
 +** Before **
  
 <code> <code>
Line 43: Line 45:
 </code> </code>
  
 +** Before **
 +
 +<code>
 +
 +# define buddygroup - these are storage target IDs
 +[root@n7 ~]# beegfs-ctl --addmirrorgroup --primary=13601 --secondary=21701 --groupid=101
 +Mirror buddy group successfully set: groupID 101 -> target IDs 13601, 21701
 +
 +[root@n7 ~]# beegfs-ctl --listmirrorgroups
 +     BuddyGroupID   PrimaryTargetID SecondaryTargetID
 +     ============   =============== =================
 +              101             13601             21701
 +              
 +# enable mirroring for data by directory -numTargets needs to be set to max nr of storage servers?
 +[root@n7 ~]# beegfs-ctl --setpattern --buddymirror /mnt/beegfs/hmeij-mirror-data --chunksize=512k --numtargets=2
 +New chunksize: 524288
 +New number of storage targets: 2
 +Path: /hmeij-mirror-data
 +Mount: /mnt/beegfs
 +
 +# copy some contents in (~hmeij is 10G)
 +[root@n7 ~]# rsync -vac --bwlimit /home/hmeij /mnt/beegfs/hmeij-mirror-data/ 
 +
 +</code>
 +
 +** After **
 +
 +<code>
 +
 +[root@n7 ~]# beegfs-df
 +
 +METADATA SERVERS: (almost no changes...)
 +STORAGE TARGETS: (each target less circa 10G)
 +TargetID        Pool        Total         Free    %      ITotal       IFree    %
 +========        ====        =====         ====    =      ======       =====    =
 +   13601         low     291.4GiB      40.7GiB  14%       18.5M       18.4M  99%
 +   21701         low     291.2GiB      51.9GiB  18%       18.5M       15.8M  85%
 +
 +# lets find an object
 +[root@n7 ~]# beegfs-ctl --getentryinfo /mnt/beegfs/hmeij-mirror-data/hmeij/xen/bvm1.img
 +Path: /hmeij-mirror-data/hmeij/xen/bvm1.img
 +Mount: /mnt/beegfs
 +EntryID: 178-581797C8-30
 +Metadata node: n38 [ID: 48]
 +Stripe pattern details:
 ++ Type: Buddy Mirror
 ++ Chunksize: 512K
 ++ Number of storage targets: desired: 2; actual: 1
 ++ Storage mirror buddy groups:
 +  + 101
 +
 +# original
 +[root@n7 ~]# ls -lh /mnt/beegfs/hmeij-mirror-data/hmeij/xen/bvm1.img
 +-rwxr-xr-x 1 hmeij its 4.9G 2014-04-07 13:39 /mnt/beegfs/hmeij-mirror-data/hmeij/xen/bvm1.img
 +
 +# copy on primary
 +[root@petaltail chroots]# ls -lh /var/chroots/data/beegfs_storage/buddymir/u2018/5817/9/60-58179513-30/178-581797C8-30
 +-rw-rw-rw- 1 root root 4.9G Apr  7  2014 /var/chroots/data/beegfs_storage/buddymir/u2018/5817/9/60-58179513-30/178-581797C8-30
 +
 +# copy on secondary
 +[root@swallowtail ~]# find /data/beegfs_storage -name 178-581797C8-30
 +/data/beegfs_storage/buddymir/u2018/5817/9/60-58179513-30/178-581797C8-30
 +[root@swallowtail ~]# ls -lh /data/beegfs_storage/buddymir/u2018/5817/9/60-58179513-30/178-581797C8-30
 +-rw-rw-rw- 1 root root 4.9G Apr  7  2014 /data/beegfs_storage/buddymir/u2018/5817/9/60-58179513-30/178-581797C8-30
 +
 +# seems to work, notice the ''buddymir'' directory on primary/secondary
 +
 +</code>
 ==== Quota ==== ==== Quota ====
  
cluster/151.txt ยท Last modified: 2016/12/06 20:14 by hmeij07

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