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--- cluster:151 [2016/11/10 20:00]
hmeij07 [Mirror Data]
+++ cluster:151 [2016/11/10 20:37]
hmeij07 [Tuning]
@@ Line 180: / Line 180: @@
   * do BEFORE populating XFS file systems
+==== Meta Backup/Restore =====
+[[http://www.fhgfs.com/wiki/wikka.php?wakka=FAQ#ea_backup|External Link]]
+<code>
+# latest tar
+rpm -Uvh /sanscratch/tmp/beegfs/tar-1.23-15.el6_8.x86_64.rpm
+# backup
+cd /data; tar czvf /sanscratch/tmp/beegfs/meta-backup/n38-meta.tar.gz beegfs_meta/ --xattrs
+# restore
+cd /data;  tar xvf /sanscratch/tmp/beegfs/meta-backup/n38-meta.tar.gz --xattrs
+# test
+cd /data; diff -r beegfs_meta beegfs_meta.orig
+# no results
+</code>
+==== Resync Meta ====
+[[http://www.beegfs.com/wiki/AboutMirroring2012#hn_59ca4f8bbb_4|External Link]]
+  * older versions
+  * new future version will work like storage mirror with HA and self-healing
 ==== Mirror Meta ====
@@ Line 210: / Line 239: @@
 [root@sharptail ~]# ssh n38 find /data/beegfs_meta -name 3-581392E1-31
 /data/beegfs_meta/mirror/49.dentries/54/6C/0-581392F0-30/#fSiDs#/3-581392E1-31
-                  ^^^^^^
+                  ^^^^^^ ^^
 # and find
 [root@sharptail ~]# ssh n39 find /data/beegfs_meta -name 3-581392E1-31
@@ Line 287: / Line 316: @@
     * set in /etc/beegfs-[storage|client|meta|admon|mgmtd].conf and restart services
-  * backup beeGFS EA metadata, see faq
+  * backup/restore/mirror
-    * attempt a restore
+    * see more towards top this page
-    * or just snapshot
   * storage server tuning

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