[LAU] RAID and AVLinux

[Jörn Nettingsmeier]

Jonathan E. Brickman wrote:
>>  You should at least use RAID6.
>>
>>   
> 1.  How does RAID6 differ from RAID5?

raid 6 uses a more elaborate algorithm than the simple parity of raid5,
to calculate two redundant bits. so you can recover from the failure of
two disks out of a raid6 array.

it's computationally more intensive, but the only feasible approach as
disk size increases, because, as other posters have pointed out, the
window of vulnerability during recovery is getting bigger and bigger.

my approach for music is this: all live recording goes to a mirrored
pair of disks. the data is then copied to a striped pair for editing,
with frequent backups.

at home it's actually just two disks with two partitions each, but since
i use either the striped or the mirrored part (except when copying stuff
over), it works pretty well, at low cost.