[mythtv-users] Why RAID 5 stops working in 2009

Mache Creeger mache at creeger.com
Fri Oct 24 19:45:58 UTC 2008

I have been watching the discussion that I kicked off with my post 
and I still don't have a good feeling on what we are all supposed to 
do for 2009.

I just installed a 4 x 1TB RAID5 array for a net of 3TBs. Given the 
URE argument, the next step should be ZFS. However while a less than 
optimal, user-space-based, fuse-based, ZFS is available, a 
kernel-based ZFS is not currently available or planned because of 
licensing issues.

So my questions are:

Going forward, what are best mythtv practices for many large disk drives?

Should we all go out and create OpenSolaris boxes as NAS boxes so we 
can get decent ZFS functionality and performance? Should we pray for 
ZFS kernel support on Linux per the recent posting of Linux Torvalds 
and Jeff Bonwick (ZFS creator) chatting together at Sun HQ? - 

Should we just pray that although the statistics say otherwise, 
native RAID5 on Linux will not self-destruct when using many large 
capacity drives?

Any ideas?

-- Mache
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