[mythtv-users] backend storage performance needs?

[Jim Abernathy]

Just an opinion request here.  When I built my current backend it was an 
old motherboard with lots of SATA II (3Gb/s) ports. I was worried about 
the need to have 2 recording drives defined so 2 simultaneous recordings 
would go to different drives.

I also wanted RAID mirrors so I used 4-2TB drives with mdadm RAID 1. A 
lot to maintain as drives do fail and RAID volumes have to be replaced 
and rebuilt. Replacing and rebuilding has occurred on average of once a 
year.

So the question is, if I bought a new motherboard with SATA III (6Gb.s) 
ports and new SATA III high performance hard drives would I really need 
to define 2 recording drives? i.e. use 2-4TB drives in RAID 1 mirror 
configuration.

My tuner is a PCIe Hauppauge WinTV Quat HD. I have 4 tuners defined with 
each tuner having a maximum recordings of 2. But I've never recorded 
more than 4 channels at once with some back-to-back programs on the same 
channel.

With the current speed of processors, serial connections, and hard 
drives do I still need 2 recording drives defined?

Since SSDs and RAID is not recommended, I avoided that in the discussion.

Jim A