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cluster:151 [2016/11/21 19:33]
hmeij07 [Resync Data] 		cluster:151 [2016/11/29 19:08]
hmeij07 [Resync Data #2]
Line 87: Line 87:
 3678 3678
  
-# redefine with numtargets=2 +# with numtargets=1 beegfs still writes to all primary targets found in all buddygroups 
-# resync + 
 +# rebuild test servers with from scratch with numparts=2 
 +# drop hmeij/ into home1/ and obtain slightly more files (couple of 100s), not double the amount 
 +# /home/hmeij has 7808 files in it which gets split over primaries but numparts=2 would yield 15,616 files? 
 +# drop another copy in home2/ and file counts double to circa 7808 
 +[root@cottontail2 ~]# beegfs-ctl --getentryinfo  /mnt/beegfs/home1 
 +Path: /home1 
 +Mount: /mnt/beegfs 
 +EntryID: 0-583C50A1-FA 
 +Metadata node: cottontail2 [ID: 250] 
 +Stripe pattern details: 
 ++ Type: Buddy Mirror 
 ++ Chunksize: 512K 
 ++ Number of storage targets: desired: 2 
 +[root@cottontail2 ~]# beegfs-ctl --getentryinfo  /mnt/beegfs/home2 
 +Path: /home2 
 +Mount: /mnt/beegfs 
 +EntryID: 1-583C50A1-FA 
 +Metadata node: cottontail2 [ID: 250] 
 +Stripe pattern details: 
 ++ Type: Buddy Mirror 
 ++ Chunksize: 512K 
 ++ Number of storage targets: desired: 2 
 + 
 +Source: /home/hmeij 7808 files in 10G 
 + 
 +TargetID        Pool        Total         Free    %      ITotal       IFree    % 
 +========        ====        =====         ====    =      ======       =====    = 
 +   13601         low     291.4GiB      63.1GiB  22%       18.5M       18.5M 100% 
 +   13602         low     291.4GiB      63.1GiB  22%       18.5M       18.5M 100% 
 +   21701         low     291.2GiB     134.6GiB  46%       18.5M       16.2M  87% 
 +   21702         low     291.2GiB     134.6GiB  46%       18.5M       16.2M  87% 
 +[root@cottontail2 ~]# rsync -ac --bwlimit=2500 /home/hmeij /mnt/beegfs/home1/  & 
 +[root@cottontail2 ~]# rsync -ac --bwlimit=2500 /home/hmeij /mnt/beegfs/home2/  & 
 +TargetID        Pool        Total         Free    %      ITotal       IFree    % 
 +========        ====        =====         ====    =      ======       =====    = 
 +   13601         low     291.4GiB      43.5GiB  15%       18.5M       18.5M 100% 
 +   13602         low     291.4GiB      43.5GiB  15%       18.5M       18.5M 100% 
 +   21701         low     291.2GiB     114.9GiB  39%       18.5M       16.1M  87% 
 +   21702         low     291.2GiB     114.9GiB  39%       18.5M       16.1M  87% 
 + 
 +# first rsync drops roughly 5G in both primaries which then get copied to secondaries. 
 +# second rsync does the same so both storage servers loose 20G roughly 
 +# now shut a storage server down and the whole filesystem can still be accessed (HA)
  
 </code>  </code> 
cluster/151.txt · Last modified: 2016/12/06 20:14 by hmeij07

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