Posted by Sven Gothel on May 30, 2013; 5:40pm
URL: https://forum.jogamp.org/Re-Move-jogamp-org-to-new-machine-due-to-need-for-reliable-healing-filesystem-ZFS-June-3rd-June-7th-tp4029275.html

https://jogamp.org/bugzilla/show_bug.cgi?id=742

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On current jogamp.org server, we have experienced silent GNU/Linux SW Raid-1
block mismatches.

[root@jogamp sysconfig]# cat /sys/block/md2/md/mismatch_cnt
1024

The semantics of GNU/Linux SW Raid are inconclusive, i.e. it could be nothing,
but also a silent degradation (block failure).

Since the only reliable filesystem w/ proven block failure detection via
sha256 checksums
including healing via redundancies (mirror or raidz) is ZFS,
we need to move to a new box w/ preferably ECC Ram and 2x Enterprise HDD for
mirroring setup.

A work in progress is documented here (doc will move to git later on):
  <http://jogamp.org/files/temp/zfs-linux-server-setup.txt>

The move will probably happen within next week, i.e. June 3rd - 7th.

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Cheers, Sven